Issue Title: System hard freeze and black screen preceded by amdgpu DMCUB diagnostic errors on Ryzen/Radeon platform.

Description: I am experiencing intermittent hard system freezes on my laptop, particularly when using the Performance power profile. The failure follows a consistent pattern:

1. Immediate Display Loss: The screen goes black instantly.

2. Unresponsive Input: The keyboard and mouse become completely unresponsive (caps lock light does not toggle).

3. Thermal/Fan Behavior: Even though the system is frozen, the fans immediately ramp up to 100% (Full RPM) and stay there until a hard manual reboot is performed.

4. Error Logs: The system logs capture the following error shortly before or during the crash: amdgpu 0000:05:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error - collecting diagnostic data

System Context:

• Platform: AMD Ryzen with integrated/dedicated Radeon graphics.

• Operating System: Ubuntu (26.04/Linux Kernel 7.0.0-15-generic).

• Power State: The issue is most prevalent in "Performance" mode, suggesting a possible conflict with PCIe ASPM (Active State Power Management) or Voltage/Frequency scaling transitions.

Suspected Cause: The error points to a crash of the DMCUB (Display Core Microcontroller). When this microcontroller fails, it seems to lose synchronization with the system's thermal management, causing the fans to default to a "fail-safe" maximum speed while the display engine dies.

Event logs: https://pastebin.com/yz0vh4Kg

System

# System Details Report
---

## Report details
- **Date generated:**                              2026-05-15 10:54:09

## Hardware Information:
- **Hardware Model:**                              Dell Inc. Vostro 5625
- **Memory:**                                      64.0 GiB
- **Processor:**                                   AMD Ryzen™ 7 5825U with Radeon™ Graphics × 16
- **Graphics:**                                    AMD Radeon™ Graphics
- **Disk Capacity:**                               512.1 GB

## Software Information:
- **Firmware Version:**                            1.27.0
- **OS Name:**                                     Ubuntu 26.04 LTS
- **OS Build:**                                    (null)
- **OS Type:**                                     64-bit
- **GNOME Version:**                               50
- **Windowing System:**                            Wayland
- **Kernel Version:**                              Linux 7.0.0-15-generic

sensors

mt7921_phy0-pci-0400
Adapter: PCI adapter
temp1:        +36.0°C  

k10temp-pci-00c3
Adapter: PCI adapter
Tctl:         +62.4°C  

BAT0-acpi-0
Adapter: ACPI interface
in0:          16.02 V  
curr1:       246.00 mA 

amdgpu-pci-0500
Adapter: PCI adapter
vddgfx:        1.44 V  
vddnb:       762.00 mV 
edge:         +42.0°C  
PPT:          33.00 W  
sclk:           1 GHz 

dell_smm-isa-00de
Adapter: ISA adapter
Processor Fan: 4624 RPM  (min =    0 RPM, max = 4636 RPM)
Other:          +59.0°C  
SODIMM:         +35.0°C  
Ambient:        +35.0°C  
Other:          +30.0°C  
GPU:            +16.0°C  
pwm1:              128%  MANUAL CONTROL

nvme-pci-0200
Adapter: PCI adapter
Composite:    +32.9°C  (low  =  -0.1°C, high = +82.8°C)
                       (crit = +84.8°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1:        +59.0°C

I was trying to use these commands to install Firebird on Windows Subsystem for Linux (I'm new to this).

wget -O firebird.tar.gz https://github.com/FirebirdSQL/firebird/releases/download/R2_5_9/FirebirdSS-2.5.9.27139-0.amd64.tar.gz

then:

tar -zxvf firebird.tar.gz

then:

sudo ./install.sh

And I typed my password. All I got was: sudo: './install.sh': command not found

What am I doing wrong? I used this instruction (It's a Polish website, but you can translate it.): https://dgcs.pl/firebird3-0-linux/

This update to the kernel was installed some minutes ago.

The boot sequence stops after display of splash screen after switching from a low resolution display to my usual 1920 x 1080, but then stops without displaying the login prompt.

Ubuntu 24.04My GPU is NVIDIA / GeForce GT 710.

rebooted using the previous 6.8.0-111-generic kernel, this works fine.

I have installed ubuntu for the first time and the fans are not working at all regardless of the load.

Laptop Model: OMEN by HP Gaming Laptop 16-xd0xxx

Base Board: 8BCD

CPU: ryzen 7 7840hs
GPU: RTX 4050 laptop.

What I have tried:
I tried going into sys/class/hwmon/ and there in hwmon6, whose name is hp, both fan speeds are 0 and not updating, pwm1_enable is set to 2

I ran this command also: ls /sys/kernel/debug/ec/ec0/io 2>/dev/null || echo "EC not accessible" and out put is EC not accessible

If you need any other other information, I will provide it

I am trying to use a qualcomm QCN9274(compex WLE7002E25) wifi card on my x86 machine, but it's not working with the ath12k driver.

I am using the official board-2.bin from the upstream repository here: https://git.codelinaro.org/clo/ath-firmware/ath12k-firmware/-/tree/main/QCN9274/hw2.0?ref_type=heads

[  954.894565] ath12k_pci 0000:01:00.0: BAR 0 [mem 0x80400000-0x805fffff 64bit]: assigned
[  954.894706] ath12k_pci 0000:01:00.0: MSI vectors: 16
[  954.894709] ath12k_pci 0000:01:00.0: Hardware name: qcn9274 hw2.0
[  955.593136] ath12k_pci 0000:01:00.0: qmi dma allocation failed (29360128 B type 1), will try later with small size
[  955.606921] ath12k_pci 0000:01:00.0: memory type 10 not supported
[  955.612535] ath12k_pci 0000:01:00.0: chip_id 0x0 chip_family 0xb board_id 0x101a soc_id 0x401a2200
[  955.612548] ath12k_pci 0000:01:00.0: fw_version 0x141580c7 fw_build_timestamp 2024-11-11 11:03 fw_build_id QC_IMAGE_VERSION_STRING=WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
[  955.635702] ath12k_pci 0000:01:00.0: failed to fetch board data for bus=pci,qmi-chip-id=0,qmi-board-id=4122 from ath12k/QCN9274/hw2.0/board-2.bin
[  955.635707] ath12k_pci 0000:01:00.0: failed to fetch board data for bus=pci,qmi-chip-id=0,qmi-board-id=255 from ath12k/QCN9274/hw2.0/board-2.bin
[  955.635709] ath12k_pci 0000:01:00.0: failed to fetch board.bin from QCN9274/hw2.0
[  955.635711] ath12k_pci 0000:01:00.0: qmi failed to load bdf:
[  955.635712] ath12k_pci 0000:01:00.0: qmi failed to load board data file:-2

jack@jack-pc:~$ uname -a
Linux jack-pc 6.8.0-111-generic #111~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Apr 14 17:13:45 UTC  x86_64 x86_64 x86_64 GNU/Linux

Do anyone know whats the problem is?

I am currently using the following Ubuntu 24.04 (Noble) linux-qcom source repository for the IQ9075 platform:

https://git.launchpad.net/ubuntu/+source/linux-qcom

In particular, I am building from the applied/ubuntu/noble-updates branch.

While checking this repository, I noticed that there does not appear to be a Jammy branch available. I then searched further and found the following Jammy repository instead:

https://git.launchpad.net/\~canonical-kernel/ubuntu/+source/linux-qcom/+git/jammy

However, it seems that development activity is now mainly focused on Noble branches, and I could not find an equivalent actively maintained Jammy branch/source for IQ9075.

Are Ubuntu 22.04 (Jammy) kernel sources for the IQ9075 platform no longer being provided or maintained?

Thank you.

I am using Ubuntu 25.10 and I think my PC may have been compromised by malware or a trojan.

The reason I suspect this is because:

• My ad blocker suddenly stopped working.

• Some messages were deleted from my email account and Instagram account without my permission.

• I am worried someone may have gained access to my accounts or system.

I do not have much experience with Ubuntu or Linux security, so I am not sure how to properly check my system.

So far I have tried:

• Running ss -tulnp to check open ports.

• Checking running processes manually.

• Trying to use debsums, but it was not installed.

I would like to know:

1. How can I verify if my Ubuntu system is infected or compromised?

2. What logs or commands should I check?

3. How can I determine whether the problem is in my PC or only in my online accounts?

4. What immediate security steps should I take?

Hey guys Ive been encountering plenty of problems in kubuntu 26.04 that wont help me use my pc normally:

1. Translucenty and wouble window effects get reaplied after each reboot without my consent

2. Chrome on xorg with using the built in classic option from apearance aka colors, the titlebar buttons disapear when I try to type on the adressbar.

3. Plymouth animation apears during transition from sddm to desktop (I have selected None as a transition)

4. The locale on the time widget in taskbar rejects any effort to be changed and still uses the greek time format ΠΜ, ΜΜ, When i clearly setted it to american am pm. I use greek only for keybaord

I have to note that I also use klassy I seriously need to find a solution cause the name implies LTS and im disapointed.

Can anyone help me? Plasma 6.6.4 Just upagraded

I have some troubles with camera/webcame for Dell Latitude 73640. On the live USB of UBUNTU, camera is working. But not after installation...

Here after a short diagnosis of what is available on the live :

dpkg -l | grep -Ei 'ipu|ivsc|camera|libcamera|pipewire|portal|v412'    

ii  accountsservice                            23.13.9-8ubuntu5                           amd64        query and manipulate user account information
    ii  bpftool                                    7.7.0+7.0.0-14.14                          amd64        Inspection and simple manipulation of BPF programs and maps
    ii  bubblewrap                                 0.11.1-1                                   amd64        utility for unprivileged chroot and namespace manipulation
    ii  cups-ppdc                                  2.4.16-1ubuntu1                            amd64        Common UNIX Printing System(tm) - PPD manipulation utilities
    ii  gnome-remote-desktop                       50.0-0ubuntu2                              amd64        Remote desktop daemon for GNOME using PipeWire
    ii  gstreamer1.0-libcamera:amd64               0.7.0-1ubuntu2                             amd64        complex camera support library (GStreamer plugin)
    ii  gstreamer1.0-pipewire:amd64                1.6.2-1ubuntu1                             amd64        GStreamer 1.0 plugin for the PipeWire multimedia server
    ii  iputils-ping                               3:20250605-1ubuntu1                        amd64        Tools to test the reachability of network hosts
    ii  iputils-tracepath                          3:20250605-1ubuntu1                        amd64        Tools to trace the network path to a remote host
    ii  libaccountsservice0:amd64                  23.13.9-8ubuntu5                           amd64        query and manipulate user account information - shared libraries
    ii  libblockdev3:amd64                         3.4.0-1                                    amd64        Library for manipulating block devices
    ii  libcamera-ipa:amd64                        0.7.0-1ubuntu2                             amd64        complex camera support library (IPA modules)
    ii  libcamera0.7:amd64                         0.7.0-1ubuntu2                             amd64        complex camera support library
    ii  libexiv2-28:amd64                          0.28.8+dfsg-1                              amd64        EXIF/IPTC/XMP metadata manipulation library
    ii  libexiv2-data                              0.28.8+dfsg-1                              all          EXIF/IPTC/XMP metadata manipulation library - shared data
    ii  libgphoto2-6t64:amd64                      2.5.33-1ubuntu1                            amd64        gphoto2 digital camera library
    ii  libgphoto2-l10n                            2.5.33-1ubuntu1                            all          gphoto2 digital camera library - localized messages
    ii  libgphoto2-port12t64:amd64                 2.5.33-1ubuntu1                            amd64        gphoto2 digital camera port library
    ii  libisl23:amd64                             0.27-1build1                               amd64        manipulating sets and relations of integer points bounded by linear constraints
    ii  libjansson4:amd64                          2.14-2build4                               amd64        C library for encoding, decoding and manipulating JSON data
    ii  libjson-c5:amd64                           0.18+ds-3                                  amd64        JSON manipulation library - shared library
    ii  libjson-glib-1.0-0:amd64                   1.10.8+ds-2                                amd64        GLib JSON manipulation library
    ii  libjson-glib-1.0-common                    1.10.8+ds-2                                all          GLib JSON manipulation library (common files)
    ii  libmailtools-perl                          2.22-1                                     all          modules to manipulate email in perl programs
    ii  liboeffis1:amd64                           1.5.0-3                                    amd64        RemoteDesktop portal DBus helper library
    ii  libparted-fs-resize0t64:amd64              3.6-6                                      amd64        disk partition manipulator - shared FS resizing library
    ii  libparted2t64:amd64                        3.6-6                                      amd64        disk partition manipulator - shared library
    ii  libpipeline1:amd64                         1.5.8-2                                    amd64        Unix process pipeline manipulation library
    ii  libpipewire-0.3-0t64:amd64                 1.6.2-1ubuntu1                             amd64        libraries for the PipeWire multimedia server
    ii  libpipewire-0.3-common                     1.6.2-1ubuntu1                             all          libraries for the PipeWire multimedia server - common files
    ii  libpipewire-0.3-modules:amd64              1.6.2-1ubuntu1                             amd64        libraries for the PipeWire multimedia server - modules
    ii  libpixman-1-0:amd64                        0.46.4-1                                   amd64        pixel-manipulation library for X and cairo
    ii  libportal-gtk3-1:amd64                     0.9.1-2build1                              amd64        Flatpak portal library for GTK 3 GUIs
    ii  libportal-gtk4-1:amd64                     0.9.1-2build1                              amd64        Flatpak portal library for GTK 4 GUIs
    ii  libportal1:amd64                           0.9.1-2build1                              amd64        Flatpak portal library - non-GUI part
    ii  libsepol2:amd64                            3.9-2                                      amd64        SELinux library for manipulating binary security policies
    ii  libspa-0.2-bluetooth:amd64                 1.6.2-1ubuntu1                             amd64        libraries for the PipeWire multimedia server - bluetooth plugins
    ii  libspa-0.2-libcamera:amd64                 1.6.2-1ubuntu1                             amd64        libraries for the PipeWire multimedia server - libcamera plugin
    ii  libspa-0.2-modules:amd64                   1.6.2-1ubuntu1                             amd64        libraries for the PipeWire multimedia server Simple Plugin API - modules
    ii  libtimedate-perl                           2.3300-2                                   all          collection of modules to manipulate date/time information
    ii  liburi-perl                                5.34-2build1                               all          module to manipulate and access URI strings
    ii  libvolume-key1:amd64                       0.3.12-10build2                            amd64        Library for manipulating storage encryption keys and passphrases
    ii  libxkbfile1:amd64                          1:1.1.0-1build5                            amd64        X11 keyboard file manipulation library
    ii  linux-firmware-intel-graphics              20260319.git217ca6e4-0ubuntu2              all          Firmware for Intel graphics and IPU and VSC processors
    ii  mokutil                                    0.7.2-2                                    amd64        tools for manipulating machine owner keys
    ii  mount                                      2.41.3-3ubuntu2                            amd64        tools for mounting and manipulating filesystems
    ii  parted                                     3.6-6                                      amd64        disk partition manipulator
    ii  pipewire:amd64                             1.6.2-1ubuntu1                             amd64        audio and video processing engine multimedia server
    ii  pipewire-alsa:amd64                        1.6.2-1ubuntu1                             amd64        PipeWire ALSA plugin, for ALSA applications to output via PipeWire
    ii  pipewire-audio                             1.6.2-1ubuntu1                             all          recommended set of PipeWire packages for a standard audio desktop use
    ii  pipewire-bin                               1.6.2-1ubuntu1                             amd64        PipeWire multimedia server - programs
    ii  pipewire-pulse                             1.6.2-1ubuntu1                             amd64        PipeWire PulseAudio daemon
    ii  python3-jaraco.text                        4.0.0-1build1                              all          jaraco text manipulation functions
    ii  python3-lazr.uri                           1.0.6-7build1                              all          library for parsing, manipulating, and generating URIs
    ii  python3-netaddr                            1.3.0-1build1                              all          manipulation of various common network address notations (Python 3)
    ii  python3-xkit                               0.5.0ubuntu8                               all          library for the manipulation of xorg.conf files (Python 3)
    ii  sbsigntool                                 0.9.4-3.1ubuntu9                           amd64        Tools to manipulate signatures on UEFI binaries and drivers
    ii  udisks2                                    2.10.91-1ubuntu2                           amd64        D-Bus service to access and manipulate storage devices
    ii  wireplumber                                0.5.13-1ubuntu1                            amd64        modular session / policy manager for PipeWire
    ii  xdg-desktop-portal                         1.21.1+ds-1ubuntu3                         amd64        desktop integration portal for Flatpak and Snap
    ii  xdg-desktop-portal-gnome                   50.0-0ubuntu1                              amd64        GNOME portal backend for xdg-desktop-portal
    ii  xdg-desktop-portal-gtk                     1.15.3-2ubuntu1                            amd64        GTK+/GNOME portal backend for xdg-desktop-portal
    ii  xorriso                                    1:1.5.6-1.1ubuntu4                         amd64        command line ISO-9660 and Rock Ridge manipulation tool

And

lsmod | grep -Ei 'iup|ivsc|v4l2|uvc'
videobuf2_v4l2         36864  1 intel_ipu6_isys
videobuf2_common       90112  4 videobuf2_v4l2,intel_ipu6_isys,videobuf2_dma_sg,videobuf2_memops
ivsc_ace               16384  0
ivsc_csi               12288  3
mei                   184320  10 ivsc_ace,mei_hdcp,mei_pxp,ivsc_csi,mei_vsc,mei_me
ipu_bridge             24576  3 intel_ipu6,ivsc_csi,intel_ipu6_isys
v4l2_fwnode            40960  8 hi556,ivsc_csi,intel_ipu6_isys
v4l2_async             32768  4 v4l2_fwnode,hi556,ivsc_csi,intel_ipu6_isys
videodev              376832  16 v4l2_async,v4l2_fwnode,hi556,videobuf2_v4l2,ivsc_csi,intel_ipu6_isys
mc                     90112  10 v4l2_async,videodev,snd_usb_audio,hi556,videobuf2_v4l2,ivsc_csi,intel_ipu6_isys,videobuf2_common

And to complete

sudo dmesg | grep -Ei 'iup|ivsc|camera|sensor|ov'
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] efi: Remove mem99: MMIO range=[0xc0000000-0xcfffffff] (256MB) from e820 map
[    0.000000] e820: remove [mem 0xc0000000-0xcfffffff] device reserved
[    0.000000] efi: Remove mem100: MMIO range=[0xf9800000-0xf9ffffff] (8MB) from e820 map
[    0.000000] e820: remove [mem 0xf9800000-0xf9ffffff] device reserved
[    0.000000] efi: Remove mem102: MMIO range=[0xff000000-0xffffffff] (16MB) from e820 map
[    0.000000] e820: remove [mem 0xff000000-0xffffffff] device reserved
[    0.000011] e820: remove [mem 0x000a0000-0x000fffff] System RAM
[    0.009607] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.009609] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.009704] Movable zone start for each node
[    0.115649] thermal_sys: Registered thermal governor 'fair_share'
[    0.115649] thermal_sys: Registered thermal governor 'bang_bang'
[    0.115649] thermal_sys: Registered thermal governor 'step_wise'
[    0.115649] thermal_sys: Registered thermal governor 'user_space'
[    0.115649] thermal_sys: Registered thermal governor 'power_allocator'
[    0.115649] cpuidle: using governor ladder
[    0.115649] cpuidle: using governor menu
[    0.653235] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.826156] fbcon: Deferring console take-over
[    0.840610] Key type fscrypt-provisioning registered
[    1.839677] hid-generic 001F:8087:0AC2.0002: hidraw1: SENSOR HUB HID v2.00 Device [hid-ishtp 8087:0AC2] on 
[    1.854131] hid-generic 001F:8087:0AC2.0003: hidraw2: SENSOR HUB HID v2.00 Device [hid-ishtp 8087:0AC2] on 
[    1.866426] hid-generic 001F:8087:0AC2.0004: hidraw3: SENSOR HUB HID v2.00 Device [hid-ishtp 8087:0AC2] on 
[    1.873646] hid-generic 001F:8087:0AC2.0005: hidraw4: SENSOR HUB HID v2.00 Device [hid-ishtp 8087:0AC2] on 
[    1.878387] hid-sensor-hub 001F:8087:0AC2.0002: hidraw1: SENSOR HUB HID v2.00 Device [hid-ishtp 8087:0AC2] on 
[    1.879948] hid-sensor-hub 001F:8087:0AC2.0003: hidraw2: SENSOR HUB HID v2.00 Device [hid-ishtp 8087:0AC2] on 
[    1.881466] hid-sensor-hub 001F:8087:0AC2.0004: hidraw3: SENSOR HUB HID v2.00 Device [hid-ishtp 8087:0AC2] on 
[    1.882495] hid-sensor-hub 001F:8087:0AC2.0005: hidraw4: SENSOR HUB HID v2.00 Device [hid-ishtp 8087:0AC2] on 
[    2.127658] usb 2-1.3: Manufacturer: Lenovo
[    3.067688] raid6: using avx2x2 recovery algorithm
[    3.866954] sd 0:0:0:0: [sda] Attached SCSI removable disk
[    4.808951] overlayfs: null uuid in non-single lower fs '/', falling back to xino=off,index=off,nfs_export=off.
[    5.254541] EXT4-fs (sda4): recovery complete
[    5.773359] evm: overlay not supported
[   14.550372] systemd[1]: /usr/lib/systemd/system/xfs_scrub_all.service:26: Support for option CPUAccounting= has been removed and it is ignored
[   14.550782] systemd[1]: /usr/lib/systemd/system/system-xfs_scrub.slice:15: Support for option CPUAccounting= has been removed and it is ignored
[   16.866612] RAPL PMU: API unit is 2^-32 Joules, 4 fixed counters, 655360 ms ovfl timer
[   17.174889] fbcon: Deferring console take-over
[   29.575149] pci 0000:00:05.0: Found supported sensor INT3537:00
[   29.575381] pci 0000:00:05.0: Connected 1 cameras
[   29.760132] hi556 i2c-INT3537:00: supply dovdd not found, using dummy regulator

And

systemctl --user --no-pager | grep -E 'pipewire|portal|wireplumber'
  pipewire-pulse.service                                                                                                                                              loaded active     running         PipeWire PulseAudio
  pipewire.service                                                                                                                                                    loaded active     running         PipeWire Multimedia Service
  wireplumber.service                                                                                                                                                 loaded active     running         Multimedia Service Session Manager
  xdg-desktop-portal-gnome.service                                                                                                                                    loaded active     running         Portal service (GNOME implementation)
  xdg-desktop-portal-gtk.service                                                                                                                                      loaded active     running         Portal service (GTK/GNOME implementation)
  xdg-desktop-portal.service                                                                                                                                          loaded active     running         Portal service
  xdg-document-portal.service                                                                                                                                         loaded active     running         flatpak document portal service
  pipewire-pulse.socket                                                                                                                                               loaded active     running         PipeWire PulseAudio
  pipewire.socket                                                                                                                                                     loaded active     running         PipeWire Multimedi

After the installation on the PC, the cam -l retunr the follwoing results :

WIth the command cam -l

cam -l
[0:07:40.546835667] [10325]  INFO Camera camera_manager.cpp:340 libcamera v0.7.0
[0:07:40.564887582] [10333]  WARN CameraSensor camera_sensor_legacy.cpp:355 'hi556 15-0020': Recommended V4L2 control 0x009a0922 not supported
[0:07:40.564931589] [10333]  WARN CameraSensor camera_sensor_legacy.cpp:427 'hi556 15-0020': The sensor kernel driver needs to be fixed
[0:07:40.564938308] [10333]  WARN CameraSensor camera_sensor_legacy.cpp:429 'hi556 15-0020': See Documentation/sensor_driver_requirements.rst in the libcamera sources for more information
[0:07:40.565146356] [10333]  WARN CameraSensorProperties camera_sensor_properties.cpp:548 No static properties available for 'hi556'
[0:07:40.565153890] [10333]  WARN CameraSensorProperties camera_sensor_properties.cpp:550 Please consider updating the camera sensor properties database
[0:07:40.565158322] [10333]  WARN CameraSensor camera_sensor_legacy.cpp:595 'hi556 15-0020': Failed to retrieve the camera location
[0:07:40.565162437] [10333]  WARN CameraSensor camera_sensor_legacy.cpp:617 'hi556 15-0020': Rotation control not available, default to 0 degrees
[0:07:40.565168593] [10333]  WARN CameraSensor camera_sensor_legacy.cpp:502 'hi556 15-0020': No sensor delays found in static properties. Assuming unverified defaults.
[0:07:40.566589384] [10333]  WARN IPAProxy ipa_proxy.cpp:192 Configuration file 'hi556.yaml' not found for IPA module 'simple', falling back to '/usr/share/libcamera/ipa/simple/uncalibrated.yaml'
[0:07:40.566616685] [10333]  WARN IPASoft soft_simple.cpp:104 IPASoft: Failed to create camera sensor helper for hi556
[0:07:40.566813437] [10333]  INFO Camera camera_manager.cpp:223 Adding camera '\_SB_.PC00.LNK1' for pipeline handler simple
Available cameras:
1: 'hi556' (\_SB_.PC00.LNK1)

Does anyone know a grub setting (GRUB_GFXMODE = ?) that makes the grub menu appear a bit larger? I tried 1280x800 and Windows 11 got spooked and would not boot. This is a dual boot Windows 11 and Ubuntu 26.04 on a laptop with screen resolution 2560x1600. So you can imagine how small grub looks. thanks

Why would some USB drives be slower than other and is there anything that can be done about it?

Now that I am upgrading to XUbuntu26.04, I've been running some daily backups on both systems.

The time to complete the backup ranges from about 80 minutes to something close to 150 minutes. Thus far I am not finding much if any difference in timing between 24.04 and 26.04, although two years ago I did find 22.04 significantly faster on USB2 type drives. The drives I am using are USB 3.2, purchased some months back as a 10 pack so, they are probably from the same production run.

What I am noticing is that some specific drives run around 90 minutes on 24.04 and 26.04 while other drives take close to 140 minutes on 24.04 and 26.04. I am using very similar ports in both cases. The systems are identical Optiplex systems. The port is appropriate for USB 3 devices (labeld SS).

I have done some further testing then looked at the values reported by lsusb -tv Three of them reported an ID of 13FE and what I think is the manufacture (Phison Electronics). One of the drives reports asn ID of 325d. Two of them are requiring about 140 minutes, the other two required about 100 minutes. There were all purchased as Teamgroup 64GB 3.2 USB drives. The one which reports a blank manufacturer is one of the two fast drives.

$ LANG=C sudo apt full-upgrade 
Not upgrading:                  
  cpp-15                   libasan8    libgcc-15-dev  libgomp1    liblsan0      libstdc++-15-dev  libubsan1
  cpp-15-x86-64-linux-gnu  libatomic1  libgcc-s1      libhwasan0  libobjc4      libstdc++6
  gcc-15-base              libcc1-0    libgfortran5   libitm1     libquadmath0  libtsan2

Summary:
  Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 19

$ sudo do-release-upgrade -d
Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.

$ LANG=C sudo apt-get install build-essential 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Solving dependencies... Error!
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 build-essential : Depends: gcc (>= 4:14.2) but it is not going to be installed
                   Depends: g++ (>= 4:14.2) but it is not going to be installed
E: Unable to satisfy dependencies. Reached two conflicting decisions:
   1. gcc-15:amd64 is selected for install because:
      1. build-essential:amd64=12.12ubuntu1 is selected for install
      2. build-essential:amd64 Depends gcc (>= 4:14.2)
      3. gcc:amd64 Depends gcc-15 (>= 15.2.0-2~)
   2. gcc-15:amd64 is available in versions 15.2.0-5ubuntu1, 15.2.0-4ubuntu4
      but none of the choices are installable:
      - gcc-15:amd64=15.2.0-5ubuntu1 Depends gcc-15-base (= 15.2.0-5ubuntu1)
        but none of the choices are installable:
        - gcc-15-base:amd64=15.2.0-5ubuntu1 is not selected for install because:
          1. libgcc-s1:i386 is selected for install
          2. libgcc-s1:i386 Depends gcc-15-base:i386 (= 15.2.0-4ubuntu4)
          3. gcc-15-base:i386 Breaks gcc-15-base (!= 15.2.0-4ubuntu4)
      - gcc-15:amd64=15.2.0-4ubuntu4 is not selected for install

$ LANG=C sudo apt-get install gcc-15 g++-15
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Solving dependencies... Error!
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 g++-15 : Depends: g++-15-x86-64-linux-gnu (= 15.2.0-5ubuntu1)
          Depends: gcc-15-base (= 15.2.0-5ubuntu1) but 15.2.0-4ubuntu4 is to be installed
 gcc-15 : Depends: gcc-15-x86-64-linux-gnu (= 15.2.0-5ubuntu1)
          Depends: gcc-15-base (= 15.2.0-5ubuntu1) but 15.2.0-4ubuntu4 is to be installed
          Depends: cpp-15 (= 15.2.0-5ubuntu1) but 15.2.0-4ubuntu4 is to be installed
E: Unable to satisfy dependencies. Reached two conflicting decisions:
   1. gcc-15-base:i386 is selected for install because:
      1. libgcc-s1:i386 is selected for install
      2. libgcc-s1:i386 Depends gcc-15-base:i386 (= 15.2.0-4ubuntu4)
   2. gcc-15-base:i386 is selected for removal because:
      1. g++-15:amd64=15.2.0-5ubuntu1 is selected for install
      2. g++-15:amd64=15.2.0-5ubuntu1 Depends gcc-15-base (= 15.2.0-5ubuntu1)
      3. gcc-15-base:i386 Breaks gcc-15-base (!= 15.2.0-4ubuntu4)

How to fix them?

I know the title is quite generic but I have more than one problem with external monitors attached to the docking station.

I am using Ubuntu 24.04.4 on a Lenovo Legion Pro 5 with Nvidia Geforce RTX. I have a HP USB-C Dock G5 attached to the C-port and two monitors connected to it with DisplayPort.

The computer has some problems identifying the monitors: every time I turn it off and on again, it forgets the configuration I set the last time, even if it is correctly stored in .config/monitors.xml:

<monitors version="2">
  <configuration>
    <logicalmonitor>
      <x>3072</x>
      <y>467</y>
      <scale>2</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>eDP-2</connector>
          <vendor>SDC</vendor>
          <product>ATNA60HS01-0 </product>
          <serial>0x00000000</serial>
        </monitorspec>
        <mode>
          <width>2560</width>
          <height>1600</height>
          <rate>165.000</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <logicalmonitor>
      <x>1536</x>
      <y>0</y>
      <scale>1.25</scale>
      <monitor>
        <monitorspec>
          <connector>DP-2</connector>
          <vendor>HPN</vendor>
          <product>HP P24h G4</product>
          <serial>3CM1052G6T   </serial>
        </monitorspec>
        <mode>
          <width>1920</width>
          <height>1080</height>
          <rate>60.000</rate>
        </mode>
      </monitor>
    </logicalmonitor>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>1.25</scale>
      <monitor>
        <monitorspec>
          <connector>DP-3</connector>
          <vendor>HPN</vendor>
          <product>HP P24h G4</product>
          <serial>3CM1052HNP   </serial>
        </monitorspec>
        <mode>
          <width>1920</width>
          <height>1080</height>
          <rate>60.000</rate>
        </mode>
      </monitor>
    </logicalmonitor>
  </configuration>
</monitors>

I noticed sometimes it used to add a second configuration by himself, so I set the file to readonly but this did not solve the problem. I also tried to copy it into /var/lib/gdm3/.config/ .

Also, sometimes one of the monitors turns off and on again while I am working (it takes about 2-3 seconds); everytime I lock the screen, it stays black and does note receive signal until I manually turn it off, lock again the screen, turn it on and unlock computer.

Is there a way to fix all these problems? Don't hesitate to ask for further details.

Thanks in advance

EDIT I noticed that the configuration problems happens only at stratup, but if I restart it the monitors are placed correctly. Anyway, I would like to avoid having to start and restart the computer every time I need to use it.

I am running Proxmox inside VMware Workstation. I uploaded an Ubuntu ISO and made two VMs. My goal is to have these VMs stay in sync: any change made in VM1 should automatically appear in VM2, and vice versa.

To achieve this, I installed "Syncthing". However, I am struggling with the path configuration. It is difficult to add all the directories in the operating system, and I want to applied for example changes in /etc/named.conf, but the path of syncthing is /sync/share, so I don't think this is a correct way to sync any changes between two VMs.

How do I configure Syncthing paths between two Ubuntu VMs in Proxmox?

How to turn "Alt+l+e+up-key+enter" combination into a shortcut?

I'm using vlc to watch media and I'd like to create a shortcut that does the same job as a key combination for slowing or speeding up video. The key combination pressed in order is "Alt+l+e+up-key+enter" for speeding up and "Alt+l+e+down-key+enter" for slowing down.

What do I type in the command line for Setting Custom Shortcut ?

Edit: instead of pressing "Alt+l+e+down-key+enter" every time to speed up I'd like to create a shortcut for it. I'm on ubuntu 22.04 , Xserver.

Edit 2:Added Images

First input/macro

Second input/macro

Enabling the autoload for one macro disables the other one.

Edit 3: The way to make it work in input remapper in my case is to put all your related macros into one preset.

Thanks

My system is a Raspberry Pi 5 16GB running a fresh install of Ubuntu 26.04 with restricted extras installed plus all Gstreamer add-ons including good, bad and ugly.

If I use Showtime (Gstreamer-based) it cannot play videos encoded with h.265; the detailed error message is:

Error from element /GstPlayBin3:playbin3/GstURIDecodeBin3:uridecodebin3/GstDecodebin3:decodebin3-0/v4l2slh265dec:v4l2slh265dec1:   
Could not get/set settings from/on resource.  

Failed to configure the buffer pool

../gst-libs/gst/video/gstvideodecoder.c(4373): gst_video_decoder_decide_allocation_default (): /GstPlayBin3:playbin3/GstURIDecodeBin3:uridecodebin3/GstDecodebin3:decodebin3-0/v4l2slh265dec:v4l2slh265dec1:

Configuration is most likely invalid, please report this issue.

In other Gstreamer tests the error 'unsupported pixel format' is reported which is also h.265-related.

I can use other apps such as VLC to play h.265 videos, so that is not a problem, but because the [low-resource overhead] default file sharing on Ubuntu (simple on/off switch in settings menu) that I use to stream video to my TV (Rygel) is also Gstreamer-based, and because it cannot negotiate h.265 videos, it refuses to serve them. It also worked perfectly in 24.04 before I moved to 26.04.

I confirmed with a non-RPi5 user running Ubuntu 26.04 AMD64 build that Gstreamer works fine with h.265, and on the Raspberry Pi forum, a moderator said that Gstreamer fixes had recently been applied to RPiOS to address h.265 problems, so it could be that Ubuntu engineers have yet to get that across to the ARM-based Ubuntu 26.04 updates?

Edit 14th May: Just to add that a few updates today I thought might address this issue, but sadly not because Showtime can still not handle h.265 content.

My system :

Operating System: Kubuntu 24.04
KDE Plasma Version: 5.27.12
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13
Kernel Version: 6.8.0-111-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx
Memory: 13.6 GiB of RAM
Graphics Processor: AMD Radeon Vega 8 Graphics
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: VivoBook_ASUSLaptop X515DA_M515DA
System Version: 1.0

New installed as second Desktop (alongside MATE).

EXT-Usb mounted via fstab :

UUID=948A8A348A8A1342    /media/mnt/WD_3T_Ext      ntfs-3g         defaults,nls=utf8,umask=0000,nofail,windows_names  0       0

Did for minidlna :

chmod 755 /home/user
chmod 755 /home/user/Videos
chmod 755 /home/user/Musik

Behaviour : A file will be selected via Dolphin -> context Menu move -> context Menu Insert file (the respective directory of the USB-HDD) :

After the file has been copied, I receive an error message : "File does not exist", it does mean the former file in home.

But the moved file does exist in the USB-Device, and it is also deleted in home, but visible in home and via F5 not visible any more. The move operation itself is correct, except F5 must be pressed.

USB to USB same problem as above

Vice versa (USB to home) no problem

home to SD-Card no problem

No problems I had with move operations + caja (Mate).

Any Idea to solve this problem, to remove the "wrong error indication" ?

I recently installed Ubuntu 26.04 and I noticed that the thumbnails for my comics aren't showing in the Files file manager. I tried installing different thumbnailers, but nothing seems to work. Instead it just shows the default Ubuntu document icons.

I do not have Evince or mcomix installed. I'm using the default document reader that comes with Ubuntu 26.04.

We are running a bunch of containers for a cyber security teaching environment, where students can execute arbitrary commands (unprivileged).

Our system (Ubuntu 24.04.4 LTS) is affected by the recently-published "Copy Fail" vulnerability (CVE-2026-31431).

Unfortunately, updating did not produce any new kernel packages, and we are still stuck with 6.8.0-110:

# uname -a
Linux teaching-host 6.8.0-110-generic #110-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 19 15:09:20 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux

PoC exploit (makes su not ask for passwords until undoing it below or rebooting):

$ cat exploit.py | python3 && su
# id
uid=0(root) gid=1000(user) groups=1000(user),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),101(lxd),988(docker)
# sudo sysctl -w vm.drop_caches=3 # Undo the exploit

How can we harden our system until an official patch package becomes available?

yesterday I updated my Ubuntu 24.04 LTS to 26.04 LTS. After updating, Nautilus file explorer is not displaying thumbnail previews for files added after the update. Is this a bug? How to resolve it? Thanks for the help.

I have an ASUS Vivobook 18 M1807HA with an AMD Radeon 780M integrated GPU running Ubuntu 24.04 (kernel 6.17.0-20-generic).

Problem

When running on battery power only, my laptop generates constant USB device connection/disconnection sounds (the "ding-dong" notification) every 60-90 seconds. The desktop icons sometimes refresh/update when this happens.

This does NOT happen when the AC adapter is plugged in.

What I've tried

I've investigated extensively and found that:

1. Running sudo udevadm monitor shows constant drm/card1 change events:

KERNEL [1192.228486] change   /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm)
UDEV  [1192.261376] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm)
KERNEL [1231.346665] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm)
UDEV  [1231.370399] change/devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm)

2. Setting amdgpu.runpm=0 in GRUB does not resolve the issue
3. Disabling WiFi does not resolve the issue
4. power_dpm_force_performance_level remains unchanged during events
5. No error messages appear in dmesg

Workaround

Disabling system event sounds stops the audible notification:

gsettings set org.gnome.desktop.sound event-sounds false

However, the underlying issue (constant drm change events) persists.

Questions

1. Is this a known bug with the AMD Radeon 780M on battery power?
2. Has anyone else with recent AMD Ryzen AI laptops experienced this?
3. Is there a proper fix beyond disabling notification sounds?

I've already reported this as a bug to the AMD DRM developers, but I'm curious if others in the Ubuntu community have encountered this issue.

System info:

• Laptop: ASUS Vivobook 18 M1807HA
• GPU: AMD Radeon 780M (integrated)
• CPU: AMD Ryzen 7 260
• Kernel: 6.17.0-20-generic
• Distribution: Ubuntu 24.04

When I see a stable, well-accepted package like coreutils get removed, my initial reaction is something of shock. However, I know the danger of "speaking without knowledge" to use the biblical wording, and that the Ubuntu people know way more about this than I do, but:

Why did the Ubuntu team want to change from coreutils to uutils?

I know there's a big push for "safer" languages like rust right now, is simply that the reason? or is there a more complex reason? It seems like a mature project like coreutils would no longer have any memory leaks or similar errors that might make the Ubuntu team have second thoughts about using it. So, why?

Just a note for those who don't know, this is not in an LTS release yet, just in intern releases.

May 15, 2026 Upgraded to 26.04 with the same result. No sound and camera

Just upgraded my ubuntu 25.04 to 25.10 hoping that the problem with the sound and camera would be resolved. But sadly it's still the same.

My laptop is a brand new laptop Huawei BoDE-WXX9. However the sound and camera are not working. How to resolve this? Attached the images of the specifics and sound settings. Thanks in advance for any assistance

Hans schaap

My PDF thumbnails on the desktop have reverted to Adobe icons.

I have Evince installed and I am confident that the thumbnails are being generated because thumbnails show up in the Nautilus window for the desktop folder.

Two out of a dozen or more thumbnails are displayed on the desktop, as in this screenshot, so there's hope that something is working correctly, just not everything. One pdf link displays a thumbnail, one an icon.

I tried clearing out the thumbnail cache. They regenerate perfectly and display in Nautilus, but not on the desktop.

I tried switching my default PDF reader from Evince/Document View to Okular (my preferred viewer) and back with reboots in between.

This used to work fine, and stopped working after updates.

I am running Ubuntu 24.10 on a Dell XPS 13 and everything is up to date. I'm not a newbie but I'm not deeply into the technical details, so please give suggestion without assuming too much technical knowledge here.

I am using Crouton script to install Gnome Desktop, as that desktop environment is easy for me to work with, as I am completely blind and thus rely on ORCA screen reader to navigate. However, upon installing gnome desktop, I end up with the outdated Xenial environment, which is no longer supported.

Here is my step-by-step walkthrough of how I install Gnome Desktop using Crouton:

1. Enable Developer Mode

2. Download Crouton

3. Open a terminal by pressing Ctrl+Alt+T

4. Type shell and press Enter

5. Type:

   sudo install -Dt /usr/local/bin -m 755 ~/Downloads/crouton
   

   Press Enter

6. Type:

   sudo crouton -t gnome-desktop
   

   Press Enter

7. Wait for the installer to complete

8. Type a username and press Enter

9. Type a password and press Enter

10. Retype the password and press Enter

At this point, you can start Gnome by typing:

sudo startgnome

Exactly how do I install the latest version of Ubuntu using Crouton without getting Xenial every time I install Gnome Desktop?

I've been working on a bot for Discord which utilizes a PostgreSQL database and I'm trying to install it on a Vultr server (Ubuntu 20.04). Everything is working fine until I get to the part where I'm trying to create the database inside the server and I've been trying to follow multiple guides on how to set it up, but whenever I try to run any postgres/psql commands such as sudo -u postgres createuser --interactive I get an error saying could not change directory to "/root": Permission denied

When I try to log into a user I've created by using sudo -u araraura psql I get errors saying sudo: unknown user: araraura and sudo: unable to initialize policy plugin.

I've been at this for a day searching and looking for solutions on the internet, but I just couldn't find any solution that worked for me.

I bought a new HDD today, and I'd like to make a fresh install of Kubuntu. Unfortunately, the largest storage device I have is 2gb, which is not enough to hold the graphical live installer. But wait! I have a fully functional, running ubuntu installation. Surely I can re-run the live installer, install to my new HDD, and be on my way?

Except... I can't figure out how to. I've grabbed the ubiquity-frontend-kde package, which I think provides the installer I want. I tried launching it with ubiquity, ubiquity ubiquity-frontend-kde, and ubiquity --desktop kde_ui, guessing from this stack exchange answer. However, all my guesses either exit with code 1, or print some combination of the following lines:

/usr/bin/ubiquity:74: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
  import imp
The value for the SHELL variable was not found the /etc/shells file

This incident has been reported.

The wiki page is remarkably unhelpful on this front.

Does anyone know how I can run the live installer? 🤔

On my ubuntu 16.04 server, I've written two systemd services to start docker containers on system reboot. out of them, the initial one loads perfectly. The second service is dependent on the first service which never gets executed. However, If run 2nd service manually with sudo systemctl start swoop.app.service then It works fine.

here is first script

[Unit]
Description=Swoop MongoDb Server container
Requires=docker.service
After=docker.service

[Service]
TimeoutStartSec=0

ExecStart=/usr/bin/docker-compose -f /var/www/swoop/docker-compose.yml up -d mongo3 mongo2 mongo1 mongosetup

Restart=always
RestartSec=10s
Type=notify
NotifyAccess=all

[Install]
WantedBy=local.target

and the 2nd script is

[Unit]
Description=Swoop App Server container
Requires=docker.service
After=docker.service

Requires=swoop.mongo.service
After=swoop.mongo.service


[Service]
TimeoutStartSec=0
ExecStart=/usr/bin/docker-compose -f /var/www/swoop/docker-compose.yml up -d app

Restart=always
RestartSec=10s
Type=notify
NotifyAccess=all

[Install]
WantedBy=local.target

Why It is not able to detect swoop.mongo.service service has started or not.

Update:

Though service1 docker container's are running after the boot.
Service1 status

$ systemctl status swoop.mongo.service 
● swoop.mongo.service - Swoop MongoDb Server container
Loaded: loaded (/etc/systemd/system/swoop.mongo.service; disabled; vendor preset: enabled)
Active: inactive (dead)

Service2 status

$ systemctl status swoop.app.service 
● swoop.app.service - Swoop App Server container
Loaded: loaded (/etc/systemd/system/swoop.app.service; disabled; vendor preset: enabled)
Active: inactive (dead)

I've updated my Ubuntu 14.04 with GNOME/GTK 3.12 (because I want to test drive GNOME and play with some recent GNOME applications), but as a result, all GNOME application now use client side decorations also when running under my default KDE workspace.

Is there a way to disable the GTK+ 3.12 default use of CSD outside GNOME shell?

Does anyone know how to write a macro for a special character?

I know LibreOffice currently doesn't have a way to set a special character to a keyboard shortcut. However, I want to work around this with a macro. My plan is to create a macro for a special character then set a keyboard shortcut to that macro. Problem is I don't know the first thing about writing a macro. Any one have a template or something that works?

I also know about the compose key, but I guess I am lazy and want to actually insert special characters with as few keys as possible.