I'm installing Ubuntu for the first time and i had an issue with the password and needed to change it, i got into the recovery boot menue (the magenta one) and i cant drop to the desired option... Neither my keyboard or my mouse work and I'm at loss atm (I dound a similar question in the mint forum but they have server problems atm and the magenta is really horrible) Anyways, pls lmk your thoughts! I wouldve added a picture but I'm too new for that:/

Now, I upgraded to Lubuntu 24.04.

In my ~/.profile directory I have export GTK_CSD=1 . This does not work anymore. When I set the variable elsewhere to 1 this does not work as well. How to hide title bars in Lubuntu 24.04?

I’m experiencing random (average: once a day with ~8-10 hours of runtime/day), hard system freezes on Kubuntu that I haven’t been able to resolve despite extensive troubleshooting.

When the freeze happens:

• The screen stays on
• Mouse and keyboard completely stop responding
• No TTY switch works
• Requires hard power-off

There is no kernel panic, and logs around the time of the freeze are mostly empty or show only benign ACPI warnings.

System info

• Laptop: ASUS ROG Strix
• CPU: AMD Ryzen 9
• GPU: NVIDIA RTX 3060 (hybrid graphics, iGPU + dGPU)
• OS: Kubuntu (Plasma on X11)
• Display server: Xorg
• Session: Plasma (X11)
• plasmashell 5.27.12
• Qt: 5.15.13 | KDE Frameworks: 5.115.0 | kf5-config: 1.0

Symptoms

• Freezes happen randomly and almost always under light load.

• Not correlated with:

  • High CPU usage
  • Memory pressure
  • Battery events
  • Thermal throttling

• The system appears completely normal before freezing

Logs around the previous freezes

journalctl -p 3 -xb

ACPI BIOS Error (bug): Failure creating named object [\_TZ.TZ01], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GPP2], AE_NOT_FOUND
hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19)
bluetoothd: Sap driver initialization failed

dmesg -T --level=err,crit,alert,emerg

ACPI BIOS Error (bug): Failure creating named object [\_TZ.TZ01], AE_ALREADY_EXISTS
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GPP2], AE_NOT_FOUND
hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19)

No GPU crash, no kernel oops, no stack trace.

The last freeze logs

journalctl -p 3 -xb

Jan 04 00:19:46 user-kubuntu kernel: ACPI BIOS Error (bug): Failure creating named object [\_TZ.TZ01], AE_ALREADY_EXISTS (20240827/dswload2-326)
Jan 04 00:19:46 user-kubuntu kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20240827/psobject-220)
Jan 04 00:19:46 user-kubuntu kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GPP2], AE_NOT_FOUND (20240827/dswload2-162)
Jan 04 00:19:46 user-kubuntu kernel: ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20240827/psobject-220)
Jan 04 00:19:46 user-kubuntu kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GPP2.WWAN], AE_NOT_FOUND (20240827/dswload2-162)
Jan 04 00:19:46 user-kubuntu kernel: ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20240827/psobject-220)
Jan 04 00:19:46 user-kubuntu kernel: hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19)
Jan 04 00:19:46 user-kubuntu kernel:
Jan 04 00:19:49 user-kubuntu bluetoothd[1553]: profiles/sap/server.c:sap_server_register() Sap driver initialization failed.
Jan 04 00:19:49 user-kubuntu bluetoothd[1553]: sap-server: Operation not permitted (1)
Jan 04 00:19:49 user-kubuntu bluetoothd[1553]: Failed to set mode: Failed (0x03)
Jan 04 00:19:51 user-kubuntu canonical-livepatch.canonical-livepatchd[1834]: refresh patch failed: livepatch check failed: POST request to "https://livepatch.canonical.com/v1/client/2b643>
Jan 04 00:19:51 user-kubuntu canonical-livepatch.canonical-livepatchd[1834]: Task "refresh" returned an error: livepatch check failed: POST request to "https://livepatch.canonical.com/v1/>
Jan 04 00:20:09 user-kubuntu sddm-helper[2213]: gkr-pam: unable to locate daemon control file
Jan 04 00:20:13 user-kubuntu bluetoothd[1553]: Failed to set mode: Failed (0x03)

cat /var/log/Xorg.0.log | grep -i EE

[     8.140] (EE) open /dev/dri/card0: No such file or directory

[     9.522] (EE) AMDGPU(0): drmmode_do_crtc_dpms cannot get last vblank counter

Power and resource state before freeze

upower -d

• System on AC power
• Battery at ~80% (hard maximum limit)
• No power warnings
• No suspend or resume activity

top

• CPU idle ~98%
• Plenty of free RAM
• No runaway processes

What I have tried

Kernel parameters

I currently boot with:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash amd_iommu=off amdgpu.runpm=0"

I disabled IOMMU because earlier freezes showed AMD-Vi page faults. Those errors are now gone, but the freezes continue.

Drivers

I tried sudo ubuntu-drivers autoinstall with no improvement.

Audio / other subsystems

• Earlier freezes showed snd_hda_intel errors: no longer present
• ACPI errors persist, but from what I understand, these are common ASUS firmware warnings

Any guidance would be greatly appreciated.

I have installed Windows 11 and Ubuntu 24.04.3 LTS. Both systems work properly. Switching from Ubuntu to Windows is no problem. But when switching from Windows to Ubuntu the boot process stops. The splash screen shows 'UBUNTU' and a spinning wheel, that stops spinning. After switching the computer off and on again Ubuntu boots without problems.

Here my system details:

## Hardware Information:

- **Hardware Model:** Gigabyte Technology Co., Ltd. B760 DS3H DDR4

- **Memory:** 16,0 GiB

- **Processor:** 12th Gen Intel® Core™ i5-12400F × 12

- **Graphics:** NVIDIA GeForce RTX™ 4070

- **Disk Capacity:** 3,3 TB

## Software Information:

- **Firmware Version:** F8b

- **OS Name:** Ubuntu 24.04.3 LTS

- **OS Build:** (null)

- **OS Type:** 64-bit

- **GNOME Version:** 46

- **Windowing System:** X11

- **Kernel Version:** Linux 6.8.0-90-generic

What I found about this issue is that it is related to the GPU being left in bad power state by Windows. They recommended to disable Windows Fast Startup (powercfg.cpl → Choose what the power buttons do → Change settings that are currently unavailable → uncheck "Turn on fast startup). But this didn’t solve the problem.

To find out what’s going wrong I switched to verbose boot: in GRUB menu I selected UBUNTU, pressed „e“ and removed ‚quiet splash‘ in the line starting with ‚linux‘, then Ctrl+X. By this I found out the boot process stops right after "Started nvidia-persistenced.service - NVIDIA Persitance Deamon.". According to my findings this is a known NVIDIA + systemd boot deadlock after a Windows boot and on RTX 40-series. The system does not crash — it waits forever for NVIDIA userspace ↔ kernel GPU initialization.

Can you help me to fix this issue?

I need to list the names and sizes of elements in a .tar file using the terminal. I've used the tvf option, but it seems to give me too much unnecessary information. Any help will be greatly appreciated

On Ubuntu noble, connected over xrdp, I am spontaniously and frequently prompted for my password. This sometimes includes multiple prompts in quick succession.

The machine is a VM running in proxmox, and the issue does not occur when logging in via lightdm over a noVNC console.

reading polkitd entries in the journal, I can see the auth requests are coming from Flatpak.

Symptoms:

• Flatpak operations such as repository refresh and appstream updates repeatedly trigger polkit authentication dialogs.

• The prompts occurr even though the user is in the sudo group.

• Polkit logs show repeated ONE-SHOT authorisations for Flatpak actions such as:

  • org.freedesktop.Flatpak.modify-repo

  • org.freedesktop.Flatpak.appstream-update

Example journal entries:

<USERNAME>@<HOSTNAME>:~$ journalctl -u polkit.service -b
Jan 02 14:42:52 <HOSTNAME> polkitd[617]: Operator of unix-session:c3 FAILED to authenticate to gain authorization for action org.freedesktop.Flatpak.modify-repo for system-bus-name::1.225 [<unknown>] (owned by unix-user:<USERNAME> )
Jan 02 14:43:15 <HOSTNAME> polkitd[617]: Operator of unix-session:c3 successfully authenticated as unix-user:<USERNAME>  to gain ONE-SHOT authorization for action org.freedesktop.Flatpak.appstream-update for system-bus-name::1.228 [flatpak-update-worker] (owned by unix-user:<USERNAME> )

A polkit rule already existed to allow Flatpak actions for sudo users, but it did not prevent the repeated prompts.

Why does this happen, and how can the Flatpak polkit rules be adjusted to stop the repeated authentication requests?

I have ubuntu 24.04.3 LTS Noble I have successfully changed the icons to prove they were working. However, I have a WD Elements USB drive plugged in. When it is UNmounted, the icon appears. When I mount the device, it's icon disappears. It becomes a black icon outline with nothing appearing in it. The device works when mounted, but I can't see the icon. Once unmounted, it shows up.

Rate me as a linux noob. Many years of Windows...trying to get rid of that habit.

Has anyone else gotten updates for Ubuntu recently? I noticed that my laptop hadn't prompted for updates recently and there didn't seem to be any available on the servers that I spot-checked either. Everything seems to be working fine with apt, just nothing available. I checked the history on a couple systems and the most recent datestamp I've found on installed updates as 12/23. It would be helpful to know if anyone else is experiencing this as well, or if this is something specific to these systems. Thanks! Jared

I often run browser and VS Code at the same time. I'm using Ubuntu 24.04.03 LTS. I mostly use VS Code for running package manager especially pnpm, when it runs, my fan start running and by time the laptop become lag and eventually become freeze. What is truly happen? is it hardware issue or something else?

I walked away from my computer while an upgrade from 25.04 to 25.10 was running, when I got back my terminal wass closed (some kind of crash?).

How can I assess the current state of my Ubuntu installation? What is my next step to do to avoid a broken system?

Current status:

$ do-release-upgrade
Checking for a new Ubuntu release
No new release found.

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 25.10
Release:        25.10
Codename:       questing

$ sudo apt update
bash: sudo: command not found

$ apt update
Error: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
Error: Unable to lock directory /var/lib/apt/lists/
Warning: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches (13: Permission denied)
Warning: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - RemoveCaches (13: Permission denied)

$ shutdown -r now
Operation inhibited by "UpdateManager" (PID 35869 "n/a", user root), reason is "Updating System".
Operation inhibited by "APT" (PID 37277 "questing", user root), reason is "APT is installing or removing packages".
Please retry operation after closing inhibitors and logging out other users.
'systemd-inhibit' can be used to list active inhibitors.
Alternatively, ignore inhibitors and users with 'systemctl reboot -i'.

EDIT: I was running do-release-upgrade in a graphical session in ghostty terminal. I have not rebooted my machine (in the fear that it will not start if halfway through the upgrade).

My $PATH looks ok, but not having sudo is a problem as I can't install anything nor kill the hanging apt process.

$ echo $PATH
/home/david/.local/bin:/home/david/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

~$ ps aux | grep 37277
root       37277  0.2  1.5 482708 213764 ?       S    13:14   0:03 /usr/bin/python3 -s /tmp/ubuntu-release-upgrader-zvwe8gx0/questing --frontend=DistUpgradeViewText

$ kill 37277
bash: kill: (37277) - Operation not permitted

I'm not very good at linux stuff, so below are mostly writen by AI based on my trouble shooting so far.

I'm unable to use the touchpad on my Lenovo 300w Gen 3 convertible laptop under Ubuntu. The system identifies it as a touchscreen device (Capabilities: touch) instead of a touchpad (pointer), so it cannot control the cursor. Extensive troubleshooting points to a combination of a potential ACPI firmware bug and missing driver support.

System & Hardware Details

• Laptop Model: Lenovo 300w Gen 3 (AMD 3015e)

• OS: Ubuntu 25.10

• Kernel: Kernel: 6.17.0-8-generic (as provided by the default Ubuntu 25.10 repositories)

• Desktop Session: Wayland ($XDG_SESSION_TYPE outputs wayland)

• Touchpad Hardware ID: ELAN901C:00 04F3:2D65

Core Problem & Diagnostics

The touchpad device is consistently recognized with Capabilities: touch instead of pointer. Here is the relevant output:

bash

$ sudo libinput list-devices | grep -A10 "ELAN901C"
Device:                  ELAN901C:00 04F3:2D65
Kernel:                  /dev/input/event4
Id:                      i2c:04f3:2d65
Group:                   7
Seat:                    seat0, default
Size:                    262x141mm
Capabilities:            touch 
Tap-to-click:            n/a
Tap-and-drag:            n/a
...
Device:                  ELAN901C:00 04F3:2D65 Stylus
Kernel:                  /dev/input/event11
Id:                      i2c:04f3:2d65
Group:                   7
Seat:                    seat0, default
Size:                    256x144mm
Capabilities:            tablet 
...

Crucially, there is no separate pointer-capability device for the touchpad.

Key Evidence: It's a Driver/Firmware Issue

1. Works under FreeBSD: The same hardware works perfectly as a touchpad under FreeBSD 15.0. This confirms the touchpad hardware is functional, isolating the issue to the Linux kernel/drivers.

2. ACPI BIOS Bug: The kernel logs show a clear ACPI warning related to the CDAT table, which is likely interfering with proper device enumeration:

   bash

   $ sudo dmesg | grep -i "ACPI.*CDAT\|ACPI.*Warning"
   [    0.313314] ACPI BIOS Error (bug): Failure creating named object [\CDAT], AE_ALREADY_EXISTS
   [    0.313344] ACPI Warning: NsLookup: Type mismatch on CDAT (Integer), searching for (RegionField)
   

3. Community Research: For a similar touchpad (ELAN0642) on the same laptop model, other users have found that newer Elantech IDs are not listed in the upstream elan_i2c kernel driver's supported IDs, and that the ACPI bug might be preventing correct driver binding.

What I Have Tried (All Failed)

1. Kernel Versions: Tried both 6.17 and older 6.8 LTS kernels. No change.

2. Udev Rules: Attempted to set ID_INPUT_TOUCHPAD=1, EVDEV_ABS axes. Results in touch or a "kernel bug: device failed touchpad sanity checks" error.

3. Kernel Module Parameters:

   • i2c_hid.quirks and i2c_hid.acpi_match_vendor_id (ignored in kernel 6.17).

   • options hid-multitouch quirks=0x0400:0x04F3:0x2D65 (and variant 0x0008) via /etc/modprobe.d/. No effect.

4. Clean State: All custom configurations have been removed. The problem persists in a default Ubuntu installation.

~~My~~ AI's Request

Given the ACPI bug and the likely missing driver support, my specific questions are:

• Is there a known DKMS patch or a mainline kernel commit that adds support for the ELAN901C:00 04F3:2D65 (or similar newer Elantech) touchpad?

• Could the ACPI CDAT warning be the primary blocker? Is there a known kernel parameter or workaround to mitigate this specific firmware bug?

• What is the recommended way to report this upstream? Should it be filed against the i2c_hid/hid-multitouch drivers, the elan_i2c driver (if that's the correct one), or the ACPI subsystem?

BIOS have the most recent update by Lenovo

Thank you for reading through all this so far, I'd like to explore the possibility of gettitng this fixed. So any input would help me and AI's trouble shooting. Thank you for your time and expertise!

I use a GUI tool Lxqt-config-input

I checked the option Mouse and Touchpad -> Scrolling: Edge.

How to force these settings permanently? I'm on Lubuntu 22.04.

I am using a fresh install of Kubuntu 25.10. But after booting, I get a black screen. Then, I can press Ctrl+Alt+F3 to get a console. After logging in, I execute

startplasma-wayland

and the Desktop loads...
But without this manual procedure nothing happens and the screen stays black.

So my question is:
What breaks the automatism and how can I fix it?
And has it anything to do with the NVidia drivers (I'm using nvidia-driver-580-open)?

I’m running Ubuntu 22.04 on my ASUS Zephyrus G14 with a Realtek ALC285 sound card. My built-in speaker sound is high-pitched and kinda robotic. Sound through HDMI works correctly. Some things I've tried are changing the sample rate, different alsa model overrides, overriding the speaker mapping with hdajackretask, increasing volume, increasing base volume with an equalizer.

Has anyone gotten the sound to work well?

Specs:

Laptop: ASUS Zephyrus G14
Audio Codec: Realtek ALC285
Ubuntu Version: 22.04 LTS
Kernel: 6.8.0-52-generic

Default Sink (pactl list sinks):

Sink #63
    State: IDLE
    Name: alsa_output.pci-0000_65_00.6.HiFi__hw_Generic_1__sink
    Description: Family 17h/19h HD Audio Controller Speaker + Headphones
    Driver: PipeWire
    Sample Specification: s32le 2ch 48000Hz
    Channel Map: front-left,front-right
    Owner Module: 4294967295
    Mute: no
    Volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
            balance 0.00
    Base Volume: 65536 / 100% / 0.00 dB
    Monitor Source: alsa_output.pci-0000_65_00.6.HiFi__hw_Generic_1__sink.monitor
    Latency: 0 usec, configured 0 usec
    Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
    Properties:
        alsa.card = "2"
        alsa.card_name = "HD-Audio Generic"
        alsa.class = "generic"
        alsa.components = "HDA:10ec0285,10431e83,00100002"
        alsa.device = "0"
        alsa.driver_name = "snd_hda_intel"
        alsa.id = "Generic_1"
        alsa.long_card_name = "HD-Audio Generic at 0xdd6c0000 irq 104"
        alsa.mixer_device = "_ucm0004.hw:Generic_1"
        alsa.mixer_name = "Realtek ALC285"
        alsa.name = "ALC285 Analog"
        alsa.resolution_bits = "16"
        alsa.subclass = "generic-mix"
        alsa.subdevice = "0"
        alsa.subdevice_name = "subdevice #0"
        api.alsa.card.longname = "HD-Audio Generic at 0xdd6c0000 irq 104"
        api.alsa.card.name = "HD-Audio Generic"
        api.alsa.open.ucm = "true"
        api.alsa.path = "hw:Generic_1"
        api.alsa.pcm.card = "2"
        api.alsa.pcm.stream = "playback"
        audio.channels = "2"
        audio.position = "FL,FR"
        card.profile.device = "0"
        device.api = "alsa"
        device.class = "sound"
        device.id = "54"
        device.profile.description = "Speaker + Headphones"
        device.profile.name = "HiFi: hw:Generic_1: sink"
        device.routes = "2"
        factory.name = "api.alsa.pcm.sink"
        media.class = "Audio/Sink"
        device.description = "Family 17h/19h HD Audio Controller"
        node.name = "alsa_output.pci-0000_65_00.6.HiFi__hw_Generic_1__sink"
        node.nick = "ALC285 Analog"
        node.pause-on-idle = "false"
        object.path = "alsa:pcm:2:hw:Generic_1:playback"
        priority.driver = "1000"
        priority.session = "1000"
        factory.id = "18"
        clock.quantum-limit = "8192"
        client.id = "41"
        node.driver = "true"
        factory.mode = "merge"
        audio.adapt.follower = ""
        library.name = "audioconvert/libspa-audioconvert"
        object.id = "63"
        object.serial = "63"
        node.max-latency = "16384/48000"
        api.alsa.period-size = "1024"
        api.alsa.period-num = "32"
        api.alsa.headroom = "0"
        api.acp.auto-port = "false"
        api.acp.auto-profile = "false"
        api.alsa.card = "2"
        api.alsa.use-acp = "true"
        api.dbus.ReserveDevice1 = "Audio2"
        device.bus = "pci"
        device.bus_path = "pci-0000:65:00.6"
        device.enum.api = "udev"
        device.icon_name = "audio-card-analog-pci"
        device.name = "alsa_card.pci-0000_65_00.6"
        device.nick = "HD-Audio Generic"
        device.plugged.usec = "6415867"
        device.product.id = "0x15e3"
        device.product.name = "Family 17h/19h HD Audio Controller"
        device.subsystem = "sound"
        sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:65:00.6/sound/card2"
        device.vendor.id = "0x1022"
        device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
        device.string = "2"
    Ports:
        [Out] Speaker: Speaker (type: Speaker, priority: 100, availability unknown)
        [Out] Headphones: Headphones (type: Headphones, priority: 200, availability group: Headphone, not available)
    Active Port: [Out] Speaker
    Formats:
        pcm

ALSA modules (cat /proc/asound/modules):

0 snd_hda_intel
1 snd_hda_intel
2 snd_hda_intel
3 snd_acp_legacy_mach

ALSA cards (cat /proc/asound/cards):

0 [NVidia         ]: HDA-Intel - HDA NVidia
                     HDA NVidia at 0xdd080000 irq 102
1 [Generic        ]: HDA-Intel - HD-Audio Generic
                     HD-Audio Generic at 0xdd6c8000 irq 103
2 [Generic_1      ]: HDA-Intel - HD-Audio Generic
                     HD-Audio Generic at 0xdd6c0000 irq 104
3 [acppdmmach     ]: acp-pdm-mach - acp-pdm-mach
                     ASUSTeKCOMPUTERINC.-ROGZephyrusG16GA605WI_GA605WI-1.0-GA605WI

Audio system logs(dmesg | grep -i audio):

[    5.302027] snd_hda_intel 0000:64:00.1: Handle vga_switcheroo audio client
[    5.302446] snd_hda_intel 0000:65:00.1: Handle vga_switcheroo audio client
[    5.327178] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:08.1/0000:65:00.1/sound/card1/input22
[    5.328109] snd_hda_codec_realtek hdaudioC2D0: autoconfig for ALC285: line_outs=2 (0x17/0x14/0x0/0x0/0x0) type:speaker
[    5.328116] snd_hda_codec_realtek hdaudioC2D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    5.328118] snd_hda_codec_realtek hdaudioC2D0:    hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[    5.328120] snd_hda_codec_realtek hdaudioC2D0:    mono: mono_out=0x0
[    5.328121] snd_hda_codec_realtek hdaudioC2D0:    inputs:
[    5.328123] snd_hda_codec_realtek hdaudioC2D0:      Internal Mic=0x13
[    5.328124] snd_hda_codec_realtek hdaudioC2D0:      Internal Mic=0x12
[    6.417695] input: HD-Audio Generic Headphone as /devices/pci0000:00/0000:00:08.1/0000:65:00.6/sound/card2/input27

Alsamixer:

Pavucontrol:

I want to install virtualbox on Ubuntu24.04 LTS but I didn't find virtualbox Appropriate package for Ubuntu 24.04 and I downloaded virtualbox for jammy and and try to install it and I get this output

arman@salar:~/Downloads$ sudo apt install ./virtualbox-7.0_7.0.16-162802~Ubuntu~jammy_amd64.deb 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Note, selecting 'virtualbox-7.0' instead of './virtualbox-7.0_7.0.16-162802~Ubuntu~jammy_amd64.deb'
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:
 virtualbox-7.0 : Depends: libvpx7 (>= 1.10.0) but it is not installable
                  Recommends: libsdl-ttf2.0-0 but it is not going to be installed
                  Recommends: gcc but it is not going to be installed
                  Recommends: make or
                              build-essential but it is not going to be installed or
                              dpkg-dev but it is not going to be installed
                  Recommends: binutils but it is not going to be installed
E: Unable to correct problems, you have held broken packages

is there any way to bypass this error or we have to wait for virtualbox official site to release appropriate package for ubuntu24.04TS ?

I've had this problem now for several months and haven't been able to find a suitable solution. When searching I find a lot of very old posts about the problem but none seem to related. Mostly talk about a bug in older versions. It used to work fine but at some point it broke, maybe after an update but can't say for certain.

Whenever I try to Open, "show the graphical console," a KVM in virt-manager I get the following error: Error connecting to graphical console: could not get a reference to type class

What I've tried:

1. Tried creating a new test KVM and had the same error message when trying to Open.
2. Purge and reinstall virt-manager
3. make sure that I'm in the libvirt group
4. Run virt-manager from the terminal with sudo

I'm a novice Linux user at best and I don't know where to turn. And help to point me in the right direction would be appreciated.

Update 1

After a lot of searching, purging and reinstalling I believe that I have narrowed the problem down to virt-viewer. Whenever running virt-viewer from the command line I get the following error: virt-viewer: symbol lookup error: /lib/x86_64-linux-gnu/libusbredirhost.so.1: undefined symbol: libusb_transfer_set_stream_id I get this error regardless of the virt-viewer command, ie virt-viewer -h , version ect.

I have a strong suspicion that the root cause was when I was trying to get some old software working for my LogiTech mouse and keyboard working. Installing an older lib or something possibly?

Session messenger https://getsession.org is great, yet for some releases of Ubuntu and for Whonix in particular the installation is way too frustrating. In particular Both Ubuntu and Whonix don't allow installing this messenger by default due to absence of its repository in the list of approved repos. Is there any easy way to solve the problem?

When I am trying to connect to remote ssh in vscode I am getting log like this

[23:15:44.114] Log Level: 2
[23:15:44.116] remote-ssh@0.90.1
[23:15:44.116] linux x64
[23:15:44.127] SSH Resolver called for "ssh-remote+172.16.26.73", attempt 1
[23:15:44.128] "remote.SSH.useLocalServer": true
[23:15:44.129] "remote.SSH.path": undefined
[23:15:44.129] "remote.SSH.configFile": undefined
[23:15:44.130] "remote.SSH.useFlock": true
[23:15:44.130] "remote.SSH.lockfilesInTmp": false
[23:15:44.130] "remote.SSH.localServerDownload": auto
[23:15:44.130] "remote.SSH.remoteServerListenOnSocket": false
[23:15:44.131] "remote.SSH.showLoginTerminal": false
[23:15:44.131] "remote.SSH.defaultExtensions": []
[23:15:44.131] "remote.SSH.loglevel": 2
[23:15:44.131] "remote.SSH.enableDynamicForwarding": true
[23:15:44.132] "remote.SSH.enableRemoteCommand": false
[23:15:44.132] "remote.SSH.serverPickPortsFromRange": {}
[23:15:44.132] "remote.SSH.serverInstallPath": {}
[23:15:44.148] SSH Resolver called for host: 172.16.26.73
[23:15:44.148] Setting up SSH remote "172.16.26.73"
[23:15:44.153] Acquiring local install lock: /tmp/vscode-remote-ssh-c6eecf9c-install.lock
[23:15:44.159] Looking for existing server data file at /home/sinanck/.config/Code/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-c6eecf9c-d045a5eda657f4d7b676dedbfa7aab8207f8a075-0.90.1/data.json
[23:15:44.159] Using commit id "d045a5eda657f4d7b676dedbfa7aab8207f8a075" and quality "stable" for server
[23:15:44.165] Install and start server if needed
[23:15:44.171] PATH: /home/sinanck/.local/bin:/home/sinanck/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin
[23:15:44.171] Checking ssh with "ssh -V"
[23:15:44.208] > OpenSSH_8.9p1 Ubuntu-3, OpenSSL 3.0.2 15 Mar 2022

[23:15:44.216] askpass server listening on /run/user/1000/vscode-ssh-askpass-71e437fc181e2f9984902492aa901cc6d17248dd.sock
[23:15:44.216] Spawning local server with {"serverId":1,"ipcHandlePath":"/run/user/1000/vscode-ssh-askpass-d8d3a51da8df9c70d2191a15cbc3bf8ea4922d52.sock","sshCommand":"ssh","sshArgs":["-v","-T","-D","34539","-o","ConnectTimeout=15","172.16.26.73"],"serverDataFolderName":".vscode-server","dataFilePath":"/home/sinanck/.config/Code/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-c6eecf9c-d045a5eda657f4d7b676dedbfa7aab8207f8a075-0.90.1/data.json"}
[23:15:44.217] Local server env: {"SSH_AUTH_SOCK":"/run/user/1000/keyring/ssh","SHELL":"/bin/bash","DISPLAY":":0","ELECTRON_RUN_AS_NODE":"1","SSH_ASKPASS":"/home/sinanck/.vscode/extensions/ms-vscode-remote.remote-ssh-0.90.1/out/local-server/askpass.sh","VSCODE_SSH_ASKPASS_NODE":"/snap/code/111/usr/share/code/code","VSCODE_SSH_ASKPASS_EXTRA_ARGS":"--ms-enable-electron-run-as-node","VSCODE_SSH_ASKPASS_MAIN":"/home/sinanck/.vscode/extensions/ms-vscode-remote.remote-ssh-0.90.1/out/askpass-main.js","VSCODE_SSH_ASKPASS_HANDLE":"/run/user/1000/vscode-ssh-askpass-71e437fc181e2f9984902492aa901cc6d17248dd.sock"}
[23:15:44.227] Spawned 477089
[23:15:44.496] > local-server-1> Spawned ssh, pid=477098
[23:15:44.503] stderr> OpenSSH_8.9p1 Ubuntu-3, OpenSSL 3.0.2 15 Mar 2022
[23:15:44.542] stderr> debug1: Server host key: ssh-ed25519 SHA256:ZYvzW+Upd0FIkDzmOcNVB2yCWZCHQN8GqKZRybC7QZQ
[23:15:44.839] Got askpass request: {"request":"muhammed_1901cs38@172.16.26.73's password:"}
[23:15:44.840] Showing password prompt
[23:15:44.841] Listening for interwindow password on /run/user/1000/vscode-ssh-askpass-1742cf921041d3dcec39277056d239200013e310.sock
[23:15:44.841] Writing password prompt to globalState
[23:15:47.444] Got password response
[23:15:47.445] Interactor gave response: *********
[23:15:47.446] Cleaning up other-window auth server
[23:15:47.500] stderr> Authenticated to 172.16.26.73 ([172.16.26.73]:22) using "password".
[23:15:48.066] > Welcome to Ubuntu 20.04.2 LTS (GNU/Linux 5.11.0-37-generic x86_64)
> 
>  * Documentation:  https://help.ubuntu.com
>  * Management:     https://landscape.canonical.com
>  * Support:        https://ubuntu.com/advantage
> 
> 458 updates can be applied immediately.
> 298 of these updates are standard security updates.
> To see these additional updates run: apt list --upgradable
> 
> 
> The list of available updates is more than a week old.
> To check for new updates run: sudo apt update
> Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings
> 
> Your Hardware Enablement Stack (HWE) is supported until April 2025.
[23:15:48.217] > ready: 5db122392114
[23:15:48.235] > Linux 5.11.0-37-generic #41~20.04.2-Ubuntu SMP Fri Sep 24 09:06:38 UTC 2021
[23:15:48.236] Platform: linux
[23:15:48.243] > /bin/bash
[23:15:48.244] Shell: bash
[23:15:48.244] Creating bash subshell inside "bash"
[23:15:48.294] > bash version:  5.0.17(1)-release
[23:15:48.312] > 5db122392114: running
[23:15:48.463] > Acquiring lock on /home/muhammed_1901cs38/.vscode-server/bin/d045a5eda657f4d7b676dedbfa7aab8207f8a075/vscode-remote-lock.muhammed_1901cs38.d045a5eda657f4d7b676dedbfa7aab8207f8a075
[23:15:48.468] > Installation already in progress...
[23:15:48.473] > If you continue to see this message, you can try toggling the remote.SSH.useFlock setting
> 5db122392114: start
> exitCode==24==
> listeningOn====
> osReleaseId==ubuntu==
> arch==x86_64==
> tmpDir==/run/user/1055==
> platform==linux==
> unpackResult====
> didLocalDownload==0==
> downloadTime====
> installTime====
> extInstallTime====
> serverStartTime====
> 5db122392114: end
[23:15:48.474] Received install output: 
exitCode==24==
listeningOn====
osReleaseId==ubuntu==
arch==x86_64==
tmpDir==/run/user/1055==
platform==linux==
unpackResult====
didLocalDownload==0==
downloadTime====
installTime====
extInstallTime====
serverStartTime====

[23:15:48.476] Server installation process already in progress - waiting and retrying
[23:15:48.477] Terminating local server
[23:15:48.494] Local server exit: 15
[23:15:49.485] askpass server listening on /run/user/1000/vscode-ssh-askpass-63095919f2fd495c76329ec9ee199fdc4db10c0e.sock
[23:15:49.485] Spawning local server with {"serverId":2,"ipcHandlePath":"/run/user/1000/vscode-ssh-askpass-968db2b9bd48590c4ec997d199ca9aec30e5be83.sock","sshCommand":"ssh","sshArgs":["-v","-T","-D","34539","-o","ConnectTimeout=15","172.16.26.73"],"serverDataFolderName":".vscode-server","dataFilePath":"/home/sinanck/.config/Code/User/globalStorage/ms-vscode-remote.remote-ssh/vscode-ssh-host-c6eecf9c-d045a5eda657f4d7b676dedbfa7aab8207f8a075-0.90.1/data.json"}
[23:15:49.486] Local server env: {"SSH_AUTH_SOCK":"/run/user/1000/keyring/ssh","SHELL":"/bin/bash","DISPLAY":":0","ELECTRON_RUN_AS_NODE":"1","SSH_ASKPASS":"/home/sinanck/.vscode/extensions/ms-vscode-remote.remote-ssh-0.90.1/out/local-server/askpass.sh","VSCODE_SSH_ASKPASS_NODE":"/snap/code/111/usr/share/code/code","VSCODE_SSH_ASKPASS_EXTRA_ARGS":"--ms-enable-electron-run-as-node","VSCODE_SSH_ASKPASS_MAIN":"/home/sinanck/.vscode/extensions/ms-vscode-remote.remote-ssh-0.90.1/out/askpass-main.js","VSCODE_SSH_ASKPASS_HANDLE":"/run/user/1000/vscode-ssh-askpass-63095919f2fd495c76329ec9ee199fdc4db10c0e.sock"}
[23:15:49.492] Spawned 477115
[23:15:49.706] > local-server-2> Spawned ssh, pid=477123
[23:15:49.711] stderr> OpenSSH_8.9p1 Ubuntu-3, OpenSSL 3.0.2 15 Mar 2022
[23:15:49.784] stderr> debug1: Server host key: ssh-ed25519 SHA256:ZYvzW+Upd0FIkDzmOcNVB2yCWZCHQN8GqKZRybC7QZQ
[23:15:50.066] Got askpass request: {"request":"muhammed_1901cs38@172.16.26.73's password:"}
[23:15:50.067] Showing password prompt
[23:15:50.068] Listening for interwindow password on /run/user/1000/vscode-ssh-askpass-a5b7bc9fb6026360e91b2ea2838c42d95db8d022.sock
[23:15:50.068] Writing password prompt to globalState

Linux rudy 5.8.0-59-generic #66~20.04.1-Ubuntu SMP Thu Jun 17 11:14:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

as far as I know:
lsb_release -a

LSB Version: core-11.1.0ubuntu2-noarch:printing-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch Distributor ID: Ubuntu Description: Ubuntu 20.04.2 LTS Release: 20.04 Codename: focal

Hi Community,

just wondering if there is available a comprehensive xrdp manual other than man xrdp/xrdp.ini/sesman and so on? The XRDP service is listening on tcp6 and I do not know who is telling it to do so. The listen port is the default 3389 on 0.0.0.0

tcp6       0      0 ::1:3350                :::*                    LISTEN      60627/xrdp-sesman   
tcp6       0      0 :::3389                 :::*                    LISTEN      60638/xrdp

On the other hand, it is listening on 0.0.0.0: 3389. Are these related somehow? netstat listen on IPv6:3389 or xrdp status listen on 0.0.0.0 3389?

systemctl status xrdp
● xrdp.service - xrdp daemon
     Loaded: loaded (/lib/systemd/system/xrdp.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2021-06-30 21:30:44 EDT; 14h ago
       Docs: man:xrdp(8)
             man:xrdp.ini(5)
   Main PID: 60638 (xrdp)
      Tasks: 1 (limit: 6920)
     Memory: 1.6M
     CGroup: /system.slice/xrdp.service
             └─60638 /usr/sbin/xrdp

Jun 30 21:30:43 rudy xrdp[60637]: (60637)(139653515220800)[INFO ] address [0.0.0.0] port [3389] mode 1
Jun 30 21:30:43 rudy xrdp[60637]: (60637)(139653515220800)[INFO ] listening to port 3389 on 0.0.0.0
Jun 30 21:30:43 rudy xrdp[60637]: (60637)(139653515220800)[INFO ] xrdp_listen_pp done
Jun 30 21:30:43 rudy xrdp[60637]: (60637)(139653515220800)[DEBUG] Closed socket 7 (AF_INET6 :: port 3389)
Jun 30 21:30:43 rudy systemd[1]: xrdp.service: Can't open PID file /run/xrdp/xrdp.pid (yet?) after start: Operation not permitted
Jun 30 21:30:44 rudy systemd[1]: Started xrdp daemon.
Jun 30 21:30:45 rudy xrdp[60638]: (60638)(139653515220800)[INFO ] starting xrdp with pid 60638
Jun 30 21:30:45 rudy xrdp[60638]: (60638)(139653515220800)[INFO ] address [0.0.0.0] port [3389] mode 1
Jun 30 21:30:45 rudy xrdp[60638]: (60638)(139653515220800)[INFO ] listening to port 3389 on 0.0.0.0
Jun 30 21:30:45 rudy xrdp[60638]: (60638)(139653515220800)[INFO ] xrdp_listen_pp done

which conf file these following xrdp options can be changed and what is the syntax?
xrdp -v

xrdp 0.9.12
  A Remote Desktop Protocol Server.
  Copyright (C) 2004-2018 Jay Sorg, Neutrino Labs, and all contributors.
  See https://github.com/neutrinolabs/xrdp for more information.

  Configure options:
      --enable-ipv6
      --enable-jpeg
      --enable-fuse
      --enable-rfxcodec
      --enable-opus
      --enable-painter
      --enable-vsock
      --build=x86_64-linux-gnu
      --prefix=/usr
      --includedir=${prefix}/include
      --mandir=${prefix}/share/man
      --infodir=${prefix}/share/info
      --sysconfdir=/etc
      --localstatedir=/var
      --disable-silent-rules
      --libdir=${prefix}/lib/x86_64-linux-gnu
      --libexecdir=${prefix}/lib/x86_64-linux-gnu
      --disable-maintainer-mode
      --disable-dependency-tracking
      --with-socketdir=/run/xrdp/sockdir
      build_alias=x86_64-linux-gnu
      CFLAGS=-g -O2 -fdebug-prefix-map=/build/xrdp-GJgww4/xrdp-0.9.12=. -fstack-protector-strong -Wformat -Werror=format-security 
      LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -Wl,--as-needed
      CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2 
      PKG_CONFIG_PATH=/build/xrdp-GJgww4/xrdp-0.9.12/pkgconfig

  Compiled with OpenSSL 1.1.1f  31 Mar 2020

IPv6 is enabled system-wide:

net.ipv6.conf.all.disable_ipv6 = 0  
net.ipv6.conf.default.disable_ipv6 = 0

I'm on stock Ubuntu 20.04.2, and I have managed to install the latest / current Gimp with Flatpak: it was the 2.10.24 version at the time.

However, there are a few issues with the 2.10 line that I can't seem to be able to resolve.

For this reason, I would like to install Gimp 2.8.

I know that that older Gimp version may rely on an older Python version as well, so installing the whole thing with Flatpak seems to be handy, as it will be standalone (isolated from the OS) and can use its own (older) Python version without any complication at all.

But I can't seem to be able to find out how to even list the currently supported Gimp package versions with Flatpak, let alone installing it.

So please: how can I see which Gimp versions (apart from the most recent one) are installable with Flatpak currently, and how can I install a specific version?

(Also, can it complicate things that I already have another (more recent) Gimp version installed with Flatpak? So, can I have two versions parallel, or would I have to delete the more recent one first in order to install the older one?)

Update:

I have followed the guidance in @wizardpurple's answer, and have found the following:

• This is Gimp's Flathub page.
• This is the Gimp flatpak's github repo.
• They don't have releases, nor specific versions tagged. It's just git commits indeed.
• Here is a commit where 2.10.0 was released. So I take it, almost any other commit before that one could be good?
• This seems to be the latest commit involving 2.8.

So now I have run the command:

$ sudo flatpak update --commit=19dcc22b60e69eaaf740d4311021ed55b7e2537d org.gimp.GIMP

But it says:

Looking for updates…

        ID                                        Branch     Op     Remote      Download
 1.     org.freedesktop.Platform.GL.default       20.08      u      flathub     < 100.8 MB
 2.     org.freedesktop.Platform.VAAPI.Intel      20.08      u      flathub      < 11.6 MB
 3.     org.gnome.Platform.Locale                 40         u      flathub     < 333.7 MB (partial)
 4.     org.gtk.Gtk3theme.Yaru-light              3.22       u      flathub     < 203.4 kB
 5.     org.gnome.Platform                        40         u      flathub     < 362.6 MB
 6.     org.gimp.GIMP                             stable     u      flathub     < 117.2 MB

Proceed with these changes to the system installation? [Y/n]:

These appear to be dependencies of the Gimp flatpak. Apparently they are needed for this older Gimp? I already have these installed, due to how Gimp 2.10.24 needed them; are these / some of these also going to be downgraded?

My concern is that while this flatpak ecosystem is indeed isolated from the main OS, it seems that internally it still maintains some dependencies. So I don't know whether I mess up this flatpak ecosystem by downgrading Gimp...

Update 2:

I have run the flatpak update --commit command, and it died as follows:

First it went through all the dependencies without a problem (while it consistently downloaded less data for each of them correspondingly as the download size was up front indicated), then when it reached Gimp, as the last item, it went:

OSTree:ERROR:src/libostree/ostree-core.c:1432:ostree_checksum_inplace_to_bytes: assertion failed: (checksum[j])
Bail out! OSTree:ERROR:src/libostree/ostree-core.c:1432:ostree_checksum_inplace_to_bytes: assertion failed: (checksum[j])
Aborted

Then the OS gave the "System program problem detected" dialog.

I suppose I could submit an issue on the Github repo.

When I try to start Plasma Discover on my Kubuntu 20.04 by clicking on it nothing happens.

I can only start it on the command line with "sudo plasma-discover". Then it opens but the Discover start page with recommendations brings the error: "Application could not be loaded. Please check the Internet connection". But the Discover still works. Additionally: when I try on the command line only "plasma-discover" without sudo then I get this:

"Icon theme "gnome" not found".

I deinstalled and re-installed "plasma-discover" package, but it did not change the situation. Is there a way t reset the Discover again somehow?

I'm running an Ubuntu 18.04 Desktop workstation on a network that hosts a Windows domain. The Windows domain servers provide DNS resolution for local servers, but don't always provide accurate DNS resolution for remote servers. This means that, if I make a non-domain DNS server as my primary (such as Google's 8.8.8.8), I can resolve web servers but not local servers. If I put the domain controller as my primary DNS server, I can resolve local servers, but not some web servers (notably AWS Cloudfront endpoints).

Example with Google DNS as primary and domain controller as secondary:

nslookup localserver
Server:     8.8.8.8
Address:    8.8.8.8#53

** server can't find localserver: NXDOMAIN

Is there a way to get DNS resolution to check with the secondary DNS server in the event that the primary DNS server is unable to resolve a DNS name?

I compiled, built and packaged GATTLIB library files in Raspberry Pi 3 as directed in https://github.com/labapart/gattlib. But when trying to install the library from the build folder (/home/pi/Downloads/gattlib-src-root/gattlib-master/build) by using

sudo apt-get install gattlib

I got error

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package gattlib

Please advise me what is the correct way to install GATTLIB in Raspberry pi 3.

I've bought new Dell 5570 i5 8250u 4GB RAM 1TB HDD AMD 530 2GB and it came with Ubuntu pre-installed.

After typing sudo lshw -class display I got:

description: VGA compatible controller

       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 07
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915_bpo latency=0
       resources: irq:280 memory:d1000000-d1ffffff memory:b0000000-bfffffff ioport:f000(size=64)

Also, lspci gives me

00:00.0 Host bridge: Intel Corporation Device 5914 (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Device 5917 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 08)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Device 9d4e (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445] (rev ff)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
03:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 31)

I'd like to change default gpu from intel hd 620 to discrete - AMD.

Is it possible?

I have just downloaded Ubuntu for the first time. However, I can't get any sound and I cannot figure out how to sort it. Please help!

I recently converted my laptop to Ubuntu 14.04 (two days ago at the time of this posting) and just encountered this problem (an hour or so ago at the time of this posting). The problem is that my Logitech headset is no longer working, but in the weirdest way possible. The sound control tab in the system settings shows the headset as the selected audio device but all the sound is played through the onboard speakers of my acer aspire 4743. all of the other functions of the headset remain the same (microphone and volume controls.). I have already messed around with alsamixer and tried the suggestions of other users but nothing has worked so far, any ideas? I am totally new to Linux and have no idea what might be causing this. Thanks, Eric

I have a lovely mount: unknown filesystem type 'ubifs' error with Ubuntu 14.04. What package provides this functionality?

It should be included in some previous versions of Ubuntu. The mtd-* packages are not helping.

How can I create a shortcut for URL in my desktop? I want to use them in Firefox or Chrome.

If a copy and paste didn't work.

What script I have to use?

I want to buy a new notebook in the near future to play games on it. I'm looking forward for the new Steam for Linux client. My question is that where does the Steam install the games, on the home partition, or in the usr folder, or somewhere else? I do not use pre-release (i.e. beta) versions of either Steam or Ubuntu.

I need to remount one directory (/src) as readonly in another location (/dst). This can be done like this:

$ sudo mount --bind /src /dst
$ sudo mount -o remount,ro /dst

However, I would like to use /etc/fstab to have the mount taking place at boot time and have seen different suggested solutions to this problem, e.g.

/src  /dst    none  bind            0 0
/src  /dst    none  remount,bind,ro 0 0

which unfortunately leaves the directory mounted read/write on my system and this

/src  /dst    none  bind            0 0
/dst  /dst    none  remount,bind,ro 0 0

which will issue an error when trying to mount /dst:

mount: /dst not mounted already, or bad option

The above solutions supposedly works on different distros, but unfortunately not on Ubuntu 10.04.4 LTS (kernel 2.6.32-41-server).

Any ideas how to accomplish this apart from placing the mount commands into /etc/rc.local?