Problem Description:
I am using a Lenovo Legion R9000P ADR10 laptop. The internal speakers produce a very flat, quiet, and tinny sound with absolutely no bass. It feels like the subwoofers/woofers are completely disabled, and only the tweeters are functioning. Audio works perfectly fine under Windows, confirming it is a Linux driver/kernel configuration issue (missing pin quirk for this specific model).

System Specifications:

• Laptop Model: Lenovo Legion R9000P ADR10

• Audio Codec: Realtek ALC287

• OS: Ubuntu 26.04 LTS (Resolute)

• Kernel Version: 6.19.0-9-generic

• Codec Info: Codec: Nvidia GPU ad HDMI/DP

  Codec: Realtek ALC287

• Sound Server: PipeWire (Default)

Here is what i want to do, i want to develop a custom bootloader, a custom kernel, a custom userspace, they could be Genix A309, NatInt X769 and PhoenixGaruda - Userspace, and could also include a terminal, a system installer, a graphical installer, then some data condensers for system compilation work to do that, then i will also need a automation like makefile or whatever could be, then comes the rest like it could be stuff for graphical user interface (GUI) and many other important stuff for the system like hacking tools and then i have to develop them so i could implement them in, also i will need many other stuff like a text editor and many other stuff for development and games, i would like to include games as well so could anyone else here help me out with this?

I have been trying to find a PDF viewer on Linux where I can remove blue tones. I am a beginner with this operating system and I still do not know it very well. I have gone into system settings and I have seen that it is possible to remove blues there, but it only affects the desktop; when I open the PDF viewer, the blues are not removed (nor in the browser). I would like to know if there is any program that can do this or if it is possible in some way to have a PDF viewer where blue filtering can be applied. Thank you very much for your help

laptop Lenovo ipad15 8ram 500gb hdd

I cannot log in at Ubuntu-nl.org neither in Vivaldi community (Firefox standard) nor in proton vpn apparently as of May 2nd as Snap is showing dashboard.snapcraft.io (production services) snap downloads snap downloads (production services) is down if i remember well i had this remark 3 times never had this problem and use Ub 12 till Ub 24 thnks fr yr advice and help Guido (odigo)

After upgrade from kubuntu 25.10 to kubuntu 26.04 QEMU is not starting anymore.

Working configuration Kubuntu 25.10 Kernel 6.17.0-23-generic QEMU 10.1.0

Command qemu-system-x86_64 -machine type=q35,accel=kvm -rtc base=localtime -cpu host,+x2apic,tsc-frequency=1000000000 -smp 8,sockets=1,cores=8 -m 2048M -vga std -drive id=hdd0,driver=raw,if=none,file.filename=/home/dev/Projekte/20-myOS++/myOS_v50-5_0_0-64-mb2/disks/hdd0.img -device ahci,id=ahci -device ide-hd,drive=hdd0,bus=ahci.0 -cdrom /home/dev/Projekte/20-myOS++/myOS_v50-5_0_0-64-mb2/build/executables/myOS_v5.00-64.iso -boot d -serial file:tmp/qemu-log.txt -D ./tmp/qemu-debug.txt -d in_asm &

Configuration that fails: Kubuntu 26.04 LST Kernel 7.0.0-15-generic QEMU 10.2.1

Command: as above

Error message:

• warning due to number of SMP cpus
• warning due to TSC frequency
• kvm_arch_init_vcpu failed (0): Operation not supported

Any idea what the problem could be?

I recently started testing gaming and emulation performance on Ubuntu and I noticed that some games run smoothly while others have random stuttering or FPS drops even though system usage looks normal. I’ve already tried updating GPU drivers and switching between Vulkan and OpenGL renderers, but performance still seems inconsistent depending on the game and desktop environment. System details: Ubuntu 24.04 NVIDIA GPU Latest proprietary drivers Steam + Proton setup I wanted to ask if this is something commonly related to shader compilation, compositor behavior, power management, or background services on Linux. Are there any recommended optimizations or settings that experienced Ubuntu gamers usually apply for smoother gameplay and better frame pacing?

My /boot/efi does not have sufficient space. Even after temporarily relocating /boot/Nicrosoft to /home, Upgrade System Firmware required 71,4 MB, but only got 69,7 MB.

> $ df -h /boot/efi 
> File system     Dim. Usati Dispon. Uso% Montato su
> /dev/nvme0n1p1   96M   30M     67M  31% /boot/efi

There is this boot/efi/EFI/Dell/bios/recovery folder that has a couple files such as BIOS_CUR.rcv (about 20 Mb each) which, I guess, are needed for recovery and can perhaps be temporarily moved elsewhere?

EDIT: the system is already dual-boot since a year. Modifying the EFI partition has the obvious risks that system can break up and I will not do that. My version is Ubuntu 24.04.4 LTS. I don't see how this question can be similar to the one that is titled How much room is required in the EFI System Partition (ESP) before installing a partitioned Ubuntu to dual-boot with Windows?

As for my device specific part of the question, machine is a Dell Inc. Precision 5490.

My personal guess is this is due to sssd Linux Aspire 6.17.0-29-generic 24.04 24.04.4 LTS (Noble Numbat)

2026-05-18T08:30:52.269250+01:00 Aspire systemd[1]: anacron.service: Deactivated successfully. 2026-05-18T08:34:52.315822+01:00 Aspire NetworkManager[1371]: [1779089692.3150] dhcp4 (enp2s0): state changed new lease, address=192.168.1.72 2026-05-18T08:34:52.318697+01:00 Aspire NetworkManager[1371]: [1779089692.3184] device (enp2s0): conflict detected for IP address 192.168.1.72 with host D8:D6:68:A2:DA:D4 2026-05-18T08:34:52.320334+01:00 Aspire dbus-daemon[1228]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.13' (uid=0 pid=1371 comm="/usr/sbin/NetworkManager --no-daemon" label="unconfined") 2026-05-18T08:34:52.345213+01:00 Aspire systemd[1]: Starting NetworkManager-dispatcher.service - Network Manager Script Dispatcher Service... 2026-05-18T08:34:52.357449+01:00 Aspire dbus-daemon[1228]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' 2026-05-18T08:34:52.357853+01:00 Aspire systemd[1]: Started NetworkManager-dispatcher.service - Network Manager Script Dispatcher Service. 2026-05-18T08:34:52.757254+01:00 Aspire NetworkManager[1371]: [1779089692.7570] dhcp4 (wlp3s0): state changed new lease, address=192.168.1.69 2026-05-18T08:35:01.596765+01:00 Aspire sssd_nss[6855]: Shutting down (status = 0) 2026-05-18T08:35:01.605212+01:00 Aspire systemd[1]: sssd-nss.service: Deactivated successfully. 2026-05-18T08:35:01.692639+01:00 Aspire systemd[1]: Started sssd-nss.service - SSSD NSS Service responder. 2026-05-18T08:35:01.778674+01:00 Aspire sssd_nss[6961]: Starting up

I have installed Google Chrome from Google's official page a few years ago. It used to work fine, but in the last few weeks I noticed I don't get updates and the system is complaining about architecture. How can I fix this?

This is the error message:

Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://dl.google.com/linux/chrome-stable/deb stable InRelease' doesn't support architecture 'i386'

The system somehow (without asking me) renamed the old google-chrome.list to a .bak file and created a file called google-chrome.sources. From what I've learned online, the fix should be to add Architectures: amd64 line to that file. When I do the error message disappears. The thing the line is somehow removed every now and then and I need to put it there every time I spot the error in the update script. What is the 'real' solution so I can rely on updates without checking the logs?

Details:

root:/etc/apt/sources.list.d# cat /etc/issue

Ubuntu 25.10 \n \l
root:/etc/apt/sources.list.d# uname -a
Linux ryzen 6.17.0-22-generic #22-Ubuntu SMP PREEMPT_DYNAMIC Fri Mar
13 12:04:44 UTC 2026 x86_64 GNU/Linux

root:/etc/apt/sources.list.d# ls -la | grep -i google

-rw-r--r-- 1 root root 190 Mar 29 2025 google-chrome.list.bak
-rw-r--r-- 1 root root 334 May 18 10:00 google-chrome.sources

root:/etc/apt/sources.list.d# cat google-chrome.list.bak
### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# You may comment out this entry, but any other modifications may be lost.
deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main

root:/etc/apt/sources.list.d# cat google-chrome.sources
### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# Changes to this file will not be preserved.
# This file will not be recreated if removed.
X-Repolib-Name: Google Chrome
Types: deb
URIs: https://dl.google.com/linux/chrome-stable/deb/
Suites: stable
Components: main
Architectures: amd64
Signed-By: /usr/share/keyrings/google-chrome.gpg

Does anyone know whom to contact at Ubuntu One if I am not getting reset password link to my outlook account? I tried many times but I am not receiving reset link to my outlook email. Now it says you made too many requests pls check your inbox. I checked everywhere in inbox and junk mail also and still no reset link to reset my password for Ubuntu One. Thanks.

I have been using the experimental variable refresh rate setting in GNOME on my acer monitor (165hz) since 24.04, I updated to 25.10 and then again to 26.04. Prior to the 26.04 update, VRR was working perfectly on GNOME 49. Now VRR for me is completely bugged, and keeps alternating from 48 to 165hz rapidly with nothing in-between. It appears there were either some regressions in VRR or something didn't install correctly? I would appreciate some insight into this, and possibly who I should file a bug report with. Thanks.

just upgraded to 26.04,, and all looks good, but "you tube" glitches , repeating black screen and then displays video resolution , video continues until next black screen about 1-2 mins later,.

any help would be helpful as i am sensitive to flicking lghts

firefox loads other pages ok

I'm on Kubuntu 26.04. I can connect to a VPN with a command line like this:

sudo openconnect --protocol=nc --useragent "Pulse-Secure/22.8.4.38767" <gateway_address>

I created a VPN connection on the GUI matching these settings, and I get that the connection "failed to activate". I then try with nmcli:

nmcli connection up my_VPN_name

I get a GUI to enter the password, then the connection fails. The terminal says "Connection activation failed: Unknown reason" and gives a suggested journalctl line. Running this line I find "dbus: failure: connect-failed (1)".

However, with:

nmcli connection up my_VPN_name --ask

I'm asked username and password on the terminal. I enter them. The connection is activated sucessfully.

So, somehow the GUI username/password is not being correctly handled. Any ideas?

I believe the password is being passed to the gateway alright. Why? Because sometimes I get a message about "Session limit reached" after entering the password (both with and without --ask), with a choice of which active session to kill. It is after that that the connection fails with GUI or succeeds on terminal.

EDIT:

With sudo journalctl --system --follow I see the following differences.

Success (i.e. with --ask):

Connected to HTTPS on <server.name> with ciphersuite ...
Got HTTP response: HTTP/1.1 101 Switching Protocols
Configured as <ip_address> with SSL connected and ESP in progress
Session authentication will expire at ...

Failure (without --ask):

Connected to HTTPS on <gateway_ip> with ciphersuite ...
Got HTTP response: HTTP/1.1 400 Bad Request
Unexpected 400 result from server
Creating SSL connection failed
Unknown error; exiting.

I should point out that my <gateway_address> is of the form <server.name>/<loc>. But the password GUI shows under VPN Host only the <server.name> part. With nmcli connection show my_VPN_name I see that the whole <server.name>/<loc> is stored. Could it be that the GUI is botching the gateway by sending just the IP address, while on terminal it's left as configured? Note that on success I see only the <server.name> part, and on failure I see only the numerical IP address.

I have been using FUSE with Ubuntu for a long time, but with Ubuntu 24.04 I ran into what appears to be a well-known issue. Installing FUSE breaks the Gnome Display Manager (GDM). I would be happy to provide details, but it seems well-documented on the web.

Is there a workaround? Using NFS file server is a possibility, but I would rather stay with FUSE if it can be made to work.

I have a Galaxy Book 2 Pro 5G. I mentioned the issue with the speakers not producing sound last time, but it was only partially resolved—the sound disappears again after restarting the computer. After seeing this post, I feel there might be some hope, but my technical knowledge is limited, and I don’t understand where to go or what to do. Could someone please be so kind as to provide detailed instructions? Thank you very much!

No sound from speaker on LG gram 2023 (i7-1360P)

enter image description here

I use fvwm, with sloppyfocus and autoraise (so that when a window receives focus, it automatically raises above overlapping windows). Since I upgraded to ubuntu 24.04.4, auto raise isn't functioning.

I've been using Bluetooth on a 24.04 Dell Inspriron for about a year, and it's been working quite well. All of sudden, yesterday, in the middle of a call it turned off and won't turn back on. I can't think of anything that changed, except a pending update, but here are the current particulars:

% lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 24.04.4 LTS
Release:        24.04
Codename:       noble

% uname -a
[ or 6.6.0-14-generic ]
Linux borzoi 6.8.0-11-generic #11-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 30 10:27:29 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

% lsusb | grep Blue
Bus 001 Device 005: ID 0bda:887b Realtek Semiconductor Corp. Bluetooth Radio

% lsmod | egrep blue\|bt
btusb                  77824  0
btrtl                  36864  1 btusb
btintel                57344  1 btusb
btbcm                  24576  1 btusb
btmtk                  16384  1 btusb
bluetooth            1085440  15 btrtl,btmtk,btintel,btbcm,bnep,btusb
ecdh_generic           16384  1 bluetooth

% sudo hciconfig hci0 reset
[ 10 seconds later ]
Can't init device hci0: Connection timed out (110)

% sudo dmesg | egrep -i blue\|bt
[    2.577153] usb 1-10: Product: Bluetooth Radio
[    6.122679] Bluetooth: Core ver 2.22
[    6.122702] NET: Registered PF_BLUETOOTH protocol family
[    6.122703] Bluetooth: HCI device and connection manager initialized
[    6.122707] Bluetooth: HCI socket layer initialized
[    6.122710] Bluetooth: L2CAP socket layer initialized
[    6.122713] Bluetooth: SCO socket layer initialized
[    6.347235] usbcore: registered new interface driver btusb
[    8.370956] Bluetooth: hci0: command 0xfc61 tx timeout
[    8.370965] Bluetooth: hci0: RTL: Failed to generate devcoredump
[   11.830538] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   11.830545] Bluetooth: BNEP filters: protocol multicast
[   11.830551] Bluetooth: BNEP socket layer initialized
[   16.434999] Bluetooth: hci0: RTL: RTL: Read reg16 failed (-110)
[48828.003196] Bluetooth: hci0: command 0xfc61 tx timeout
[48828.003229] Bluetooth: hci0: RTL: Failed to generate devcoredump
[48836.227234] Bluetooth: hci0: RTL: RTL: Read reg16 failed (-110)

% rfkill
ID TYPE      DEVICE      SOFT      HARD
 0 bluetooth hci0   unblocked unblocked
 1 wlan      phy0     blocked unblocked

% fwupdmgr update
Devices with no available firmware updates: 
 • Touch Controller Sensor
 • Integrated Webcam HD
 • TPM
 • UEFI Device Firmware
 • UEFI Device Firmware
 • UEFI dbx
Devices with the latest available firmware version:
 • BG6 KIOXIA 512GB
 • System Firmware

I've tried:

• Nuking /var/lib/bluetooth and re-installing bluez and gnome-bluetooth.
• Powering down and waiting several minutes.

The errors point to an issue with the device so my theory is that the older kernels are incompatible with the latest firmware (or the device or its firmware got fried.)

My questions are:

• Can you think of anything else that I can check or try that I haven't mentioned? The above mostly comes from the Ubuntu Bluetooth troubleshooting guide.
• Would upgrading to 26.04, so I can use a more recent kernel, be worth trying? Would there be more risk than reward in not waiting for 26.04.1 ?
• Is there a way to force reinstallation of the last firmware update, in case a bit got flipped? (Reinstalling the previous one would be even better.)

thanks

I'm stuck at "Booting a Command List" trying to boot a 26.04 LTS USB on a Lenovo Thinkstation P710 B30 - dual XEON, 16GB RAM. From 2016-17.

I've tried: nomodeset, acpi=off, removing quiet splash (and combinations of those). Never get anything.

Any other suggestions? The machine has a working Fedora 24 (?) system on it (and a Windows partition).

System

• OS: Ubuntu 24.04
• R: 4.6.0 (2026-04-24)
• RStudio: latest
• BiocManager: 1.30.27
• Bioconductor: 3.23
• Compiler: gcc/g++ 13.3.0

Goal

Run an enrichment analysis using GOfuncR.

Command

BiocManager::install("GOfuncR")

Current error

Installation compiles most files, then fails at unlock_environment.cc:

* installing *source* package ‘GOfuncR’ ...
** this is package ‘GOfuncR’ version ‘1.31.0’
** using staged installation
** libs
[... compilation succeeds for many .cc files ...]
x86_64-linux-gnu-g++ -std=gnu++20 [...] -c unlock_environment.cc -o unlock_environment.o
unlock_environment.cc: In function ‘bool unlock_environment(Rcpp::Environment)’:
unlock_environment.cc:10:41: error: ‘ENVFLAGS’ was not declared in this scope
   10 | #define UNLOCK_FRAME(e) SET_ENVFLAGS(e, ENVFLAGS(e) & (~ FRAME_LOCK_MASK))
      |                                         ^~~~~~~~
unlock_environment.cc:14:3: note: in expansion of macro ‘UNLOCK_FRAME’
   14 |   UNLOCK_FRAME(env);
      |   ^~~~~~~~~~~~
unlock_environment.cc:10:25: error: ‘SET_ENVFLAGS’ was not declared in this scope
   10 | #define UNLOCK_FRAME(e) SET_ENVFLAGS(e, ENVFLAGS(e) & (~ FRAME_LOCK_MASK))
      |                         ^~~~~~~~~~~~
unlock_environment.cc:14:3: note: in expansion of macro ‘UNLOCK_FRAME’
   14 |   UNLOCK_FRAME(env);
      |   ^~~~~~~~~~~~
make: *** [/usr/lib/R/etc/Makeconf:197: unlock_environment.o] Error 1
ERROR: compilation failed for package ‘GOfuncR’

Previous errors I already fixed

At first, installation failed due to missing system libraries. I installed them, but now I get the error above.

1. Missing png.h / libpng-config:

read.c:3:10: fatal error: png.h: No such file or directory
/bin/bash: line 1: libpng-config: command not found

2. Missing Fortran compiler:

sh: 1: x86_64-linux-gnu-gfortran: not found
/bin/bash: line 1: x86_64-linux-gnu-gfortran: command not found
make: *** [/usr/lib/R/etc/Makeconf:217: variogram.o] Error 127
ERROR: compilation failed for package ‘sm’

These caused cascading failures:

ERROR: dependency ‘png’ is not available for package ‘KEGGREST’
ERROR: dependency ‘sm’ is not available for package ‘vioplot’
ERROR: dependencies ‘vioplot’, ‘AnnotationDbi’ are not available for package ‘GOfuncR’

After installing the system dependencies, the build gets further but now stops at the ENVFLAGS / SET_ENVFLAGS error.

Question

Why can't I install GOfuncR on Ubuntu 24.04 with R 4.6.0, and how do I resolve the compilation error in unlock_environment.cc?

kvm_amd CPU x isn't AMD or Hygon?

This text appear early in the boot sequence.

Now this is not really causing any trouble, RIGHT NOW.
But I consider all similar messages to be a potential hazard to the stability of my machine.
Therefore I quite fiercely hunt them down, and "swat them out".
The more of these unwanted messages you have the greater potential for strange interference and malfunction.

These are apparently about virtualbox:
https://unix.stackexchange.com/questions/798132/why-and-how-were-kvm-modules-unexpectedly-enabled-in-ubuntu-24-04
KVM not supported shown in terminal while it is enabled

... but I have this on intel-based hardware,
an oldish i7-9750H-based Asus G731 laptop, with embedded GTX 1660 Ti.
NOTE: 6 cores+HT, so message does not appear for ALL cores(!?)
Virtualbox 7.2(?) IS installed though, but quite seldom used.

I have:
GRUB_CMDLINE_LINUX_DEFAULT= ... kvm.enable_virt_at_load=0
in /etc/default/grub

No go.

$ sudo -i
# cat >/etc/modprobe.d/kvm.conf
blacklist kvm
blacklist kvm-amd
blacklist kvm-intel

CTRl+D

# update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-6.17.0-14-generic
...
# 

CTRl+D again

Reboot... I still get a black screen with these boot messages:

[    6.359851]
[   10.531179] kvm_amd: CPU 4 isn't AMD or Hygon
[   11.104935] kvm_amd: CPU 6 isn't AMD or Hygon
[   11.193682] kvm_amd: CPU 9 isn't AMD or Hygon
_

Still there:

[    6.479793]
[   10.253887] kvm_amd: CPU 9 isn't AMD or Hygon
[   10.901341] kvm_amd: CPU 3 isn't AMD or Hygon
[   10.987984] kvm_amd: CPU 5 isn't AMD or Hygon
_

Those CPU numbers appears to be somewhat random, another run: 0, 8 and 0 (yes, zero repeated) at around 10 seconds.

There has been some apt updates so now with:

$ uname -rv
6.17.0-29-generic #29~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Mon May 11 10:30:58 UTC 2

Does anyone have any more ideas on how to actually get rid of this?

I'm currently trying to install the C++ Extension Pack onto VSCode opened from my WSL User. I tried installing the pack from my main user using the command code --install-extension ms-vscode.cpptools-extension-pack-1.3.0.vsix. However, I am getting the following error:

Error: EACCES: permission denied, rename '/home/blooome/.vscode-server/extensions/.c7a2d5a4-07a4-4350-9fc6-c91d1b681f0b' -> '/home/blooome/.vscode-server/extensions/ms-vscode.cpptools-themes-2.0.0'
    at async Object.rename (node:internal/fs/promises:782:10)
    at async Object.MR (file:///home/blooome/.vscode-server/bin/e54c774e0add60467559eb0d1e229c6452cf8447/out/server-main.js:43:5436)
    at async Hh.G (file:///home/blooome/.vscode-server/bin/e54c774e0add60467559eb0d1e229c6452cf8447/out/server-main.js:55:24522)
    at async Hh.extractUserExtension (file:///home/blooome/.vscode-server/bin/e54c774e0add60467559eb0d1e229c6452cf8447/out/server-main.js:55:21627)
    at async Kc.tb (file:///home/blooome/.vscode-server/bin/e54c774e0add60467559eb0d1e229c6452cf8447/out/server-main.js:55:15335) {
  code: 'Rename',
  name: 'Rename'
}

Node.js v20.18.1

I am quite new to Ubuntu, and Linux as a whole. I have no idea what this means. From what I'm reading, this has to do something with folder permissions. However, I made sure to recursively change folder ownership by running sudo chown -R blooome .vscode-server, which didn't fix the issue.

Does anyone know how to fix this high cpu usage by a firefox subprocess called RDD Process ... or as a temporary band-aid How can I disable "RDD Process" until it gets fixed on firefox ? as a loyal ff user since its "there be dragons" days I'd hate to stop using ff however new ff users will not put up with this ff bug

here is top showing this

$ top

top - 10:46:45 up  1:33,  1 user,  load average: 1.52, 1.12, 0.75
Tasks: 451 total,   1 running, 449 sleeping,   0 stopped,   1 zombie
%Cpu(s):  7.1 us, 10.2 sy,  0.0 ni, 82.7 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem :  63964.8 total,  48381.4 free,  10170.6 used,   5412.8 buff/cache
MiB Swap:  67584.0 total,  67584.0 free,      0.0 used.  52009.7 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                      
   9616 olaf      20   0  687632 124196  98824 S 167.6   0.2   8:06.11 RDD Process                                                                  
  11115 olaf      20   0 3478912   1.0g 142712 S  45.9   1.6   2:05.58 Isolated Web Co                                                              
   9154 olaf      20   0 5345052 918880 434104 S  37.8   1.4   9:23.10 firefox-trunk                                                                
   3318 olaf      20   0 7468292 375644 173560 S   8.1   0.6   4:51.18 gnome-shell                                                                  
   3828 root      20   0  394520  33684  27112 S   5.4   0.1   0:00.70 fwupd                                                                        
  19979 root      20   0       0      0      0 I   5.4   0.0   0:09.26 kworker/u32:0-i915                                                           
  20667 root      20   0       0      0      0 I   5.4   0.0   0:06.43 kworker/u32:4-i915                                                           
     65 root      20   0       0      0      0 S   2.7   0.0   0:00.78 ksoftirqd/8                                                                  
   3084 olaf       9 -11 2622692  31628  22540 S   2.7   0.0   0:25.00 pulseaudio                                                                   
   9014 olaf      20   0  751244  92592  66272 S   2.7   0.1   0:06.94 gnome-terminal-               

This just started other day ... previously I have never seen RDD

firefox   118.0a1 (2023-08-19) (64-bit)


uname -m && uname -r && cat /etc/*release
x86_64
6.2.0-26-generic
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION="Ubuntu 22.04.3 LTS"
PRETTY_NAME="Ubuntu 22.04.3 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.3 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy

and yes it did not help by resetting my local settings by issuing

        rm -rf ~/.mozilla
        rm -rf ~/.cache/mozilla

this is on a beefy desktop and this RDD Process was consistently using high cpu forever ... it was not a temp short lived cpu spike ... however after repeatedly killing firefox and relaunching the RDD did reappear across several such cycles ... as I write RDD Process is gone yet this entire sequence of events has repeated itself across past week or so

coincidentally with above RDD issue, youtube now sometimes fails to play a video upon clicking the video yet same video plays OK on other browsers like Vivaldi

Below answer does not solve this high cpu issue ... How can I disable "RDD Process" until it gets fixed ? I do not want a cpu core pegged all day as I continuously use firefox even when only viewing very well behaved sites like SO ... after killing ff all is OK until I try to watch a youtube video at which point cpu goes to 100% and stays pegged forever AND the youtube video fails to render

UPDATE ff hamburger menu -> Troubleshoot Mode -> Restart ... just to disable all addons afterwards the RDD issue goes away however I would never use ff without my addons so this is not a solution

Major fault of this RDD bug is that cpu usage increases each time I click on a youtube video in a different tab even though none of these videos plays ... the video just sits there not rendering any video after clicking on it AND this high cpu usage continues even after I click on a different tab say the tab for this SO question ... see new tab under this condition :

top - 08:04:00 up 36 min,  1 user,  load average: 2.40, 2.68, 1.68
Tasks: 420 total,   1 running, 413 sleeping,   0 stopped,   6 zombie
%Cpu(s):  4.6 us,  9.5 sy,  0.0 ni, 85.8 id,  0.0 wa,  0.0 hi,  0.1 si,  0.0 st
MiB Mem :  63964.8 total,  49344.6 free,   6397.0 used,   8223.1 buff/cache
MiB Swap:  67584.0 total,  67584.0 free,      0.0 used.  56082.6 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                      
  85851 olaf      20   0  670148 122840  96472 S 162.5   0.2   4:09.69 RDD Process                                                                  
  26395 olaf      20   0 4256544 673516 298232 S  20.8   1.0   4:22.72 firefox-trunk                                                                
  26727 olaf      20   0 2909912 374900 134212 S  14.6   0.6   1:37.87 Isolated Web Co                                                              
  66057 olaf      20   0 3264688 688376 137424 S  13.2   1.1   1:41.47 Isolated Web Co                                                              
      9 root      20   0       0      0      0 I   4.9   0.0   0:18.76 kworker/u32:0-i915                                                           
    827 root      20   0       0      0      0 I   4.2   0.0   0:22.57 kworker/u32:11-i915                                                          
   3350 olaf      20   0 7202140 354256 163644 S   2.1   0.5   1:06.91 gnome-shell                                                                  
     15 root      20   0       0      0      0 I   0.7   0.0   0:01.31 rcu_preempt                                                                  
     41 root      20   0       0      0      0 S   0.7   0.0   0:01.79 ksoftirqd/4                                                                  
     54 root      20   0       0      0      0 I   0.7   0.0   0:03.61 kworker/6:0-events          

     

I upgraded my lenovo thinkstation P920 from 20.04LTS to 22.04LTS. When I update, I get messages like

W: Skipping acquire of configured file 'sutton.bachman/binary-amd64/Packages' as repository 'http://lenovo.archive.canonical.com jammy InRelease' doesn't have the component 'sutton.bachman' (component misspelt in sources.list?)

I don't know what is in these repositories or if there is an equivalent one for 22.04 jammy. How would I fix this?

I get this message when starting SimpleScreenRecorder after upgrade to .04

You are using a non-X11 window system (e.g. Wayland) which is currently not supported by SimpleScreenRecorder. Several features will most likely not work properly. In order to solve this, you should log out, choose a X11/Xorg session at the login screen, and then log back in.

Could someone give the exact command I can paste into the terminal. I am a total noob on this stuff.

I'm using VMWare Workstation 14 with Ubuntu 16.04 on it. When I go into Player>Manage and attempt to click "Install VMWare Tools" I am unable to. It is faded out as shown in the picture:

On one machine (Dell Latitude E7440) running Ubuntu 16.04, when I try to switch to a TTY (e.g. using Ctrl+Alt+F1 or sudo chvt 1), nothing happens.

I keep seeing the last state of my graphical desktop instead of a TTY terminal login, although it is frozen and not accepting any input. Switching back to TTY7 using Ctrl+Alt+F7 brings the desktop back to life as expected.

Why can I not switch to a TTY terminal on this system? How can I diagnose and fix the issue?

$ lspci -k | grep -iEA4 '3d|vga|display'
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
    DeviceName:  Onboard IGD
    Subsystem: Dell Haswell-ULT Integrated Graphics Controller
    Kernel driver in use: i915
    Kernel modules: i915

I can run "7z -b" for multi threading benchmark and compare results between platforms such as Windows and Linux. But how to compare single thread 7z benchmark on Ubuntu? :)

I found no documentation in 7z -h and http://manpages.ubuntu.com/manpages/trusty/man1/7z.1.html about restricting 7z -b to run only in single thread.

I would love to compare the results with Windows just for checking the Intel Haswell Turbo Boost performance whether is working or not on Ubuntu 14.04 LTS.

Thanks in advanced. :)

I have a Lubuntu 13.10 installed on a HP Pavillon dv6000. I just bought a new webcam, Make is Growing, model is "Impala PC Camera". I want to use it with skype, but it is not detected at all. Nor it is in cheese. Any help would be appreciated.

The following command gave those results:

lsmod |grep uvcvideo 

uvcvideo               71309  0  
videobuf2_vmalloc      13048  1 uvcvideo   
videobuf2_core         39125  1 uvcvideo   
videodev              107508  2 uvcvideo,videobuf2_core

lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub     
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub   
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub   
Bus 003 Device 002: ID 04d9:048e Holtek Semiconductor, Inc. Optical Mouse   
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub   
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub 

Error: You are missing the following 32-bit libraries, and Steam may not run: libc.so.6

I installed steam from the software center.

Does anyone have any good ideas as to native MySQL GUI clients for Ubuntu?

So far I've tried MySQL Workbench, which never seemed to work properly, phpMyAdmin which I found a bit slow, and Navicat which is a windows port and runs under wine, but none of these is perfect. In an ideal world, I'm looking for something like a native version of navicat.