OS: Ubuntu 24.04.2 LTS
Kernel: Linux 6.8.0-53-generic
Hardware: ASUSTek N56VM laptop (using onboard keyboard)
I believe I am experiencing the same issue. I've recently been keeping
track of the conditions under which this happens, and have noticed what
I think are patterns that might be useful in further tracking this down:
1. This seems to (only?) happen after I access the "Show all apps"
feature (using Super+A), specifically after typing several characters
into the Search filter, and launching the matching application. It does
not happen 100% of the time, although it is fairly easy to reproduce (I
would say at least 50% of the time).
2. When it happens, there will potentially be a series of "stuck" keys.
The order of "stuck" keys is the REVERSE order of the same keys entered
into the "Show all apps" Search filter. Not all keys will always stick;
sometimes there are gaps, but of the ones that do stick, they always
follow this order pattern.
3. Once a "stuck" key has been "unstuck", if another key is going to
"stick", it will not do so until after switching windows (via Alt+Tab,
for example).
4. Once "stuck", a key can be "unstuck" by pressing any key that outputs
a character (basically excluding Super, Shift, Control, Alt, etc).
However, the same key will resume "sticking" after switching windows
(#3) UNLESS the key pressed is the SAME key as is "stuck". For example,
if "t" is stuck, and "y" is pressed, "t" will stop printing to the
screen, but after switching windows, "t" will start repeating again. On
the other hand, pressing "t" in the same situation will "clear" "t" from
repeating after switching windows.
Example A:
1. Press Super+A to open "Show all apps"
2. Type s i g n a l to filter apps (Signal application now selected)
3. Press ENTER to launch Signal.
4. Keys I have witnessed sticking:
4a. i (three separate occurrences)
4b. g i
4c. l a n g i
4d. a n g
4f. n g i i
Example B:
1. Press Super+A to open "Show all apps"
2. Type c h r o m e to filter apps (Google Chrome application now selected)
3. Press ENTER to launch Chrome.
4. Keys I have witnessed sticking:
4a. h r m e
4b. e r
4c. r h (two separate occurrences)
4d. r h
4e. r
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-signed-hwe-5.15 in Ubuntu.
https://bugs.launchpad.net/bugs/2093376
Title:
Random keys "stick" repeating until any key is pressed
Status in linux-signed-hwe-5.15 package in Ubuntu:
Confirmed
Bug description:
Bug found on the brand new Dell Vostro laptop with preinstalled Ubuntu
20.04 LTS.
Any key at any random moment (might be once an hour or more often) may
"stick" repeating itself like I would holding it pressed. Any other or
the same key must be pressed to stop this. It's not a hardware
keyboard issue itself, since it happens with the external keyboard as
well, but not happens on other OS on the same computer.
Other users reported facing this bug too mostly with Dell laptops on
20.04, 22.04 which are still in LTS and I'm providing links here
because some useful research is done there which may help to locate
the issue.
https://askubuntu.com/questions/1446583/ubuntu-22-04-infrequent-random-key-sticking-on-dell-g15-5521-that-immediately-c/1494501
https://askubuntu.com/questions/1454666/keys-start-repeating-as-if-they-were-stuck-ubuntu-20-04-and-others-on-laptop
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.15.0-126-generic 5.15.0-126.136~20.04.1
ProcVersionSignature: Ubuntu 5.15.0-126.136~20.04.1-generic 5.15.167
Uname: Linux 5.15.0-126-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Jan 10 00:10:40 2025
DistributionChannelDescriptor:
# This is the distribution channel descriptor for the OEM CDs
# For more information see
http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-focal-amd64-20200502-85
InstallationDate: Installed on 2024-10-08 (93 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary
20200502-05:58
SourcePackage: linux-signed-hwe-5.15
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.15/+bug/2093376/+subscriptions
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