A few things:
1. The linux-firmware thing might be a red herring; I downgraded the
package to the old version (20220329.git681281e4-0ubuntu3.9) and
restarted (choosing kernel version 5.15.0-57-generic), and the problem
persisted.
2. I noticed that, even when the touchpad wasn’t working, it could still
be found using “xinput list” (listed as “SynPS/2 Synaptics TouchPad”)
and tested using “sudo evtest”. (Remember, I made sure that the touchpad
wasn’t disabled, either by the hardware switch or in “Mouse
Preferences.”) This made me wonder if this all was a kernel bug at all
(but that was still my best guess, given that previously my touchpad
worked under 5.15.0-57-generic but not 5.15.0-58-generic).
3. Finally, I found a fix for my use-case:
https://askubuntu.com/questions/815569/ubuntu-16-04-touchpad-stops-
working-after-login/1338177#1338177 I tried using “xinput --list-props
'SynPS/2 Synaptics TouchPad'”, and indeed, one of the results displayed
was “Synaptics Off (295): 1”. By using “xinput --set-prop 'SynPS/2
Synaptics TouchPad' 'Synaptics Off' 0”, I was able to get the touchpad
working again instantly. Just to make sure, I updated linux-firmware to
the latest version (20220329.git681281e4-0ubuntu3.10) and restarted into
the latest kernel (5.15.0-60-generic), and once again, the touchpad
stopped working after login; but once again, I was able to use “xinput
--set-prop 'SynPS/2 Synaptics TouchPad' 'Synaptics Off' 0” in the
terminal to restore touchpad functionality. (I’ll put that line in my
.profile, so that hopefully I won’t have to do it manually again.)
So I guess this bug report is now a matter of what disabled the touchpad
in the first place using that obscure flag. H…
--
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2004531
Title:
Touchpad stops working after login when using latest kernel
(5.15.0-58-generic)
Status in linux package in Ubuntu:
Confirmed
Bug description:
After upgrading to the latest kernel (5.15.0-58-generic), my laptop’s
touchpad has stopped working after the login screen. That is, it works
on the login screen, but as soon as I log in (in fact, the moment I
press enter after entering my password), the mouse cursor no longer
responds to touchpad input. (I’ve made sure that my touchpad is
enabled, both by using the touchpad enable/disable button on my
laptop, and by checking in “Mouse Preferences” (Preferences → Mouse in
the main menu) that the “Enable Touchpad” box is checked.) The mouse
buttons below the touchpad, however, still work, and if I plug in a
USB mouse, that will work as well.
When I restart and select the previous kernel version
(5.15.0-57-generic) on boot, the touchpad works again, on the login
screen and after. Nevertheless, I’d really appreciate a fix; this
laptop is dear to me, and I’d like to be able to use it with the
latest kernel updates.
I’m using Ubuntu MATE 22.04.01 LTS on a Compaq Presario CQ60.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-58-generic 5.15.0-58.64
ProcVersionSignature: Ubuntu 5.15.0-58.64-generic 5.15.74
Uname: Linux 5.15.0-58-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: tina 2670 F pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: MATE
Date: Wed Feb 1 18:36:00 2023
HibernationDevice: RESUME=UUID=3e371ef8-1061-4c6d-b9ab-a072575893c9
InstallationDate: Installed on 2018-05-24 (1715 days ago)
InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64
(20180426)
MachineType: Hewlett-Packard Compaq Presario CQ60 Notebook PC
ProcFB: 0 nouveaudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-58-generic
root=UUID=1e6f5cc4-d098-4aaa-9a26-4f3808cfd68d ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.15.0-58-generic N/A
linux-backports-modules-5.15.0-58-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3.9
SourcePackage: linux
UpgradeStatus: Upgraded to jammy on 2023-01-11 (21 days ago)
dmi.bios.date: 02/04/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.33
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3617
dmi.board.vendor: Wistron
dmi.board.version: 09.48
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Wistron
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnHewlett-Packard:bvrF.33:bd02/04/2009:svnHewlett-Packard:pnCompaqPresarioCQ60NotebookPC:pvrF.33:rvnWistron:rn3617:rvr09.48:cvnWistron:ct10:cvrChassisVersion:skuNL058PA#AB2:
dmi.product.family: 103C_5335KV
dmi.product.name: Compaq Presario CQ60 Notebook PC
dmi.product.sku: NL058PA#AB2
dmi.product.version: F.33
dmi.sys.vendor: Hewlett-Packard
To manage
