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. Hmmmm… -- You received this bug notification because you are a member of Kernel 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: USER PID 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 notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2004531/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
