Comment 3 for bug 2004531

After restarting my laptop recently, the touchpad no longer works under kernel version 5.15.0-57-generic. (Same symptoms: the touchpad works in the login screen, but the moment I log in, it stops working.) My best guess is that this happened because of the linux-firmware update (20220329.git681281e4-0ubuntu3.10, from 20220329.git681281e4-0ubuntu3.9), which of course regenerated the initramfs for each kernel installed. (I installed this update before restarting the computer.) But, that's only my best guess. Let me know if I should mark this bug as affecting linux-firmware, or if you need any other information.

Oh, and just to be thorough, I did try the newest kernel (5.15.0-60-generic, newer than my original bug report), and the touchpad still doesn't work (same symptoms as before). This was after installing that linux-firmware update.