I'm also getting this problem on my Compaq Presario CQ60. Fn+F7/Fn+F8
don't work to set brightness (though other Fn keycodes generally work),
and in fact I can't seem to find anything to set any value of brightness
at all, and the computer seems to be stuck on the setting of "blindingly
bright." /s
Public bug reported:
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
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.git681281e
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
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