Hi, Thorsten here, the Linux kernel's regression tracker. I noticed a regression report in bugzilla.kernel.org. As many (most?) kernel developers don't keep an eye on it, I decided to forward it by mail. Hans, apparently it's cause by a change of yours. Note, you have to use bugzilla to reach the reporter, as I sadly[1] can not CCed them in mails like this. Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=217234 : > arsgeiger@xxxxxxxxx 2023-03-22 23:52:35 UTC > > Created attachment 304002 [details] > libinput events on linux6.0 > > After booting linux6.1 and later upon closing the lid and opening it again, the touchpad is no longer usable. After powering off and booting linux6.0 again (no other changes), the touchpad does continue to work after closing the lid and opening it again. > > When the touchpad gets disabled on linux6.1, after logging in to gnome, I can re-enable it from the settings. Using `libinput debug-events --verbose` Here is a comparison of the output on linux6.0: > >> 2: event10 - lid: suspending touchpad >> -event1 SWITCH_TOGGLE +0.000s switch lid state 1 >> 3: event10 - lid: resume touchpad >> -event6 KEYBOARD_KEY +2.164s KEY_F22 (192) pressed >> event6 KEYBOARD_KEY +2.164s KEY_F22 (192) released >> event6 KEYBOARD_KEY +2.627s KEY_F22 (192) pressed >> event6 KEYBOARD_KEY +2.627s KEY_F22 (192) released >> -event1 SWITCH_TOGGLE +2.168s switch lid state 0 > > And linux 6.1+: > >> 2: event10 - lid: suspending touchpad >> -event1 SWITCH_TOGGLE +0.000s switch lid state 1 >> 3: event10 - lid: resume touchpad >> -event6 KEYBOARD_KEY +2.000s KEY_TOUCHPAD_TOGGLE (530) >> pressed >> event6 KEYBOARD_KEY +2.000s KEY_TOUCHPAD_TOGGLE (530) >> released >> -event1 SWITCH_TOGGLE +2.000s switch lid state 0 > [...] > arsgeiger@xxxxxxxxx 2023-03-30 11:50:11 UTC > > Alright, I found the offending commit (which does not exist in linux6.0 but was backported to linux6.1): > https://gitlab.com/linux-kernel/stable/-/commit/5829f8a897e4f030cd2d32a930eea8954ab5dcd3 > > Building linux6.2 with this commit reverted does workaround the issue for me. See the ticket for more details. [TLDR for the rest of this mail: I'm adding this report to the list of tracked Linux kernel regressions; the text you find below is based on a few templates paragraphs you might have encountered already in similar form.] BTW, let me use this mail to also add the report to the list of tracked regressions to ensure it's doesn't fall through the cracks: #regzbot introduced: 5829f8a897e4f0 https://bugzilla.kernel.org/show_bug.cgi?id=217234 #regzbot title: platform/x86: ideapad-laptop: Touchpad disabled after wakeup #regzbot ignore-activity This isn't a regression? This issue or a fix for it are already discussed somewhere else? It was fixed already? You want to clarify when the regression started to happen? Or point out I got the title or something else totally wrong? Then just reply and tell me -- ideally while also telling regzbot about it, as explained by the page listed in the footer of this mail. Developers: When fixing the issue, remember to add 'Link:' tags pointing to the report (e.g. the buzgzilla ticket and maybe this mail as well, if this thread sees some discussion). See page linked in footer for details. Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page. [1] because bugzilla.kernel.org tells users upon registration their "email address will never be displayed to logged out users"
