Hi, Thorsten here, the Linux kernel's regression tracker. Jarkko, I noticed a report about a regression in bugzilla.kernel.org that appears to be related to i2c_designware (at least it looks like that to my untrained eyes). As many (most?) kernel developers don't keep an eye on the bug tracker, I decided to write this mail. To quote from https://bugzilla.kernel.org/show_bug.cgi?id=219440 : > Michael 2024-10-29 08:43:55 UTC > > Just noticed that the touchscreen on my ASUS vivobook S14 stops > working after a suspend-to-idle. As this is something, I clearly > didn't have before, I tested every kernel version released in the > last six months and found the kernel, where the bug was introduced: > 6.10. The last 6.9.12 is still working correctly. Since 6.10 all > kernel versions have the problem. > > Some more info: > > Hardware: ASUS Vivobook S14 (TP3402VA) Kernel working: up to 6.9.12 > Kernel defect: from 6.10 OS: nixos > > I do not have much knowledge about the input devices. I tested that > i2c_hid_acpi seems to be relevant for the touchscreen (and also the > touchpad), as, when I remove it, both stop working. Reloading the > kernel module restores functionality (but NOT after a suspend-to- > idle!!!). Otherwise, I do not see any error messages or so. (Or do > not recognize them...) > > Any help I can offer to identify the regression bug? [...] > 6.12-rc4 does not work either. The regression started with 6.10. [...] > i2c_designware i2c_designware.1: controller timed out > i2c_designware i2c_designware.1: timeout in disabling adapter > i2c_hid_acpi i2c-WDHT1F01:00: failed to change power setting. > i2c_hid_acpi i2c-WDHT1F01:00: PM: dpm_run_callback(): acpi_subsys_resume returns -110 > i2c_hid_acpi i2c-WDHT1F01:00: PM: failed to resume async: error -110 [...] See the ticket for more details. The reporter (Michael) is CCed. Michael: if this mail is fruitless, you most like need to use git bisect to find the change that broke things. For details, see: https://docs.kernel.org/admin-guide/verify-bugs-and-bisect-regressions.html https://docs.kernel.org/admin-guide/bug-bisect.html 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" P.S.: 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: v6.9..v6.10 #regzbot title: i2c: designware: touchscreen stops working after Suspend #regzbot from: Michael <auslands-kv@xxxxxx> #regzbot duplicate: https://bugzilla.kernel.org/show_bug.cgi?id=219440 #regzbot ignore-activity
