Control: forwarded -1 https://lore.kernel.org/regressions/[email protected] Control: tags -1 + upstream
Hi In Debian, in https://bugs.debian.org/1146124, Jun Mo, reported the following, with a bisection result: On Sun, Aug 30, 2026 at 12:59:45PM +0800, Jun MO wrote: > Dear Maintainer, > > Fn hotkeys on Lenovo ThinkPad SL400, which are supported by the > module asus-laptop, no longer work starting from Linux 7.1. Normally > when those keys/key combinations are pressed, > acpi_listen/kacpimon/"evtest > /dev/input/by-path/platform-asus_laptop-event" will capture related > events, for example: > > $ acpi_listen > ^[[1;2Photkey ATK0101:00 00000032 00000000 > button/mute MUTE 00000080 00000000 K > ^C > > Starting from Linux 7.1, there are not any related event captured by those > command. > > Using snapshot.debian.org, I found out that the last working kernel version > is 7.0.14-1 while the first not working version is 7.1~rc2-1~exp1. > > Following instructions in [1] and using /boot/config-7.0.14+deb14-amd64, a > bisect resulted in: > > git bisect start > # status: waiting for both 'good' and 'bad' commits > # good: [458c6079fc1d41d564c37679c8ace02cd83ee817] Linux 7.0.14 > git bisect good 458c6079fc1d41d564c37679c8ace02cd83ee817 > # status: waiting for 'bad' commit, 1 'good' commit known > # bad: [7fd2df204f342fc17d1a0bfcd474b24232fb0f32] Linux 7.1-rc2 > git bisect bad 7fd2df204f342fc17d1a0bfcd474b24232fb0f32 > # good: [028ef9c96e96197026887c0f092424679298aae8] Linux 7.0 > git bisect good 028ef9c96e96197026887c0f092424679298aae8 > # good: [334fbe734e687404f346eba7d5d96ed2b44d35ab] Merge tag > 'mm-stable-2026-04-13-21-45' of > git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm > git bisect good 334fbe734e687404f346eba7d5d96ed2b44d35ab > # good: [cdd4dc3aebeab43a72ce0bc2b5bab6f0a80b97a5] Merge tag > 'ntfs-for-7.1-rc1-v2' of > git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs > git bisect good cdd4dc3aebeab43a72ce0bc2b5bab6f0a80b97a5 > # bad: [beaba8bfbb91e3bb3133eacacd62fd6fea515e34] Merge tag 'probes-v7.1-2' > of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace > git bisect bad beaba8bfbb91e3bb3133eacacd62fd6fea515e34 > # good: [bea8d77e45a8b77f2beca1affc9aa7ed28f39b17] Merge tag > 'staging-7.1-rc1' of > git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging > git bisect good bea8d77e45a8b77f2beca1affc9aa7ed28f39b17 > # bad: [065c4e67cc2c40e6dd94649e8e720096fbabd4ee] Merge tag 'uml-for-7.1-rc1' > of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux > git bisect bad 065c4e67cc2c40e6dd94649e8e720096fbabd4ee > # good: [4b0b946019e7376752456380b67e54eea2f10a7c] Merge tag 'for-linus' of > git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma > git bisect good 4b0b946019e7376752456380b67e54eea2f10a7c > # bad: [d6116d86e58a04a9522e349c4a27145521c01ad7] platform/x86: int3472: Use > local variable for LED struct access > git bisect bad d6116d86e58a04a9522e349c4a27145521c01ad7 > # good: [19ebacfb442b83aa5fe75f9c6851b4edbfff3760] platform/x86: > dell/dell-rbtn: Convert ACPI driver to a platform one > git bisect good 19ebacfb442b83aa5fe75f9c6851b4edbfff3760 > # bad: [378500dc1313e2c06a2f675bb00ab5d7880433ba] platform/x86: asus-laptop: > Register ACPI notify handler directly > git bisect bad 378500dc1313e2c06a2f675bb00ab5d7880433ba > # good: [03ae0a0d0973b9e584a05136aab08fee2ef8e455] platform/x86: > uniwill-laptop: Implement USB-C power priority setting > git bisect good 03ae0a0d0973b9e584a05136aab08fee2ef8e455 > # good: [b0bcf48c74cc7f72d1b6effc7cecdae871b1785e] platform/x86: > toshiba_acpi: Register ACPI notify handler directly > git bisect good b0bcf48c74cc7f72d1b6effc7cecdae871b1785e > # good: [553b2ac59fbb434330287fde0cabc64bc6f11ceb] platform/x86: > toshiba_bluetooth: Convert ACPI driver to a platform one > git bisect good 553b2ac59fbb434330287fde0cabc64bc6f11ceb > # good: [3a96c7915d93231e128df74901fe8fcb960b0ecb] platform/x86: > toshiba_haps: Convert ACPI driver to a platform one > git bisect good 3a96c7915d93231e128df74901fe8fcb960b0ecb > # first 'bad' commit: [378500dc1313e2c06a2f675bb00ab5d7880433ba] > platform/x86: asus-laptop: Register ACPI notify handler directly > > [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1143721#15 #regzbot introduced: 378500dc1313e2c06a2f675bb00ab5d7880433ba #regzbot link: https://bugs.debian.org/1146124 Does this rings a bell? Regards, Salvatore
