Created attachment 1953852 [details] journalctl --no-hostname -k > dmesg.txt 1. Please describe the problem: Older HP 8570w laptop running 6.2 kernel from Fedora 38 beta does not adjust brightness when using hotkeys or gbus call. I found https://hansdegoede.livejournal.com/26427.html from October 2022 via https://wiki.archlinux.org/title/backlight which indicates this may be related to a revamp of the backlight system. I have tried the kernel cmdline options individually, but this generated no backlight errors: ``` acpi_backlight=vendor acpi_backlight=native ``` Happy to provide the dmidecode and acpidump privately. 2. What is the Version-Release number of the kernel: Linux fedora 6.2.8-300.fc38.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Mar 22 19:29:30 UTC 2023 x86_64 GNU/Linux 3. Did it work previously in Fedora? If so, what kernel version did the issue *first* appear? Old kernels are available for download at https://koji.fedoraproject.org/koji/packageinfo?packageID=8 : I didn't find a kernel before October which wasn't in deleted state. I do not recall having this issue in previous fedora releases, but I cannot validate at the moment. 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: yes, by pressing hotkeys and making calls to adjust brightness value via gdbus ``gdbus call --session --dest org.gnome.SettingsDaemon.Power --object-path /org/gnome/SettingsDaemon/Power --method org.freedesktop.DBus.Properties.Set org.gnome.SettingsDaemon.Power.Screen Brightness "<int32 50>"`` 5. Does this problem occur with the latest Rawhide kernel? To install the Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by ``sudo dnf update --enablerepo=rawhide kernel``: yes 6. Are you running any modules that not shipped with directly Fedora's kernel?: no 7. Please attach the kernel logs. You can get the complete kernel log for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the issue occurred on a previous boot, use the journalctl ``-b`` flag.
I believe that this likely the same issue as reported here: https://gitlab.freedesktop.org/drm/nouveau/-/issues/202 I have started a test build of the kernel with the patch fixing that issue: https://koji.fedoraproject.org/koji/taskinfo?taskID=99180525 Note this is still building atm, it should be finished in a couple of hours. Here are some generic instructions for installing a kernel directly from koji (Fedora's build system): https://fedorapeople.org/~jwrdegoede/kernel-test-instructions.txt Please give the test kernel a try and let us know if the test kernel resolves your issue.
Note the build of a test Fedora kernel with a patch fixing this has finished, so you can download the rpms to test this kernel now: https://koji.fedoraproject.org/koji/taskinfo?taskID=99180525
the 6.2.8-300.bz2181941.fc38.x86_64 kernel resolves this issue, thanks!
Thank you for testing. I have submitted a merge-request to get the fix added to the official Fedora kernel builds: https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2380
FEDORA-2023-c46eb02bbf has been submitted as an update to Fedora 38. https://bodhi.fedoraproject.org/updates/FEDORA-2023-c46eb02bbf
FEDORA-2023-d525cf5272 has been submitted as an update to Fedora 36. https://bodhi.fedoraproject.org/updates/FEDORA-2023-d525cf5272
FEDORA-2023-98251cef79 has been submitted as an update to Fedora 37. https://bodhi.fedoraproject.org/updates/FEDORA-2023-98251cef79
FEDORA-2023-c46eb02bbf has been pushed to the Fedora 38 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2023-c46eb02bbf See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2023-d525cf5272 has been pushed to the Fedora 36 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2023-d525cf5272` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2023-d525cf5272 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2023-98251cef79 has been pushed to the Fedora 37 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2023-98251cef79` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2023-98251cef79 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2023-c46eb02bbf has been pushed to the Fedora 38 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2023-98251cef79 has been pushed to the Fedora 37 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2023-d525cf5272 has been pushed to the Fedora 36 stable repository. If problem still persists, please make note of it in this bug report.