|Summary:||Dell PowerEdge T20 has backlight control|
|Product:||[Fedora] Fedora||Reporter:||Michael Kuhn <suraia>|
|Component:||kernel||Assignee:||Kernel Maintainer List <kernel-maint>|
|Status:||CLOSED INSUFFICIENT_DATA||QA Contact:||Fedora Extras Quality Assurance <extras-qa>|
|Version:||21||CC:||gansalmon, hdegoede, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2015-02-24 16:13:26 UTC||Type:||Bug|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Cloudforms Team:||---||Target Upstream Version:|
Description Michael Kuhn 2014-08-24 16:48:36 UTC
Created attachment 930163 [details] /sys/class/dmi/id Description of problem: My Dell PowerEdge T20 desktop (CPU: E3-1225v3) shows a non-functioning backlight control (acpi_video0) in /sys/class/backlight. Booting the system with video.use_native_backlight=1 does not fix the problem (acpi_video0 still shows up) but using acpi_backlight=vendor fixes it. I am using BIOS version A04 with UEFI and disabled Legacy Option ROMs if that makes any difference. Version-Release number of selected component (if applicable): kernel.x86_64 3.16.1-300.fc20 kernel-core.x86_64 3.16.1-300.fc20 kernel-headers.x86_64 3.16.1-300.fc20 kernel-modules.x86_64 3.16.1-300.fc20 kernel-modules-extra.x86_64 3.16.1-300.fc20 Steps to Reproduce: 1. Boot system and log in to GNOME. 2. Check system menu and/or /sys/class/backlight.
Comment 1 Hans de Goede 2014-08-26 13:33:46 UTC
Hi, Thanks for the bug-report, can you please run the following 2 commands in a shell: ls /sys/class/backlight As well as: for i in /sys/class/dmi/id/*; do echo $i; cat $i 2> /dev/null; done And copy and paste the output of both into your next comment here in bugzilla ? Thanks, Hans
Comment 2 Hans de Goede 2014-08-26 13:35:26 UTC
I see you've already done the /sys/class/backlight bit, so feel free to skip that :)
Comment 3 Michael Kuhn 2014-08-26 16:26:17 UTC
You can already find the contents of the files in /sys/class/dmi/id in the attachment of my first comment. Or is there something missing?
Comment 4 Justin M. Forbes 2014-11-13 15:55:42 UTC
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs. Fedora 20 has now been rebased to 3.17.2-200.fc20. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21. If you experience different issues, please open a new bug report for those.
Comment 5 Michael Kuhn 2014-11-17 23:18:51 UTC
This is still happening with Fedora 21.
Comment 6 Justin M. Forbes 2015-01-27 14:58:54 UTC
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 21 kernel bugs. Fedora 21 has now been rebased to 3.18.3-201.fc21. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
Comment 7 Fedora Kernel Team 2015-02-24 16:13:26 UTC
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.