Description of problem: The radeon X.org driver doesn't support the xrandr backlight interface. Version-Release number of selected component (if applicable): xorg-x11-drv-ati-6.13.0-1.fc13.x86_64 libXrandr-1.3.0-5.fc13.x86_64 How reproducible: [ltinkl@goblin ~]$ xbacklight No outputs have backlight property Expected results: The radeon driver supports the mentioned backlight interface
Ping, any info on this?
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue. Please add drm.debug=0x04 to the kernel command line, restart computer, and attach * your X server config file (/etc/X11/xorg.conf, if available), * X server log file (/var/log/Xorg.*.log) * output of the dmesg command, and * system log (/var/log/messages) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link above. We will review this issue again once you've had a chance to attach this information. Thanks in advance.
Created attachment 459814 [details] xorg log
Created attachment 459816 [details] dmesg
Created attachment 459818 [details] /var/log/messages
FYI, hardware in use (from lspci -v): 01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3650 (prog-if 00 [VGA controller]) Subsystem: Lenovo Device 2117 Flags: bus master, fast devsel, latency 0, IRQ 50 Memory at d0000000 (32-bit, prefetchable) [size=256M] I/O ports at 2000 [size=256] Memory at cfff0000 (32-bit, non-prefetchable) [size=64K] [virtual] Expansion ROM at cff00000 [disabled] [size=128K] Capabilities: [50] Power Management version 3 Capabilities: [58] Express Legacy Endpoint, MSI 00 Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> Kernel driver in use: radeon Kernel modules: radeon
Same with F14. Support for xrandr backlight is crucial, as both KDE and Gnome are moving away from using HAL, without the backlight interface there is no way to set the display brightness. FWIW, both nouveau and intel drivers work fine in this aspect.
(In reply to comment #7) > Same with F14. Support for xrandr backlight is crucial, as both KDE and Gnome > are moving away from using HAL, without the backlight interface there is no way > to set the display brightness. FWIW, both nouveau and intel drivers work fine > in this aspect. nouveau doesn't work here: [ipilcher@localhost ~]$ lspci | grep VGA 01:00.0 VGA compatible controller: nVidia Corporation GT218 [NVS 3100M] (rev a2) [ipilcher@localhost ~]$ xrandr Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 LVDS-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm 1920x1080 60.0*+ 60.0 50.0 1680x1050 60.0 1400x1050 60.0 1280x1024 59.9 1280x960 59.9 1152x864 60.0 1024x768 59.9 800x600 59.9 640x480 59.4 720x400 59.6 640x400 60.0 640x350 59.8 VGA-1 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis) [ipilcher@localhost ~]$ xbacklight No outputs have backlight property
Same problem on my notebook with an older ATI 9000 radeon card 01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV250 [Mobility FireGL 9000] (rev 02) [mt@nh28d fujitsu-laptop]$ xrandr Screen 0: minimum 320 x 200, current 1280 x 960, maximum 4096 x 4096 VGA-0 disconnected (normal left inverted right x axis y axis) LVDS connected 1280x960+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1400x1050 60.0 + 60.0 1280x1024 59.9 60.0 1280x960 60.0* 59.9 1280x854 59.9 1280x800 59.8 1280x720 59.9 1152x768 59.8 1024x768 120.1 60.0 59.9 960x720 120.0 928x696 120.1 896x672 120.0 800x600 120.0 60.3 59.9 56.2 848x480 59.7 700x525 120.0 720x480 59.7 640x512 120.0 640x480 120.0 59.9 59.4 512x384 120.0 400x300 120.6 112.7 320x240 120.1 S-video disconnected (normal left inverted right x axis y axis) [mt@nh28d fujitsu-laptop]$ xbacklight No outputs have backlight property
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Still happening in F17
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Still valid afaik...
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5 years later and a dozen Fedora releases, still valid... Any chance of getting this fixed?
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Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.
->libXrandr as Comment 0 was for xorg-x11-drv-ati while I see it on xorg-x11-drv-intel. libXrandr-1.5.0-2.fc23.x86_64 xorg-x11-drv-intel-2.99.917-19.20151206.fc23.x86_64 xbacklight-1.2.1-2.fc23.x86_64 $ xbacklight No outputs have backlight property Although this command does work: $ cat /sys/class/backlight/intel_backlight/max_brightness >/sys/class/backlight/intel_backlight/brightness
Possible duplicate: kernel: Bug 1278407 kernel-4.3.3-301.fc23.x86_64 (yes, it is old, I have to try a reboot)
Hi Jan, Your issue with the xrandr backlight property not working is completely unrelated to this bug report, can you please file a new bug against the kernel and put me in the Cc ? For starters also include "ls /sys/class/backlight" and "lspci" output please. Closing this as wontfix as there is no intention to ever add xrandr backlight support to the other xorg drivers. Regards, Hans
With kernel-4.4.9-300.fc23.x86_64 xbacklight started to work again so I am not filing any new kernel Bug now. Sorry for the false reopen.