Red Hat Bugzilla – Bug 675049
[Cantiga] brightness goes down when switch the screen mode
Last modified: 2014-04-26 03:11:01 EDT
Description of problem:
1) The brightness buttons do not work, although they are recognized by the system.
2) Every time i switch the screen mode in "gnome-control-center display" menu, the brightness seem to get -10% adjustment. So after ~5 switchings display looks really dark.
Version-Release number of selected component (if applicable):
the hardware profile
and the Live-i686-image used
Steps to Reproduce:
1a. try Fn+Left/Right arrow button
result: the brightness icon appears on the screen, but brightness is not changed
1b. gnome-control-center display
2b. switch mode to 800x600 and back several times
mode switching works good(rotating also)
only brightness is lowered
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)
* the output of "xkbcomp -xkb $DISPLAY -",
* 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 476986 [details]
Created attachment 476987 [details]
xkbcomp -xkb $DISPLAY -
Created attachment 476988 [details]
Created attachment 476989 [details]
the only Xorg configuration file from /etc/X11/xorg.conf.d/
Created attachment 477714 [details]
it seems i forgot the main part - Xorg.log
here it comes
I tried Fedora Beta TC1 with all updates on the same laptop. And the bug seems to be fixed. Fn-Brightness buttons work, and I can change display resolution without changing the brightness.
Do not know which update or which package is responsible for the fix.
This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle.
Changing version to '19'.
(As we did not run this process for some time, it could affect also pre-Fedora 19 development
cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.)
More information and reason for this action is here:
Closing this per comment 7.