Public bug reported:
Binary package hint: xserver-xorg-video-ati
I run a script which uses the new xrandr features to setup my video
outputs depending on whether or not my iBook (with a Radeon 9200) has an
external monitor connected. As part of this process, the script will run
"xgamma -gamma 0.65" to make the picture look better on my external
display.
On resume from sleep, it seems that the output is reverted to a gamma of
1.0. If I run xgamma with no arguments, it reports that the gamma is
0.65, as it should be, but the picture tells a different story. I have
to run "xgamma -gamma 0.65" again for the display to look correct again.
I supose that X still thinks the gamma is 0.65, but the radeon driver
has not restored this value after resume.
** Affects: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided
Status: New
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gamma setting is lost after suspend/resume
https://bugs.launchpad.net/bugs/155735
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