[Bug 27422] [X700] Color depth degradation after resume

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Jul 14 23:08:56 PDT 2011


--- Comment #22 from Mikhail <mlt at gmx.us> 2011-07-14 23:08:56 PDT ---
(In reply to comment #15)
> (In reply to comment #14)
> > mlt at mlt-laptop:~$ xgamma -gamma 1.0
> > -> Red  1.000, Green  1.000, Blue  1.000
> > <- Red  1.000, Green  1.000, Blue  1.000
> I forgot to mention that it doesn't help.

I tried values for gamma other than 1. It does change artifacts pattern on
screen. For -gamma 0.1, visible amount of artifacts diminishes and only
substantially brights areas are affected. For -gamma 1.2, nonuniform blueish
artifacts start to show up on dark areas. For -gamma close to 10, only greenish
artifacts are visible on bright areas and I barely see any blueish noise.

If I try to switch to console with Ctrl+Alt+F1, I can see somewhat uniform
pinkish high frequency non-steady noise instead of blackness of the console.
Also there is a somewhat darker red vertical strip 1/3 from the left edge. I'm
using default Ubuntu settings so video mode doesn't change at least visibly
when I switch to console and back.

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