[Bug 75965] New: weird 'pixel static' when monitor is woken from standby

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Mar 9 21:46:05 PDT 2014


          Priority: medium
            Bug ID: 75965
          Assignee: xorg-driver-ati at lists.x.org
           Summary: weird 'pixel static' when monitor is woken from
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: bpaterni at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/Radeon
           Product: xorg

Created attachment 95484
  --> https://bugs.freedesktop.org/attachment.cgi?id=95484&action=edit


Sometimes when wake my monitor from standby weird 'pixel static'(?) appears on
the screen. By this I mean some pixels are not colored the way they are
supposed to. The 'static' also isn't stable and it seems to jitter about
similar to analog tv static. I could try continuing to describe it, but that
would probably only lead to more confusion. To compensate, I've attached a few
photos of what I'm seeing.

Here are a few things that I gather to be known of this problem:

* The static is triggered when the monitor comes out of standby, but is not
guaranteed to happen everytime the monitor is woken up
* The static does NOT appear in screenshots
* turning the monitor off/on via power switch does NOT fix
* turning the monitor off/on via xrandr DOES fix

Hardware specific details:

* graphics card is radeon hd 4850 (rv770)
* running dual monitors, both Asus VS248H-P LED-backlit
* static is only ever present on DVI-0

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