[Openchrome-devel] [Bug 85970] New: No / distorted image

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Nov 6 07:18:39 PST 2014


            Bug ID: 85970
           Summary: No / distorted image
           Product: xorg
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/openchrome
          Assignee: openchrome-devel at lists.freedesktop.org
          Reporter: stefan at ott.net

Created attachment 109035
  --> https://bugs.freedesktop.org/attachment.cgi?id=109035&action=edit


I am having issues with a CX700-based machine. First a few words about the
hardware setup: the machine has a build-in screen and a secondary screen
connected via VGA. xrandr only ever sees one screen though so I'm assuming that
they are both somehow connected to the same port of the CX700.

Now, if I use the VESA driver I get an image on both screens; since I intend to
use the machine for video playback this is not really an option though.

If I use the openchrome Xorg driver from Debian wheezy (0.2.906-2) I get an
image on the external screen but only distortions on the internal one.

If I build a recent version of openchrome from git I get no image on the
external screen and something that looks like a C64 game on the internal one
(colors are switching back and forth between brown and purple). Also the driver
seems to think that no screen is connected.

With the old openchrome (and with the VESA) drivers I keep getting this warning
from xrandr whenever I (try to) change resolutions: "xrandr: Failed to get size
of gamma for output default"

I have tried with various resolutions (via xrandr) and different kernel
versions (3.2 from Debian stable and 3.16 from Debian backports), lots of log
files are attached. Any advice, patches etc. would be appreciated.

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