[Bug 63636] New: SNA/Gen4 xrandr mangles the screen
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Apr 17 03:20:13 PDT 2013
https://bugs.freedesktop.org/show_bug.cgi?id=63636
Priority: medium
Bug ID: 63636
Assignee: chris at chris-wilson.co.uk
Summary: SNA/Gen4 xrandr mangles the screen
QA Contact: intel-gfx-bugs at lists.freedesktop.org
Severity: normal
Classification: Unclassified
OS: All
Reporter: sergio.callegari at gmail.com
Hardware: Other
Status: NEW
Version: git
Component: Driver/intel
Product: xorg
Hi,
there is an issue that causes 100% reproducible screen mangling of the screen
on Gen4 hardware, using sna.
I see it on a machine with displayport. Attaching the exernal screen and
running
xrandr --output DP1 --auto --primary --output LVDS1 --off
is sufficient to mangle the whole screen. I do not know if this also happens
with VGA screens (i.e. without displayport), but I suspect it is the case.
Note that after having corrupted the screen with the command above, you succeed
in blindly writing
xrandr --output LVDS1 --auto --primary --output DP1 --off
then screen is restored.
Also note that you can make the problematic command work fine, if you split it
in two steps
xrandr --output DP1 --primary --auto --output LVDS1 --auto --right-of DP1
xrandr --output DP1 --auto --primary --output LVDS1 --off
Thanks for the attention!
--
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130417/d9c7f649/attachment.html>
More information about the intel-gfx-bugs
mailing list