[Bug 86548] Screen tears on xrandr orientation inverted

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86548

Ander Conselvan de Oliveira <conselvan2 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|DRM/Intel                   |Driver/intel
           Assignee|intel-gfx-bugs at lists.freede |chris at chris-wilson.co.uk
                   |sktop.org                   |
            Product|DRI                         |xorg
            Summary|[3.18 regression] Screen    |Screen tears on xrandr
                   |tears on xrandr orientation |orientation inverted
                   |inverted                    |

--- Comment #11 from Ander Conselvan de Oliveira <conselvan2 at gmail.com> ---
(In reply to Chris Wilson from comment #10)
> (There is certainly a kernel regression due to planes)

Even so, the original report makes no mention of using nightly or a very recent
kernel. Also, the link to github implies the problem started to happen after an
upgrade from Ubuntu 14.04 to 14.10. The latter uses kernel 3.16 and
xf86-video-intel version 2.99.914. I am able to reproduce the bug with that
config, getting the screen divided horizontally like in the attached
screenshot.

Adding

   Option "Present" "false"

to the device section of xorg.conf works around the problem.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20141230/62f73584/attachment.html>