[Bug 73667] New: Kernel 3.12.x breaks video playback using XBMC on Intel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73667

          Priority: medium
            Bug ID: 73667
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: Kernel 3.12.x breaks video playback using XBMC on
                    Intel
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: lkml at call-home.ch
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 92153
  --> https://bugs.freedesktop.org/attachment.cgi?id=92153&action=edit
Kernel 3.11.10 / 3.12.1 / 3.12.7 Logs

I use Ubuntu 13.10 x64. I run XBMC Alpha Git 10 using HDMI output.

I use Ubuntu kernels from mainline
(http://kernel.ubuntu.com/~kernel-ppa/mainline)

Kernel 3.8.x / 3.11.10 (and some others kernels) work fine and every
frame is rendered properly.

Problem:
Using kernel 3.12.1 / 3.12.7 (I tested only these two) video playback
skips several frames per second.

Mainboard: Intel DH61AG
BIOS: AGH6110H.86A.0106.2013.0509.1441
CPU: Intel i3-3240
Memory: 4 Gb
One SSD is being used

I am attaching logs from dmesg for a 3.11.10 and 3.12.1/3.12.7 kernel.

Regards,
Bjoern

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