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            <b><a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO --- - [ilk] Xorg crashes when enabling external monitor with xf86-video-intel-2.99.909"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=74550#c11">Comment # 11</a>
              on <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO --- - [ilk] Xorg crashes when enabling external monitor with xf86-video-intel-2.99.909"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=74550">bug 74550</a>
              from <span class="vcard"><a class="email" href="mailto:itumaykin@gmail.com" title="Coacher <itumaykin@gmail.com>"> <span class="fn">Coacher</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=93516" name="attach_93516" title="Xorg.0.log with 4d1a2ef9553c663bb97b56adde6f6b41241ff528">attachment 93516</a> <a href="attachment.cgi?id=93516&action=edit" title="Xorg.0.log with 4d1a2ef9553c663bb97b56adde6f6b41241ff528">[details]</a></span>
Xorg.0.log with 4d1a2ef9553c663bb97b56adde6f6b41241ff528

(In reply to <a href="show_bug.cgi?id=74550#c10">comment #10</a>)
<span class="quote">> Actually on a second read, I think I did fix the right bug!

> commit 4d1a2ef9553c663bb97b56adde6f6b41241ff528
> Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
> Date:   Thu Feb 6 08:29:20 2014 +0000

>     sna: Reset composite offsets when reusing freed pixmaps
>     
>     Bugzilla: <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO --- - [ilk] Xorg crashes when enabling external monitor with xf86-video-intel-2.99.909"
   href="show_bug.cgi?id=74550">https://bugs.freedesktop.org/show_bug.cgi?id=74550</a>
>     Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>></span >

This patch breaks X completely, i.e. X fails to start and backlight just
periodically turns on/off showing absolutely black screen.

Here's Xorg log of this.</pre>
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