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<body><span class="vcard"><a class="email" href="mailto:v_bachvarov@mail.bg" title="roccobaroccoSC <v_bachvarov@mail.bg>"> <span class="fn">roccobaroccoSC</span></a>
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<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [i915] xf86-video-intel breaks secondary display in Xorg"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111976">bug 111976</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>ASSIGNED
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [i915] xf86-video-intel breaks secondary display in Xorg"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111976#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [i915] xf86-video-intel breaks secondary display in Xorg"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111976">bug 111976</a>
from <span class="vcard"><a class="email" href="mailto:v_bachvarov@mail.bg" title="roccobaroccoSC <v_bachvarov@mail.bg>"> <span class="fn">roccobaroccoSC</span></a>
</span></b>
<pre>I found something interesting!
The last known good arch package 870 had a patch file that was deleted in the
next version!
The patch file explains exactly the same symptoms as mine.
<a href="https://git.archlinux.org/svntogit/packages.git/plain/trunk/0001-SNA-fix-PRIME-output-support-since-xserver-1.20.patch?h=packages/xf86-video-intel&id=ac52f309e918498f64b4c33e6967846cd0a551f6">https://git.archlinux.org/svntogit/packages.git/plain/trunk/0001-SNA-fix-PRIME-output-support-since-xserver-1.20.patch?h=packages/xf86-video-intel&id=ac52f309e918498f64b4c33e6967846cd0a551f6</a>
I have no idea why the patch file was removed but this explains why my own
built sources did not work - I did not have the Arch patch.
Here is what the patch describes:
"
Since xorg-server 1.20, an external monitor would remain blank when used
in a PRIME output slave setup. Only a cursor was visible. The cause is
"Make PixmapDirtyUpdateRec::src a DrawablePtr" in xserver, the "src"
pointer might point to the root window (created by the server) instead
of a pixmap (as created by xf86-video-intel). Use get_drawable_pixmap to
handle both cases.
"
For more details see the URL above.</pre>
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