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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HSW] crash when vga output set to mirror mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=65927#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HSW] crash when vga output set to mirror mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=65927">bug 65927</a>
from <span class="vcard"><a class="email" href="mailto:tjaalton@ubuntu.com" title="Timo Aaltonen <tjaalton@ubuntu.com>"> <span class="fn">Timo Aaltonen</span></a>
</span></b>
<pre>ok got something, although again not the same trace as originally:
[ 63.226349] Call Trace:
[ 63.226361] [<ffffffff8134d1e9>] ? snprintf+0x39/0x40
[ 63.226388] [<ffffffffa032d7dd>] drm_mode_set_config_internal+0x5d/0xe
0 [drm]
[ 63.226416] [<ffffffffa032feeb>] drm_mode_setcrtc+0xfb/0x600 [drm]
[ 63.226437] [<ffffffff816e233d>] ? mutex_lock+0x1d/0x41
[ 63.226458] [<ffffffffa0320529>] drm_ioctl+0x539/0x670 [drm]
[ 63.226481] [<ffffffffa032fdf0>] ? drm_mode_setplane+0x3b0/0x3b0 [drm]
[ 63.226503] [<ffffffff811a8877>] do_vfs_ioctl+0x97/0x560
[ 63.226521] [<ffffffff8108fed4>] ? vtime_account_user+0x74/0x90
[ 63.226540] [<ffffffff811a8dd1>] SyS_ioctl+0x91/0xb0
[ 63.226557] [<ffffffff816ee82f>] tracesys+0xe1/0xe6
[ 63.226572] Code: c0 48 8b 7d c0 48 8d 72 01 48 69 f6 50 05 00 00 eb 0c
90 48 05 50 05 00 00 48 39 f0 74 2d 48 8b 94 01 a0 04 00 00 48 85 d2 74 e8
<48> 3b 7a 38 75 e2 8b 94 01 84 04 00 00 85 d2 75 3
9 48 05 50 05
[ 63.228974] RIP [<ffffffffa03d8f18>] intel_crtc_set_config+0x218/0x970
[i915]
so checking 'intel_crtc_set_config+0x218' from i915.ko gives:
8545 int num_connectors)
8546 {
8547 int i;
8548
8549 for (i = 0; i < num_connectors; i++)
8550 if (connectors[i].encoder &&
8551 connectors[i].encoder->crtc == crtc &&
8552 connectors[i].dpms != DRM_MODE_DPMS_ON)
8553 return true;
8554
HEAD at 8bbbb45b2125a28ea1de657e7893a521b44b60c3</pre>
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