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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW-H]VGA port unable to work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87220#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW-H]VGA port unable to work"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87220">bug 87220</a>
from <span class="vcard"><a class="email" href="mailto:xiong.y.zhang@intel.com" title="XiongZhang <xiong.y.zhang@intel.com>"> <span class="fn">XiongZhang</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=110972" name="attach_110972" title="Dmesg from drm-intel-nightly branch">attachment 110972</a> <a href="attachment.cgi?id=110972&action=edit" title="Dmesg from drm-intel-nightly branch">[details]</a></span>
Dmesg from drm-intel-nightly branch
I used latest drm-intel-nightly branch
8b7ac3d drm-intel-nightly: 2014y-12m-16d-17h-44m-52s UTC integration manifest
Through the following steps, I get the dmesg:
1. Only connect vga screen to BDW-H
2. Boot drm-intel-nightly kernel with drm.debug=0xe and i915.modeset=0
3. rmmod snd-hda-intel and rmmod i915
4. dmesg -c
5. modprobe i915 modeset=1
6. the vga screen flicker then become blackscreen</pre>
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