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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW] HDMI monitor does not work via active DisplayPort adapter"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83600">83600</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[HSW] HDMI monitor does not work via active DisplayPort adapter
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chris.cheney@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=105879" name="attach_105879" title="debug dmesg output">attachment 105879</a> <a href="attachment.cgi?id=105879&action=edit" title="debug dmesg output">[details]</a></span>
debug dmesg output
I originally opened <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW] *ERROR* too many voltage retries, give up"
href="show_bug.cgi?id=83516">Bug 83516</a> about the issue but the main error at the time
besides the backtrace was the "*ERROR* too many voltage retries, give up" which
was bisected down to c79057922ed6c2c6df1214e6ab4414fea1b23db2. Afterwards I
updated my systems bios again, as a more recent bios came out since I filed
that report, and then the previous error went away. However the monitor still
does not work and I don't see any obvious problems in the debug dmesg output
other than the rather generic:
WARNING: CPU: 0 PID: 1369 at
/home/apw/COD/linux/drivers/gpu/drm/i915/intel_dp.c:3649
intel_dp_link_down+0x223/0x260 [i915]()
The time line of the dmesg output was the following:
1. All 3 monitors connected at boot time and system booted to X
2. HDMI monitor hooked up to DisplayPort active adapter did not come on while
in X
3. At 191s I switched to the console and the monitor activated and displayed
console
4. At 198s I switched back to X and the monitor turned off
5. At 291s I switched back to the console to see if it would work again, but
nope.
6. At 328s I switched back to X and the monitor was still off.
I opened this bug since it appears to another but unrelated bug to the previous
one. If they should be merged into one bug report that is fine with me.</pre>
</div>
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