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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>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - no Intel HDMI video output with kernel 4.4 and 4.9"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101302">101302</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>no Intel HDMI video output with kernel 4.4 and 4.9
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>stef@zechner77.de
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>i915 platform</th>
<td>HSW
</td>
</tr>
<tr>
<th>i915 features</th>
<td>display/HDMI
</td>
</tr></table>
<p>
<div>
<pre>Hi,
after kernel upgrade to 4.9 (Debian 9) I don't get any video signal for my
onboard Intel HDMI output any more.
Grub menu and the first few seconds after loading the kernel are fine, but HDMI
output is blanked at the time the console font size is changing and xorg is
starting.
No issues with the monitor connected to DVI.
Loading old kernel 3.16 and everything is fine again.
System environment:
- Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz (family: 0x6, model: 0x3c, stepping:
0x3)
- DMI: ASUS All Series/H87-PRO, BIOS 1101 03/03/2014
-- xserver-xorg-video-intel: 2:2.99.917+git20161206-1
-- xserver: 1:7.7+19
-- mesa: 13.0.6-1+b2
-- libdrm: 2.4.74-1
-- kernel: 4.4 and 4.9
-- Linux distribution: Debian 9 and Ubuntu 16.04
-- Display connector: onboard HDMI
To check that this problem is not related to Debian 9, I installed Ubuntu 16.04
which is using kernel 4.4 and is shows the same issue. Old Ubuntu 14.04 with
kernel 3.13 is ok again.
So I guess the HDMI output was screwed up for my system in the early versions
of kernel 4.x
I don't see any related error messages (dmesg and xorg log)
BR
Stefan</pre>
</div>
</p>
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