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<body><span class="vcard"><a class="email" href="mailto:krisman@collabora.co.uk" title="krisman@collabora.co.uk">krisman@collabora.co.uk</a>
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<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [HSW] no Intel HDMI video output with kernel 4.4 and 4.9"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101302">bug 101302</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Assignee</td>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
<td>krisman@collabora.co.uk
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<td style="text-align:right;">Status</td>
<td>REOPENED
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<td>ASSIGNED
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [HSW] no Intel HDMI video output with kernel 4.4 and 4.9"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101302#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [HSW] no Intel HDMI video output with kernel 4.4 and 4.9"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101302">bug 101302</a>
from <span class="vcard"><a class="email" href="mailto:krisman@collabora.co.uk" title="krisman@collabora.co.uk">krisman@collabora.co.uk</a>
</span></b>
<pre>(In reply to <a href="mailto:stef@zechner77.de">stef@zechner77.de</a> from <a href="show_bug.cgi?id=101302#c3">comment #3</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=132026" name="attach_132026" title="dmesg output">attachment 132026</a> <a href="attachment.cgi?id=132026&action=edit" title="dmesg output">[details]</a></span>
> dmesg output
>
> I compiled latest drm-intel-nightly (SHA 18d562c9) and still get no image.
>
> I also attached the full dmesg output with "drm.debug=0xe log_buf_len=4M"</span >
Thanks for the information,
There are 3 things that caught my attention in your log:
1) The hotplug task is triggering every few seconds and (apparently)
successfully detecting the monitor attached to HDMI-A-3 every time.
2) After each detection, errors like this occur:
[drm:intel_engine_cmd_parser [i915]] CMD: Rejected register 0x00002360 in
command: 0x11000001 (rcs0)
[ 50.339786] [drm:intel_engine_cmd_parser [i915]] CMD: Rejected register
0x00002360 in command: 0x11000001 (rcs0)
3) Finally, we have:
[drm:intel_prepare_plane_fb [i915]] failed to pin object
Which doesn't seem related to the rest.
Since the monitor is identified and the connector modes are successfully
probed, I want to start by figuring out what made the register value to be
rejected.</pre>
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