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<body><span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [i915] eDP cannot light up after waking up from suspend the second time."
href="https://bugs.freedesktop.org/show_bug.cgi?id=112407">bug 112407</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>NEW
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [i915] eDP cannot light up after waking up from suspend the second time."
href="https://bugs.freedesktop.org/show_bug.cgi?id=112407#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [i915] eDP cannot light up after waking up from suspend the second time."
href="https://bugs.freedesktop.org/show_bug.cgi?id=112407">bug 112407</a>
from <span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span></b>
<pre>(In reply to Yvonne from <a href="show_bug.cgi?id=112407#c3">comment #3</a>)
<span class="quote">> (In reply to Lakshmi from <a href="show_bug.cgi?id=112407#c2">comment #2</a>)
> > (In reply to Yvonne from <a href="show_bug.cgi?id=112407#c0">comment #0</a>)
> > >
> > > Expected result:
> > > After step3, eDP should light up after waking up from suspend.
> > >
> > What have you done to make eDP working after step3?
>
> eDP cannot light up, but remote can connect to system. Issue only can be
> recovered via reboot.
>
> > Can you attach the full dmesg from boot with kernel parameters
> > drm.debug=0x1e log_buf_len=4M.
> >
> > Also, I would recommend to reproduce this issue using drm-tip
> > (<a href="https://cgit.freedesktop.org/drm-tip">https://cgit.freedesktop.org/drm-tip</a>)
>
> I tried to reproduce issue with drm-tip (top commit is 20edef7), but with
> the kconfig I attached, it seems suspend cannot work. System will hang if do
> suspend via "sudo rtcwake -m mem -s 10"
>
> Besides, I tried to reproduce this issue on CML RVP with codec ALC700 in SDW
> mode with
> linux-image-unsigned-5.4.0-050400-generic_5.4.0-050400.201911242031_amd64.
> deb, issue can still be reproduced. Full dmesg with kernel parameters
> drm.debug=0x1e log_buf_len=4M please see the attachment.</span >
@Jon, any comments here?</pre>
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