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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Failure to wake monitor after sleep on Haswell graphics driver under 4.4.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94014#c37">Comment # 37</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Failure to wake monitor after sleep on Haswell graphics driver under 4.4.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94014">bug 94014</a>
from <span class="vcard"><a class="email" href="mailto:shashank.sharma@intel.com" title="shashank.sharma@intel.com <shashank.sharma@intel.com>"> <span class="fn">shashank.sharma@intel.com</span></a>
</span></b>
<pre>Agree.
So this DPMS-off first disables display, and similarly DPMS-on enables display.
We have seen similar issue where live_status register takes time to set, which
sometimes block detection path.
So if we add a flag (crtc->is_resuming) on the resume path, this might help to
handle this.
Shashank</pre>
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