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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - dpms/blanking does not work with current git on HD 5500"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90179#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - dpms/blanking does not work with current git on HD 5500"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90179">bug 90179</a>
from <span class="vcard"><a class="email" href="mailto:xhejtman@fi.muni.cz" title="Lukas Hejtmanek <xhejtman@fi.muni.cz>"> <span class="fn">Lukas Hejtmanek</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=90179#c11">comment #11</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=115338" name="attach_115338" title="Disable CRTC if DPMS fails">attachment 115338</a> <a href="attachment.cgi?id=115338&action=edit" title="Disable CRTC if DPMS fails">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=90179&attachment=115338'>[review]</a> [review]
> Disable CRTC if DPMS fails
>
> Ok, that looks consistent with the kernel failing to disable the output (and
> not the following SaveScreen(unblank)).
>
> Can you please test the following patch? Having a debug log (like the last
> with just X + xterm) in any case would be very useful, thanks.</span >
well, this one fail on assertion (sna_crtc->flags & CRTC_ON) in
__sna_crtc_disable.
I work arounded this. However, I get no screen at all, just turned off display
with error message on console:
sna_output_dpms: failed to set DPM mode [3->0] on output eDP1: 22
sna_output_dpms: failed to set DPM mode [0->3] on output eDP1: 22
I created dmesg with drm.debug=6 as requested, but not sure whether it is
usable right now as I didn't reach xset test.</pre>
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