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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - display corruption on GPD Pocket (Cherry Trail Atom x7-Z8750)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105834#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - display corruption on GPD Pocket (Cherry Trail Atom x7-Z8750)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105834">bug 105834</a>
from <span class="vcard"><a class="email" href="mailto:sobukus@sourcemage.org" title="Thomas Orgis <sobukus@sourcemage.org>"> <span class="fn">Thomas Orgis</span></a>
</span></b>
<pre>Sorry for the late reply … the notification got lost …
(In reply to Ville Syrjala from <a href="show_bug.cgi?id=105834#c8">comment #8</a>)
<span class="quote">> Does 'xset dpms force off; xset dpms force on' fix the display as well?</span >
Indeed it does.
I also went through the pain of installing the Windows 10 image on this device
and was unable to produce the corruption there. People suggested that my device
is faulty, but I really guess it is within spec, just a bit more prone to this
than others. There is of course a significant element of chance involved, as I
was also unable to reproduce for quite some time on Xubuntu with the
linux-sunxi kernel based on the final 4.16.0. I will test that again after
purging Windows from the device …
<span class="quote">> It seems the DSI encoder gets confused somehow and starts sending data out
> of phase. I could imagine that a FIFO underrun could perhaps lead to that
> outcome, but there are none reported in the dmesg.</span >
Any debugging information I could aquire? Could one implement a runtime
diagnostic that recognizes the confusion?</pre>
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