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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [bdw regression 4.8] Severe graphics regression, rainbow glitching and flickering on Intel Broadwell 5500U integrated graphics"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97918#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [bdw regression 4.8] Severe graphics regression, rainbow glitching and flickering on Intel Broadwell 5500U integrated graphics"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97918">bug 97918</a>
from <span class="vcard"><a class="email" href="mailto:n7u4722r35@ynzlx.anonbox.net" title="Mark Spencer <n7u4722r35@ynzlx.anonbox.net>"> <span class="fn">Mark Spencer</span></a>
</span></b>
<pre>Ok, but if I read the patch correctly it doesn't remove anything, just add some
conditional and whitelist. If it's true then adding new hardware to it is
possible. Otherwise we're back to square one
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - LCD flickering on Thinkpad T440p (Haswell) with kernel 4.6-rc4 (PSR enabled)"
href="show_bug.cgi?id=95176">https://bugs.freedesktop.org/show_bug.cgi?id=95176</a> .
BTW: Isn't this comment about the same thing?
/*
* FIXME On Dell XPS 13 9350 the OpRegion panel type (0) gives us
* low vswing for eDP, whereas the VBT panel type (2) gives us normal
* vswing instead. Low vswing results in some display flickers, so
* let's simply ignore the OpRegion panel type on SKL for now.
*/
if (IS_SKYLAKE(dev)) {
DRM_DEBUG_KMS("Ignoring OpRegion panel type (%d)\n", ret - 1);
return -ENODEV;
}
return ret - 1;
}
Maybe this could fix flickering for broadwell as well</pre>
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