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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SKL bisected] system hang when changing resolution in games or killing gnome-session twice"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89727#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [SKL bisected] system hang when changing resolution in games or killing gnome-session twice"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89727">bug 89727</a>
from <span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
</span></b>
<pre>(In reply to Matt Roper from <a href="show_bug.cgi?id=89727#c14">comment #14</a>)
<span class="quote">> (In reply to Daniel Vetter from <a href="show_bug.cgi?id=89727#c12">comment #12</a>)
> > Can we just revert the skl part of this patch as an interim solution to
> > unblock QA? Matt, can you please prepare a patch.
>
> Reverting the SKL part of my patch will just result in NULL-dereference and
> immediate crashes when killing X or doing anything else that causes the
> primary plane to be disabled, so I think that will be even more crippling
> than the current situation (at least today it sounds like you can bring X
> down and back up at least once before running into problems).</span >
Hm right. Can we do a functional revert instead like in the other wm code, i.e.
assuming if state->fb == NULL that bpp == 4 and the primary plane spans the
full screen? Horrible hacks I know, but that should at least get us out of this
until someone can look at skl wm for real.</pre>
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