[Bug 49838] [830M] fails to wake up from suspend on thinkpad X30
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Mar 2 13:23:25 PST 2015
https://bugs.freedesktop.org/show_bug.cgi?id=49838
--- Comment #138 from Jesse Barnes <jbarnes at virtuousgeek.org> ---
So VGA comes back buggy and LVDS doesn't come back at all. Sounds like we may
be missing save/restore of some memory controller regs, starving the display of
memory bw? I'm just assuming the VGA flicker you saw was caused by underruns.
Another possibility is we're not restoring a source clock configuration, making
the pixel clocks we try to drive bogus...
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