[Bug 70254] [snb dp hotplug] Pipe B, PCH transcoder B FIFO underrun
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Jan 20 09:30:19 PST 2014
https://bugs.freedesktop.org/show_bug.cgi?id=70254
Ville Syrjala <ville.syrjala at linux.intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |ASSIGNED
Assignee|intel-gfx-bugs at lists.freede |ville.syrjala at linux.intel.c
|sktop.org |om
--- Comment #27 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
Hmm. The register dumps look perfectly fine. So the BIOS provided memory
latency values being too low to keep the system happy remains my only theory.
Any chance there might be a BIOS update available for the machine? That might
be worth a shot, although I can't guarantee that any update would affect the
latency values.
In any case, I'll need to cook up some patches to allow run-time modification
of the latency values, so that we can try and see if increasing them would
actually help...
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