public inbox for intel-gfx@lists.freedesktop.org
 help / color / mirror / Atom feed
* drm/i915: "Wrong MCH_SSKPD value: 0x16040307"
@ 2014-07-30 18:49 Paul Bolle
  0 siblings, 0 replies; only message in thread
From: Paul Bolle @ 2014-07-30 18:49 UTC (permalink / raw)
  To: Daniel Vetter, Jani Nikula, David Airlie
  Cc: linux-thinkpad, intel-gfx, dri-devel

0) A ThinkPad X220 I use prints these messages at every boot and at
every resume:
    [drm] Wrong MCH_SSKPD value: 0x16040307
    [drm] This can cause pipe underruns and display issues.
    [drm] Please upgrade your BIOS to fix this.

These messages can be seen for every kernel that's still in the logs
(the oldest is v3.11 based).

1) I'm not sure whether I actually run into "pipe underruns" or "display
issues". Is there something specific I should look for?

2) Now it happens that this laptop already runs the latest BIOS. So, if
I were to contact Lenovo to see if they could release a BIOS update to
fix this, what should I ask them to do?


Paul Bolle

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2014-07-30 18:49 UTC | newest]

Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-07-30 18:49 drm/i915: "Wrong MCH_SSKPD value: 0x16040307" Paul Bolle

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox