[Bug 64332] [HD Graphics 4000] Garbage on screen on Samsung NP900X3E-A02
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri May 10 01:28:06 PDT 2013
https://bugs.freedesktop.org/show_bug.cgi?id=64332
--- Comment #9 from Jani Nikula <jani.nikula at intel.com> ---
This is for Urs, murmlos, and cpcpcp:
(In reply to comment #0)
> move with it or disappear. Strangely, if a line was present for long, it can
> "stay" on the screen across reboots, being even visible in BIOS and in
> Windows 8 if I reboot in the other OS. Turning the machine totally off and
> letting it like that for a long time makes the artifact disappear.
Does booting to Windows ever cause the lines to appear if they were not
previously present? I.e. is it only the Linux driver that makes them show up,
or not?
> Starting the machine with kernel option noreboot (and also noacpi) makes the
> bug disappear. (Xorg starts using the FBDEV vesa driver)
Does using a lower resolution help?
Please try the drm-intel-nightly branch of
http://cgit.freedesktop.org/~danvet/drm-intel/ - specifically I'm wondering if
commit a65851af59387146a28a928c3e7bb17dabc5db72
Author: Ville Syrjälä <ville.syrjala at linux.intel.com>
Date: Tue Apr 23 15:03:34 2013 +0300
drm/i915: Make data/link N value power of two
might help this.
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