diff options
| author | Dave Airlie <airlied@redhat.com> | 2010-07-20 13:15:31 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-02 10:20:48 -0700 |
| commit | 2de0f4bbfc10aec123d9c7a98deffc90c38f42f8 (patch) | |
| tree | 0ffb35688241116345b210ca5be40380b8ff5570 /block | |
| parent | 4213fcfd47a72db594a90e71074d357e0a2a32b2 (diff) | |
drm/i915: enable low power render writes on GEN3 hardware.
commit 944001201ca0196bcdb088129e5866a9f379d08c upstream.
A lot of 945GMs have had stability issues for a long time, this manifested as X hangs, blitter engine hangs, and lots of crashes.
one such report is at:
https://bugs.freedesktop.org/show_bug.cgi?id=20560
along with numerous distro bugzillas.
This only took a week of digging and hair ripping to figure out.
Tracked down and tested on a 945GM Lenovo T60,
previously running
x11perf -copypixwin500
or
x11perf -copywinpix500
repeatedly would cause the GPU to wedge within 4 or 5 tries, with random busy bits set.
After this patch no hangs were observed.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions