RE: Graphics Problems with gnome-shell-3.10.3
- From: John Frankish <j-frankish slb com>
- To: "gnome-shell-list gnome org" <gnome-shell-list gnome org>
- Subject: RE: Graphics Problems with gnome-shell-3.10.3
- Date: Tue, 13 May 2014 06:04:27 +0000
On Sun, May 4, 2014 at 6:31 AM, John Frankish <j-frankish slb com> wrote:
I've compiled gnome-3.10.x from source to run on a machine with an intel core-i7 2640m 2.8GHz cpu
with 8GB RAM and intel hd3000 graphics on 64bit tinycorelinux using a 3.8.13 kernel.
Using gnome-session/gnome-shell, most things seem to work, but the graphics display is very poor.
The display background continually turns bright white and dragging any window produces a trail of
multiple windows behind it. The only way to fix this seems to use the mac/special/windows key to
move to the "task- switcher" screen and back again.
Setting CLUTTER_PAINT="disable-clipped-redraws:disable-culling" does not seem to help appreciably.
Are the above problems caused by the graphics not being powerful enough or is it a software problem?
If it is a software problem, are there any patches available to fix this without moving to
gnome-3.12.x? The software in use is listed below.
Regards
John
It's an issue with the background and can be fixed by setting your background to a constant color.
You can also apply the four patches in this bug, but I'm not sure if it will cleanly apply on top of
3.10.x:
https://bugzilla.gnome.org/show_bug.cgi?id=722149
Thanks for the suggestions.
I don't think this is an issue with the background - if I chose a
plain colour from gnome-backgrounds, it does not improve things - or
perhaps I misunderstood?
Most of the four patches do not apply cleanly so as an alternative I
took "backgrounds.js" from gnome-shell-3.13.1, but this did not
improve things either...
I pasted the error log below, but nothing seems point to what the
problem might be?
I played around with this some more and checked Xorg.0.log for errors - see
attached - without finding anything.
The trail of windows produced by dragging a window only happens when the
window crosses the background, it does not happen when crossing another
window.
The background "white-out" happens every time I access gnome-control-
center via the icons in the right hand corner of the top panel and randomly at
other times.
As before using the mac/special/windows key to swap to the task-switcher
fixes things, but gets tiresome :P
There must surely be a way to fix this?
I finally found the answer - to disable the newer "sna" graphics acceleration and enable the older "uxa"
acceleration.
Now both problems - the "white-outs" and trail of multiple window images when dragging a window - have
disappeared.
Hardware/software details below.
----------
[ 1838.558] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
[ 1838.572] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 3000
xf86-video-intel-2.21.15
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated
Graphics Controller [8086:0126] (rev 09)
Kernel driver in use: i915
$ cat /var/log/Xorg* | grep SNA
[ 196.737] (II) intel(0): SNA initialized with Sandybridge (gen6, gt2) backend
Create following file:
/etc/X11/xorg.conf.d/20-intel.conf
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "uxa"
EndSection
[ 1838.977] (II) UXA(0): Driver registered support for the following operations:
[ 1838.977] (II) intel(0): Use standard UXA acceleration
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