> > > > > On Sun, May 4, 2014 at 6:31 AM, John Frankish <j-frank...@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 _______________________________________________ gnome-shell-list mailing list gnome-shell-list@gnome.org https://mail.gnome.org/mailman/listinfo/gnome-shell-list
