Description of problem: Since version xorg-x11-drv-intel-2.15.0-3.fc15, I encounter flickering with big black squares in GTK windows when moving them. Evolution shows this problem very well. I have to downgrade to xorg-x11-drv-intel-2.14.0-6.fc15.x86_64.rpm to see all artifacts disappear. How reproducible: Always. Steps to Reproduce: 1. Install xorg-x11-drv-intel-2.15.0-3.fc15 2. After having reboot the computer, move GTK windows and see the result. Additional info: My computer is a DELL XPS 502x. CPU: Intel SandyBridge i7-2720QM. It also has a Nvidia GPU (supposed to use Optimus): GeForce GT 540M. I reported this bug in #697196 but nobody seemed to care about it.
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue. Please add drm.debug=0x04 to the kernel command line, restart computer, and attach * your X server config file (/etc/X11/xorg.conf, if available), * X server log file (/var/log/Xorg.*.log) * output of the dmesg command, and * system log (/var/log/messages) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link above. We will review this issue again once you've had a chance to attach this information. Thanks in advance.
Created attachment 504469 [details] Dmesg when using drv-intel-2.15 with drm.debug
Created attachment 504471 [details] Xorg.0.log when using drv-intel-2.15 with drm.debug
Created attachment 504472 [details] /var/log/messages before using drv-intel-2.15 and after
I also see a similar issue with a Dell Latitude E6320 (Intel Core i5-2540M w/ HD Graphics 3000). It really does look terrible when moving any GTK window around. I get a blocky, tearing/rolling shutter type effect, especially noticeable when moving a window horizontally. I'll try to capture a screenshot of it happening. Versions of possibly relevant packages: kernel 2.6.40.4-5.fc15 xorg-x11-server-Xorg 1.10.4-1.fc15 xorg-x11-drv-intel 2.15.0-5.fc15 mesa-* 7.11-1.fc15 libdrm 2.4.26-1.fc15 libva 1.0.14-1.fc15 I notice that the versions for all of these packages match those in the Intel 2011Q3 package (http://intellinuxgraphics.org/2011Q3.html) with the exception of the 2D driver (xorg-x11-drv-intel a.k.a. xf86-video-intel), the Fedora 15 version is one version out of date (2.15 versus 2.16). The notes on Intel 2011Q3 include "further stability/performance improvements for the 2nd Generation Intel® Core™ processor family (codenamed Sandy Bridge, for Intel 2011 platforms)" so it is possible that this bug is already fixed in 2.16 and we just need the Fedora 15 package to be updated to the current version.
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