+++ This bug was initially created as a clone of Bug #958828 +++ Description of problem: Contents of the PyMOL Viewer window is refreshing very slowly (like 1 frame per second at most). Same holds for mouse/keyboard input inside that window. As a result, the application becomes unusable. The main window with the horizontal menu renders normally. Both Nouveau and ATI drivers are affected (Intel seems to be fine). I have tested several graphics cards, namely: nVidia Quadro 310 nVidia Quadro 400 nVidia Quadro 2000 ATI FirePro V4800 The ATI card performed much better in comparison with the other nvidia ones, but still very poor. This issue came up during Fedora 19 Test Days, where almost all testers reported a "slowness" of PyMOL: https://fedoraproject.org/wiki/Test_Day:2013-04-24_Nouveau https://fedoraproject.org/wiki/Test_Day:2013-04-25_Radeon Version-Release number of selected component (if applicable): xorg-x11-server-Xorg-1.14.0-6.fc19.x86_64 xorg-x11-drv-nouveau-1.0.7-1.fc19.x86_64 xorg-x11-drv-ati-7.1.0-5.20130408git6e74aacc5.fc19.x86_64 kernel-3.9.0-0.rc8.git0.2.fc19.x86_64 How reproducible: always Steps to Reproduce: 1. Run pymol 2. Go to Wizard -> Demo and choose an arbitrary demo Actual results: Slow animations/responsiveness inside PyMOL Viewer. Expected results: Smooth performance. --- Additional comment from Michal Domonkos on 2013-05-02 09:40:11 EDT --- Created attachment 742708 [details] Xorg.0.log --- Additional comment from Michal Domonkos on 2013-05-02 09:40:38 EDT --- Created attachment 742709 [details] dmesg --- Additional comment from Michal Domonkos on 2013-05-02 09:41:43 EDT --- Also note the similar bug from Fedora 18: https://bugzilla.redhat.com/show_bug.cgi?id=861656
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