Hi I've been watching this bug for a while because I wrote a small fullscreen app that ran into this problem until I disabled unredirect. I haven't noticed any performance degredation in the 5 months I've been running 9.04 with the unredirect disabled. So I decided to run some benchmarks against not only the unredirect option but also against the 2 versions of the nvidia driver. I run the 173.14 driver because I kept seeing corruption in certain GTK apps so I wondered if that affected my experience with the workaround.
My results show no performance impact for the workaround on my hardware. That of course does not mean that specific video cards may not exhibit the problem, but I believe I've discounted any specific nvidia driver version as having any impact. Benchmark: Nexuiz Benchmark Test 1024x768 Default FX levels SHIFT-ESC "timedemo demos/demo1" Hardware: Thinkpad T61p Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz nVidia Corporation Quadro FX 570M (rev a1) (256mb VRAM) 2GB RAM Results (hope the font doesn't mangle the alignment): Driver Unredirect On Unredirect Off Version FPS min/avg/max FPS min/avg/max ---------------------------------------------------------------------- 173.14 15/58/61 16/57/61 180.44 82/149/263 83/149/263 My glxgears tests showed 60FPS constantly (not sure why everyone is getting such huge numbers for that; is there a frame limit option?), however the scene information in that utility is so simple I'm not really sure it makes a very useful benchmark. -- [MASTER] Applications are flickering/flashing in full screen mode https://bugs.launchpad.net/bugs/153204 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
