Confirmed on both 295.40 (nvidia-current) and 295.49 (nvidia-current- updates) in Precise. Graphics card 8600GT on a 64-bit AMD processor. After running Minecraft under Unity-2D for half a minute, X suddenly becomes very unresponsive and consumes 100% CPU. Simultanously the following is output to Xorg.0.log (monitored by tail -f):
[ 990.330] [mi] EQ overflowing. Additional events will be discarded until existing events are processed. [ 990.331] Backtrace: [ 990.452] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7fc6578a9866] [ 990.452] 1: /usr/bin/X (mieqEnqueue+0x263) [0x7fc657889f43] [ 990.452] 2: /usr/bin/X (0x7fc657721000+0x62934) [0x7fc657783934] [ 990.453] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7fc64fb9a000+0x5d88) [0x7fc64fb9fd88] [ 990.453] 4: /usr/bin/X (0x7fc657721000+0x8ae07) [0x7fc6577abe07] [ 990.453] 5: /usr/bin/X (0x7fc657721000+0xb0d4a) [0x7fc6577d1d4a] [ 990.453] 6: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fc656a47000+0xfcb0) [0x7fc656a56cb0] [ 990.453] 7: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fc650682000+0xf8ccb) [0x7fc65077accb] [ 990.453] 8: /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (0x7fc6567c0000+0xe343) [0x7fc6567ce343] [ 990.453] 9: /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (0x7fc6567c0000+0x14736) [0x7fc6567d4736] [ 990.453] 10: /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (0x7fc6567c0000+0x13996) [0x7fc6567d3996] [ 990.453] 11: /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (0x7fc6567c0000+0x41383) [0x7fc656801383] [ 990.453] 12: /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 (pixman_image_composite32+0x498) [0x7fc6567c9488] [ 990.453] 13: /usr/lib/xorg/modules/libwfb.so (wfbComposite+0x1d8) [0x7fc650252228] [ 990.453] 14: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fc650682000+0x4cfa15) [0x7fc650b51a15] [ 990.453] 15: /usr/bin/X (0x7fc657721000+0x116444) [0x7fc657837444] [ 990.453] 16: /usr/bin/X (0x7fc657721000+0x10e9c4) [0x7fc65782f9c4] [ 990.453] 17: /usr/bin/X (0x7fc657721000+0x4e7a1) [0x7fc65776f7a1] [ 990.453] 18: /usr/bin/X (0x7fc657721000+0x3d6aa) [0x7fc65775e6aa] [ 990.453] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7fc6558dc76d] [ 990.453] 20: /usr/bin/X (0x7fc657721000+0x3d99d) [0x7fc65775e99d] [ 990.453] [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack. [ 990.453] [mi] mieq is *NOT* the cause. It is a victim. [ 990.738] [mi] EQ overflow continuing. 100 events have been dropped. ... It was running fine in Lucid. Is there a way to easily try the latest NVidia drivers (currently 295.53 or 302.11b) by a .deb or PPA? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/982710 Title: [regression] Nvidia 295.40 driver is extremely slow To manage notifications about this bug go to: https://bugs.launchpad.net/nvidia-drivers-ubuntu/+bug/982710/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
