Public bug reported: Binary package hint: xorg
I have been able to track down the causes of my X Server hangs, and it looks like a known issue. Since upgrading to Intrepid, I regularly come back to my system to find the X Server locked up. I was able to ssh in, attach gdb and get a backtrace. What I got is: gdb) bt #0 0xb80a0430 in __kernel_vsyscall () #1 0xb7d6a1a9 in ioctl () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7b6598f in drmWaitVBlank () from /usr/lib/libdrm.so.2 #3 0xad622b7d in ?? () from /usr/lib/dri/r300_dri.so #4 0xad622e0b in driWaitForVBlank () from /usr/lib/dri/r300_dri.so #5 0xad629a61 in radeonCopyBuffer () from /usr/lib/dri/r300_dri.so #6 0xad628ed0 in radeonSwapBuffers () from /usr/lib/dri/r300_dri.so #7 0xad624127 in ?? () from /usr/lib/dri/r300_dri.so #8 0xb7bf0ac4 in ?? () from /usr/lib/xorg/modules/extensions//libglx.so #9 0xb7be32ce in ?? () from /usr/lib/xorg/modules/extensions//libglx.so #10 0xb7be6c0a in ?? () from /usr/lib/xorg/modules/extensions//libglx.so #11 0x0808c89f in Dispatch () #12 0x08071d1d in main () In doing some research, I found the following:http://bugs.freedesktop.org/show_bug.cgi?id=18041 "[945GM(E)] 'xrandr --output LVDS off' hangs Xserver in drmWaitVBlank()". Nothing to do with the Intel chipset - if you read the bug, it's a generic issue. From the bug: "We finally figured out what's the issue is here. Apparently GNOME uses 'xrandr --output LVDS --off' for screen blanking (instead of DPMS) and this hangs the Xserver in drmWaitVBlank() when compiz is running. Disabling vblank fixes/workarounds the issue." ** Affects: xorg (Ubuntu) Importance: Undecided Status: New -- X Server hangs in drmWaitVBlank() https://bugs.launchpad.net/bugs/304056 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
