Binary package hint: gdm
In Ubuntu 10.04, X crashes consistently on the suspend/resume cycle.
The symptoms are one of the following:
* X crashes on standby: the gdm-greeter screen appears complete with login prompt just before standby. The system either enters standby or doesn't; I can log in to X again.
* X crashes on standby: the gdm-greeter screen appears but without login prompt. The system either enters standby or doesn't; I can't login because there is no login prompt and have to reboot the PC.
* X crashes on resume: the PC appears to enter stand-by successfully but the gdm-greeter screen is present on resume. This may be the same as the first case except that the PC enters standby earlier, ie before the gdm-greeter screen can appear.
The attached /var/log/Xorg.0.log shows a segmentation fault in X during standby.
I have tried different combinations of the 2.6.33 and 2.6.32 (stock Ubuntu) kernels and the nvidia 195.30 (installed via nvidia installer) and 195.36.08 (installed with jockey) drivers and they all exhibit the same problem.
The one time that I can recall a successful standby/resume cycle (ie where it goes back to the screensaver password prompt) is immediately after I added the nomodeset command to the kernel boot options. However, it has not worked successfully since.
Backtrace:
0: /usr/bin/X (xorg_backtrace+0x28) [0x4a25d8]
1: /usr/bin/X (0x400000+0x652dd) [0x4652dd]
2: /lib/libpthread.so.0 (0x7ffdcf7d1000+0xf920) [0x7ffdcf7e0920]
3: /usr/lib/xorg/modules/drivers/nvidia_drv.so (_nv001450X+0x16) [0x7ffdca610126]
4: /usr/lib/libpixman-1.so.0 (0x7ffdcf136000+0xa4a2) [0x7ffdcf1404a2]
5: /usr/lib/libpixman-1.so.0 (0x7ffdcf136000+0x34859) [0x7ffdcf16a859]
6: /usr/lib/libpixman-1.so.0 (0x7ffdcf136000+0x2ef6b) [0x7ffdcf164f6b]
7: /usr/lib/libpixman-1.so.0 (0x7ffdcf136000+0x36cc2) [0x7ffdcf16ccc2]
8: /usr/lib/libpixman-1.so.0 (0x7ffdcf136000+0x38030) [0x7ffdcf16e030]
9: /usr/lib/libpixman-1.so.0 (0x7ffdcf136000+0x2ec6a) [0x7ffdcf164c6a]
10: /usr/lib/libpixman-1.so.0 (pixman_image_composite+0x17c) [0x7ffdcf165acc]
11: /usr/lib/xorg/modules/libwfb.so (wfbComposite+0x1c0) [0x7ffdca118be0]
12: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7ffdca545000+0x323605) [0x7ffdca868605]
13: /usr/bin/X (0x400000+0xd7440) [0x4d7440]
14: /usr/bin/X (0x400000+0x164519) [0x564519]
15: /usr/bin/X (0x400000+0x1647e5) [0x5647e5]
16: /usr/bin/X (0x400000+0xa6146) [0x4a6146]
17: /usr/bin/X (0x400000+0x53586) [0x453586]
18: /usr/bin/X (MapWindow+0x179) [0x4576d9]
19: /usr/bin/X (0x400000+0x302d6) [0x4302d6]
20: /usr/bin/X (0x400000+0x30bac) [0x430bac]
21: /usr/bin/X (0x400000+0x2613a) [0x42613a]
22: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7ffdce4cac4d]
23: /usr/bin/X (0x400000+0x25ce9) [0x425ce9]
Segmentation fault at address 0x132785
ProblemType: Bug
Architecture: amd64
CheckboxSubmission: 1bd8e90541d49b96c13cbfcc9baf103b
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Tue Mar 9 07:55:46 2010
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
NonfreeKernelModules: nvidia
Package: gdm 2.29.6-0ubuntu7
ProcEnviron:
PATH=(custom, user)
LANG=en_AU.utf8
SHELL=/bin/bash
SourcePackage: gdm
Uname: Linux 2.6.33-generic x86_64
thank you for your bug report, xorg crashing is an xorg issue though not a gdm one