Package: xorg Version: 1:7.7+3~deb7u0
xorg-server 2:1.12.4-6 (Julien Cristau <jcris...@debian.org>) My graphic card is a Riva TNT2 M64 I'm not sure which package has the problem. The x crashes inmediatly from the first reboot, returning to text console. Only lasts with the x just fresh installed. It happens, at least, from testing version March 2012 ; but x works whith testing 2012-01-16, only crashing ocassionally although more than usual. I tried in stable 7.0 compiling drm-nouveau ( 2.45 ) , nouveau ( 1.0.6 ) , and kernel ( 3.2.46 ) , all from original sources, without debian patches. It gets more stable with nouveau, no changes with the kernel; the lasting of x is variable , but remains unstable, in the scope of maybe half one hour, even leaving without activity, using a text console. I also compiled xorg-server , kernel and fvwm in a testing version, but not drm-nouveau nor nouveau, and the x continued crashing just seconds after launching them. If you launch repeatedly the x you get continuous crashes getting always the same messages from x. Always the problem is now in libexa. Some testing versions ago, the broken library was random. Particularities of my system are: - Installed just minimum from cd installer - added packages from dvds with apt-get ( included x ) - fvwm - athlon xp - no internet X was perfectly stable with nv and fvwm from potato to squeeze, and is stable with nouveau and slackware14 with kernel 3.2.46 , but has some crashes with 3.4.x ( but different, from the kernel module ) Xorg backtrace : Backtrace: [ 381.001] 0: /usr/bin/X (xorg_backtrace+0x49) [0xb7699769] [ 381.001] 1: /usr/bin/X (0xb751c000+0x181186) [0xb769d186] [ 381.001] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb74fd40c] [ 381.001] 3: /usr/lib/xorg/modules/libexa.so (0xb6f16000+0x979f) [0xb6f1f79f] [ 381.001] 4: /usr/lib/xorg/modules/libexa.so (0xb6f16000+0x99d8) [0xb6f1f9d8] [ 381.001] 5: /usr/bin/X (miCopyRegion+0x17c) [0xb7675f6c] [ 381.002] 6: /usr/bin/X (miDoCopy+0x4f0) [0xb76765a0] [ 381.002] 7: /usr/lib/xorg/modules/libexa.so (0xb6f16000+0x80c2) [0xb6f1e0c2] [ 381.002] 8: /usr/bin/X (0xb751c000+0x10929d) [0xb762529d] [ 381.002] 9: /usr/bin/X (0xb751c000+0x37d23) [0xb7553d23] [ 381.002] 10: /usr/bin/X (0xb751c000+0x3c375) [0xb7558375] [ 381.002] 11: /usr/bin/X (0xb751c000+0x29e95) [0xb7545e95] [ 381.002] 12: /lib/i386-linux-gnu/i686/cmov/libc.so.6 (__libc_start_main+0xe6) [0xb71c1e46] [ 381.002] 13: /usr/bin/X (0xb751c000+0x2a1e9) [0xb75461e9] [ 381.002] [ 381.002] Segmentation fault at address 0xbf9135d0 [ 381.002] Fatal server error: [ 381.002] Caught signal 11 (Segmentation fault). Server aborting This backtrace is with nouveau , drm-nouveau and kernel compiled as commented before , but the same , i think , than with debian original packages.