Comment 35 for bug 477256

I can confirm the random freeze behavior with Ubuntu 9.10 on a Toshiba 10 Satellite, just freshly installed. Started googling the problem and found this bug report.

X freezes (gnome) from time to time and only a full power-reboot fixes the problem. Mouse can be moved but nothing else. Can't access ttys with Ctrl+Alt+F1 , .... , Sound still works (had internet radio on). Happens regardless of programs running, sometimes none, sometimes just Firefox.

greping the logs shows a lot of render errors, but I have no idea wether this is the root of the problem

/var/log/syslog.1:Jan 6 14:23:23 edokristina kernel: [ 1.661937] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 6 14:23:23 edokristina kernel: [ 1.661944] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
/var/log/syslog.1:Jan 6 14:23:23 edokristina kernel: [ 1.661962] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 6 16:56:04 edokristina kernel: [ 2.415741] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 6 16:56:04 edokristina kernel: [ 2.415749] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
/var/log/syslog.1:Jan 6 16:56:04 edokristina kernel: [ 2.415768] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 6 16:57:07 edokristina kernel: [ 89.131539] evolution-data-[3070]: segfault at abce07 ip 00cd2180 sp b6e9e490 error 7 in libdbus-1.so.3.4.0[ca6000+37000]
/var/log/syslog.1:Jan 6 17:41:35 edokristina kernel: [ 2.415155] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 6 17:41:35 edokristina kernel: [ 2.415163] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
/var/log/syslog.1:Jan 6 17:41:35 edokristina kernel: [ 2.415182] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 6 20:06:39 edokristina kernel: [ 2.406191] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 6 20:06:39 edokristina kernel: [ 2.406199] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
/var/log/syslog.1:Jan 6 20:06:39 edokristina kernel: [ 2.406217] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 7 00:09:38 edokristina kernel: [ 2.410916] render error detected, EIR: 0x00000010
/var/log/syslog.1:Jan 7 00:09:38 edokristina kernel: [ 2.410922] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
/var/log/syslog.1:Jan 7 00:09:38 edokristina kernel: [ 2.410942] render error detected, EIR: 0x00000010

Will try to modify grub with acpi=off and see wether it fixes the problem.