Hi all Sorry, not sure what information is most appropriate here. GPU hangs from time to time on this laptop, typically when running firefox on graphics-intensive sites. Error log at the bottom. Distro is Debian 6.0.6 (squeeze), lspci
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Device 011f Flags: bus master, fast devsel, latency 0, IRQ 46 Memory at fc000000 (64-bit, non-prefetchable) [size=1M] Memory at d0000000 (64-bit, prefetchable) [size=256M] I/O ports at 1800 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 3 Kernel driver in use: i915 kernel version 3.5.2 (yes, I'll try to upgrade). Sometimes also the X-server freezes and restarts with no errors in dmesg. Is it a known problem? Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state [drm:i915_reset] *ERROR* Failed to reset chip. ------------[ cut here ]------------ WARNING: at drivers/gpu/drm/i915/intel_display.c:906 intel_enable_pipe+0x16c/0x1c0 [i915]() Hardware name: Extensa 5220 PLL state assertion failure (expected on, current off) Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage tun crypto_blkcipher aes_generic mperf cpufreq_powersave cpufreq_userspace cpufreq_stats i915 drm_kms_helper bnep rfcomm bluetooth crc16 fuse cryptomgr aead arc4 crypto_algapi rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac80211 cfg80211 uhci_hcd sg ehci_hcd tg3 sr_mod tifm_7xx1 usbcore cdrom coretemp snd_hda_codec_realtek pcmcia psmouse tifm_core i2c_i801 yenta_socket pcmcia_rsrc snd_hda_intel hwmon libphy snd_hda_codec usb_common pcmcia_core sdhci_pci sdhci mmc_core Pid: 1780, comm: Xorg Not tainted 3.5.2 #32 Call Trace: [<c1029958>] ? warn_slowpath_common+0x78/0xb0 [<f83bb4bc>] ? intel_enable_pipe+0x16c/0x1c0 [i915] [<f83bb4bc>] ? intel_enable_pipe+0x16c/0x1c0 [i915] [<c1029a23>] ? warn_slowpath_fmt+0x33/0x40 [<f83bb4bc>] ? intel_enable_pipe+0x16c/0x1c0 [i915] [<f83c0d32>] ? i9xx_crtc_mode_set+0x942/0x1070 [i915] [<f83bd03b>] ? intel_crtc_mode_set+0x5b/0x90 [i915] [<f8118cd8>] ? drm_crtc_helper_set_mode+0x358/0x4a0 [drm_kms_helper] [<f83bf75c>] ? intel_get_load_detect_pipe+0x22c/0x3a0 [i915] [<c1096bb3>] ? find_get_page+0x63/0xc0 [<c10f572a>] ? __find_get_block+0x9a/0x1e0 [<c10f522a>] ? __find_get_block_slow+0xfa/0x1b0 [<f83d7d9b>] ? intel_tv_detect+0x9b/0x460 [i915] [<c10f588b>] ? __getblk+0x1b/0x320 [<c1215c01>] ? drm_get_connector_name+0x31/0x50 [<f8119cc8>] ? drm_helper_probe_single_connector_modes+0x258/0x310 [drm_kms_helper] [<c1215acf>] ? drm_mode_getconnector+0x33f/0x370 [<c1206223>] ? drm_ioctl+0x263/0x4e0 [<c1215790>] ? drm_mode_getencoder+0xb0/0xb0 [<c1205fc0>] ? drm_version+0x90/0x90 [<c10dbecd>] ? do_vfs_ioctl+0x8d/0x600 [<c11032d6>] ? fsnotify+0x196/0x2c0 [<c10e69c0>] ? alloc_fd+0xc0/0x110 [<c10cc8c7>] ? vfs_write+0x107/0x150 [<c10dc47d>] ? sys_ioctl+0x3d/0x70 [<c133c92c>] ? sysenter_do_call+0x12/0x22 ---[ end trace 81ff939dea1daea3 ]---