Keywords:* ------------ * intel 845g, i915, drm, agpgart, intel-agp, kernel 2.6.34.13, freeze, lock-up, xorg 7.1, openoffice Detailed description: ---------------------------- Updated kernel from 2.6.22.14-72.fc6 (Fedora) to latest 2.6.x stable from kernel.org (1 week ago this was 2.6.34.13) . Configured new kernel via "make oldconfig" and then did some additional manual configuration. Resulting .config is attached. Note: kernel mode setting is configured to be off. At boot time, the syslog gets the following: Jan 23 11:11:23 orion kernel: agpgart-intel 0000:00:00.0: Intel 830M Chipset Jan 23 11:11:23 orion kernel: agpgart-intel 0000:00:00.0: detected 8060K stolen memory Jan 23 11:11:23 orion kernel: agpgart-intel 0000:00:00.0: AGP aperture is 128M @ 0xd0000000 Jan 23 11:11:23 orion kernel: i801_smbus 0000:00:1f.3: PCI INT B -> GSI 17 (level, low) -> IRQ 17 Jan 23 11:11:23 orion kernel: intel_rng: FWH not detected It should have detected Intel 845G. See attached lspci.txt and lshw.txt. There are no apparent problems until I start X. Then, the syslog gets the following: Jan 23 11:15:17 orion kernel: [drm] Initialized drm 1.1.0 20060810 Jan 23 11:15:18 orion kernel: pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 Jan 23 11:15:18 orion kernel: [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 Jan 23 11:15:21 orion kernel: render error detected, EIR: 0x00000010 Jan 23 11:15:21 orion kernel: [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking Jan 23 11:15:21 orion kernel: render error detected, EIR: 0x00000010 Despite the error, X and the desktop manager start and all seems well. I am running xorg 7.1, and mesa 6.5.1-9.fc6, both from the distro. There is nothing notable in Xorg.0.log that does not show up with the 2.6.22.14 kernel as well. The only warnings are: (WW) I810(0): Bad V_BIOS checksum ... (WW) I810(0): Extended BIOS function 0x5f11 not supported. ... (WW) I810(0): Extended BIOS function 0x5f05 failed. ... (WW) I810(0): Correcting plane A stride (1280 -> 2048) ... (WW) AIGLX: 3D driver claims to not support visual ... (several of these) When I start OpenOffice 3.3, it causes the whole PC to freeze just about when the splash screen is to be removed and the Writer window should appear (it never does). The mouse still moves, although slowish and does not register clicks, but the keyboard is unresponsive. I can still ssh in and I see that X uses 99%+ of the CPU. All I can do is reboot from the ssh or power button. Reproducible 100% of the time. I have tried: * manual configuration in xorg.cong * fully automatic detection and configuration (no xorg.conf) * disabled DRI in xorg.conf * disabled all acceleration in xorg.conf * moved away the i915 kernel module and created a symlink to i830, and later to i810 * replaced the i810 xorg driver with the vesa driver Of the above, only vesa results in no lock-up. It would appear to me, that something got buggered in the ixxx / drm / agpgart / intel-agp setup in 2.6.34.13. I saw that this kernel got replaced with 2.6.34.14 as the current stable, but the changelog does not seem to imply any fixes that might be relevant to this problem. Any insight is appreciated. Thanks.