Yes this is a 12 years old bug but here is fix: Either add "acpi_rsdp=0xf7f70 acpi=rsdt" to your kernel command line parameters OR flash the patched BIOS at https://badcaps.net/forum/showthread.php?p=1088210 for a permanent fix.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/446641 Title: [Gamila/Giovani/Neon motherboard] ACPI error prevents drm from loading Status in module-init-tools: Fix Committed Status in linux package in Ubuntu: Invalid Status in xserver-xorg-video-intel package in Ubuntu: Invalid Bug description: From dmesg: [ 0.000000] ACPI Error: A valid RSDP was not found 20090521 tbxfroot-219 It seems this ACPI error leads the acpi/video.ko driver to fail to load, which causes the drm driver to fail to load. Original description: I'm currently posting this using the vesa driver since -intel is too excruciatingly slow. The /var/log/Xorg.0.log.old contains the Xorg log from when I used -intel last X session. Anyways, the symptoms while using -intel are that everything becomes excruciatingly slow while Xorg eats up all available CPU. Looking at the log I believe this to be the cause of failure: drmOpenDevice: node name is /dev/dri/card0 [drm] failed to load kernel module "i915" (EE) intel(0): [drm] Failed to open DRM device for : No such file or directory (EE) intel(0): Failed to become DRM master. This happens on a beta live CD as well as with a fully-updated 9.10. I believe that the DRM errors lead to the driver falling back to an extremely slow (slower than vesa) software rasterizer. ProblemType: Bug Architecture: i386 Date: Thu Oct 8 15:43:34 2009 DistroRelease: Ubuntu 9.10 MachineType: Hewlett-Packard PPPPPP-ABA MMMMM NonfreeKernelModules: nvidia Package: xserver-xorg-video-intel 2:2.9.0-1ubuntu1 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-12-generic root=UUID=f729410d-6864-4a78-9833-a9f7781fd469 ro quiet splash i915.modeset=0 ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.31-12.41-generic RelatedPackageVersions: xserver-xorg 1:7.4+3ubuntu5 libgl1-mesa-glx 7.6.0-1ubuntu1 libdrm2 2.4.14-1ubuntu1 xserver-xorg-video-intel 2:2.9.0-1ubuntu1 xserver-xorg-video-ati 1:6.12.99+git20090825.fc74e119-0ubuntu3 SourcePackage: xserver-xorg-video-intel Uname: Linux 2.6.31-12-generic i686 XorgConf: Error: [Errno 13] Permission denied: '/etc/X11/xorg.conf' dmi.bios.date: 05/09/2005 dmi.bios.version: 3.26 dmi.board.name: Gamila/Giovani/Neon series dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD dmi.board.version: 030 dmi.chassis.type: 3 dmi.modalias: dmi:bvn&oenixTechnologies,LTD:bvr3.26:bd05/09/2005:svnHewlett-Packard:pnPPPPPP-ABAMMMMM:pvr:rvnMICRO-STARINTERNATIONALCO.,LTD:rnGamila/Giovani/Neonseries:rvr030:cvn:ct3:cvr: dmi.product.name: PPPPPP-ABA MMMMM dmi.sys.vendor: Hewlett-Packard fglrx: Not loaded system: distro: Ubuntu architecture: i686kernel: 2.6.31-12-generic [lspci] 00:02.0 VGA compatible controller [0300]: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device [8086:2562] (rev 03) Subsystem: Micro-Star International Co., Ltd. Device [1462:5778] 01:0a.0 VGA compatible controller [0300]: nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x] [10de:0181] (rev a4) Subsystem: eVga.com. Corp. Device [3842:b089] To manage notifications about this bug go to: https://bugs.launchpad.net/module-init-tools/+bug/446641/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp