@Adam, interesting. Indeed your problem also appears to be distinct from the OP. It looks like you have a hybrid graphics system and both intel and nouveau drivers are loading. It sounds like the nouveau driver isn't detecting any connected outputs and eventually unloads itself. The modesetting driver decides to load up after that for some reason, and immediately proceeds to segfault.
>From your comment #39 it sounds like with the patch, X is getting further along? Looking at your original bug (#1125759) you had been seeing this problem early on, which broke everything subsequent to it: [ 3.579] (II) config/udev: Adding drm device (/dev/dri/card1) [ 4.377] (II) config/udev: Adding drm device (/dev/dri/card0) [ 4.377] setversion 1.4 failed <--- oops [ 4.379] (--) PCI:*(0:0:2:0) 8086:0126:1028:0446 rev 9, Mem @ 0xf1400000/4194304, 0xe0000000/268435456, I/O @ 0x00004000/64 [ 4.379] (--) PCI: (0:1:0:0) 10de:0df5:1028:0446 rev 161, Mem @ 0xf0000000/16777216, 0xc0000000/268435456, 0xd0000000/33554432, I/O @ 0x00003000/128, BIOS @ 0x????????/524288 Now you're seeing this: [ 3.610] (II) config/udev: Adding drm device (/dev/dri/card1) [ 5.309] (II) config/udev: Adding drm device (/dev/dri/card0) [ 5.311] (--) PCI:*(0:0:2:0) 8086:0126:1028:0446 rev 9, Mem @ 0xf1400000/4194304, 0xe0000000/268435456, I/O @ 0x00004000/64 [ 5.311] (--) PCI: (0:1:0:0) 10de:0df5:1028:0446 rev 161, Mem @ 0xf0000000/16777216, 0xc0000000/268435456, 0xd0000000/33554432, I/O @ 0x00003000/128, BIOS @ 0x????????/524288 I would expect the patch to show some debug info if it is applying its fix; it should display a stream of "drm device not ready (#), sleeping for 20us" messages, and then the system should boot up to fully functional (or some permutation thereof). So, I'm not sure we can say the patch fixed it for you; it could be just coincidental. This is a race condition after all, and as such can be influenced by all manner of random things, and maybe it just had lucky timing on that boot. As to the modesetting segfault, that would be worth tracking as its own bug. Did a crash file get generated for that in /var/crash/ ? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/982889 Title: X trying to start before plymouth has finished using the drm driver Status in “libdrm” package in Ubuntu: Triaged Status in “linux” package in Ubuntu: Confirmed Status in “xorg-server” package in Ubuntu: In Progress Bug description: X server fails to start the first time after boot, it works fine when I start it again. Looks like a race condition with intel drm initialization, i guess X tries to start faster than drm driver is initialized so it fails. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu3 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: compiz Date: Mon Apr 16 10:35:28 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. Device [1462:7750] Advanced Micro Devices [AMD] nee ATI Barts XT [ATI Radeon HD 6800 Series] [1002:6738] (prog-if 00 [VGA controller]) Subsystem: Giga-byte Technology Device [1458:21fa] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301) MachineType: MSI MS-7750 ProcEnviron: LANGUAGE=en_US:en TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-23-generic root=/dev/mapper/ssd-ubuntu--precise ro quiet splash SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/25/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V4.0 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z68A-G43 (G3) (MS-7750) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV4.0:bd08/25/2011:svnMSI:pnMS-7750:pvr1.0:rvnMSI:rnZ68A-G43(G3)(MS-7750):rvr1.0:cvnMSI:ct3:cvr1.0: dmi.product.name: MS-7750 dmi.product.version: 1.0 dmi.sys.vendor: MSI version.compiz: compiz 1:0.9.7.6-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/982889/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp