Public bug reported: Hardware: Asus K53BR Ubuntu 14.04 64bit won't boot unlesss 'nomodeset' option is enabled. Here is relevant section from Xorg.0.log I believe:
[ 38.297] (II) [KMS] drm report modesetting isn't supported. [ 38.298] (II) [KMS] drm report modesetting isn't supported. [ 38.298] (II) [KMS] drm report modesetting isn't supported. [ 38.298] (II) [KMS] drm report modesetting isn't supported. [ 38.298] (II) [KMS] drm report modesetting isn't supported. [ 38.298] (II) [KMS] drm report modesetting isn't supported. [ 38.299] (II) [KMS] drm report modesetting isn't supported. [ 38.299] (II) [KMS] drm report modesetting isn't supported. [ 38.299] (WW) Falling back to old probe method for modesetting [ 38.299] (II) Loading sub module "fbdevhw" [ 38.299] (II) LoadModule: "fbdevhw" [ 38.300] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 38.314] (II) Module fbdevhw: vendor="X.Org Foundation" [ 38.315] compiled for 1.15.1, module version = 0.0.2 [ 38.315] ABI class: X.Org Video Driver, version 15.0 [ 38.315] (**) FBDEV(8): claimed PCI slot 0@0:1:0 [ 38.315] (II) FBDEV(8): using default device [ 38.315] (WW) Falling back to old probe method for vesa [ 38.315] (EE) Screen 0 deleted because of no matching config section. [ 38.315] (II) UnloadModule: "radeon" [ 38.315] (EE) Screen 0 deleted because of no matching config section. [ 38.315] (II) UnloadModule: "radeon" [ 38.315] (EE) Screen 0 deleted because of no matching config section. [ 38.315] (II) UnloadModule: "radeon" [ 38.315] (EE) Screen 0 deleted because of no matching config section. [ 38.315] (II) UnloadModule: "radeon" [ 38.315] (EE) Screen 0 deleted because of no matching config section. [ 38.315] (II) UnloadModule: "radeon" [ 38.315] (EE) Screen 0 deleted because of no matching config section. [ 38.315] (II) UnloadModule: "radeon" [ 38.316] (EE) Screen 0 deleted because of no matching config section. [ 38.316] (II) UnloadModule: "modesetting" [ 38.316] (EE) Screen 0 deleted because of no matching config section. [ 38.316] (II) UnloadModule: "modesetting" ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xserver-xorg-video-radeon 1:7.3.0-1ubuntu3 ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 .tmp.unity.support.test.1: ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Sat May 10 18:37:28 2014 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6320] [1002:9806] (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:2108] Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] [1002:6760] (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Radeon HD 7470M [1043:2108] InstallationDate: Installed on 2014-05-10 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: ASUSTeK Computer Inc. K53BR ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=b9724cb2-3973-4605-85f1-2f1777afd02a ro nomodeset quiet splash vt.handoff=7 Renderer: Software SourcePackage: xserver-xorg-video-ati UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/25/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 207 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: K53BR dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr207:bd04/25/2012:svnASUSTeKComputerInc.:pnK53BR:pvr1.0:rvnASUSTeKComputerInc.:rnK53BR:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: K53BR dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Sat May 10 18:30:55 2014 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.15.1-0ubuntu2 ** Affects: xserver-xorg-video-ati (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1318202 Title: System won't boot unless nomodeset option is selected [ubuntu 14.04] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1318202/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs