Eric, I can confirm that removing the nvidia-current and nvidia-settings packages solved the problem for me as well.
Updating bug description for temporary fix... Hope they can fix this ASAP, provided it is an LTS. ** Description changed: I just did a full Install of Ubuntu 12.04 daily-live. Unity defaults to Unity-2d, with many issues therein (tearing, etc.) It is the first time I fully install 12.04, but I have been regularly trying daily-builts from live-usb-stick... Never had issues, if anything everything seamed snappier and faster than 11.10. I have a hybrid system, and to date I have always been using by default the grapbhic drivers for my integrated i7 graphics card. I now see it defaults to the Nouveau drivers, that must be the cause of the regression. + + TEMPORARY FIX: Removing packages "nvidia-current" and "nvidia-settings" + should do the job. Hope this gets fixed soon... ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: unity 5.10.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 295.40 Thu Apr 5 21:37:00 PDT 2012 GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ApportVersion: 2.0.1-0ubuntu5 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: None Date: Tue Apr 24 20:47:24 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu DkmsStatus: nvidia-current, 295.40, 3.2.0-23-generic, x86_64: installed GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:04b6] NVIDIA Corporation GF108 [GeForce GT 540M] [10de:0df5] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:04b6] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423) MachineType: Dell Inc. Dell System XPS L502X ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=6f4b72aa-8077-4a62-bf02-70130fccc9cc ro quiet splash vt.handoff=7 SourcePackage: unity UnitySupportTest: Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code 5: Xlib: extension "GLX" missing on display ":0.0". Error: GLX is not available on the system UpgradeStatus: No upgrade log present (probably fresh install) XorgConf: Section "Device" Identifier "Default Device" Option "NoLogo" "True" EndSection dmi.bios.date: 07/20/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 0YR8NN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA06:bd07/20/2011:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn0YR8NN:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L502X dmi.sys.vendor: Dell Inc. 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.nvidia-graphics-drivers: nvidia-graphics-drivers N/A 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 ** Description changed: I just did a full Install of Ubuntu 12.04 daily-live. Unity defaults to Unity-2d, with many issues therein (tearing, etc.) It is the first time I fully install 12.04, but I have been regularly trying daily-builts from live-usb-stick... Never had issues, if anything everything seamed snappier and faster than 11.10. I have a hybrid system, and to date I have always been using by default the grapbhic drivers for my integrated i7 graphics card. I now see it defaults to the Nouveau drivers, that must be the cause of the regression. TEMPORARY FIX: Removing packages "nvidia-current" and "nvidia-settings" - should do the job. Hope this gets fixed soon... + and restarting your system should do the job. Hope this gets fixed + soon... ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: unity 5.10.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 295.40 Thu Apr 5 21:37:00 PDT 2012 GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ApportVersion: 2.0.1-0ubuntu5 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: None Date: Tue Apr 24 20:47:24 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu DkmsStatus: nvidia-current, 295.40, 3.2.0-23-generic, x86_64: installed GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:04b6] NVIDIA Corporation GF108 [GeForce GT 540M] [10de:0df5] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:04b6] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423) MachineType: Dell Inc. Dell System XPS L502X ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=6f4b72aa-8077-4a62-bf02-70130fccc9cc ro quiet splash vt.handoff=7 SourcePackage: unity UnitySupportTest: Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code 5: Xlib: extension "GLX" missing on display ":0.0". Error: GLX is not available on the system UpgradeStatus: No upgrade log present (probably fresh install) XorgConf: Section "Device" Identifier "Default Device" Option "NoLogo" "True" EndSection dmi.bios.date: 07/20/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 0YR8NN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA06:bd07/20/2011:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn0YR8NN:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L502X dmi.sys.vendor: Dell Inc. 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.nvidia-graphics-drivers: nvidia-graphics-drivers N/A 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/987949 Title: Ubuntu 12.04 - Severe Graphics Regression on Hybrid System with Integrated Intel HD300 graphics and NVIdia OPTIMUS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/987949/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs