Guys, maybe I found a solution - nvidia hack.
After I log in, then I run this script: while true ; do nvidia-settings -q all > /dev/null sleep 25 done It works. Somebody wrote it in this thread: https://bugs.launchpad.net/bugs/1251042 This works for me. ** Changed in: nvidia Status: New => Fix Committed ** Changed in: nvidia-graphics-drivers-331 (Ubuntu) Status: Triaged => Fix Committed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-331 in Ubuntu. https://bugs.launchpad.net/bugs/1251042 Title: 10de:064c Ubuntu gnome freeze after start - nvidia drivers Status in Nvidia Feature Request and Bug Reporting: Fix Committed Status in nvidia-graphics-drivers-331 package in Ubuntu: Fix Committed Bug description: I tried to use current proprietary drivers. But after login - monitor is flickering and freezing. A video: There is a video: http://www.youtube.com/watch?v=6NX7lQ5oDYo . I used Gentoo before, and this line helped for me, to solve my problem but in Ubuntu, it doesn't help: options nvidia NVreg_DeviceFileMode=432 NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=27 NVreg_ModifyDeviceFiles=1 NVreg_RegistryDwords="PerfLevelSrc=0x2222" This doesn't help: me@ubuntu-vbi:~$ cat /etc/modprobe.d/options #Fix for nvidia flickering - (K)ubuntu 9.04 and 9.10 options nvidia NVreg_RegistryDwords='PerfLevelSrc=0x2222' options nvidia NVreg_Mobile=1 me@ubuntu-vbi:~$ cat /etc/modprobe.d/options options nvidia NVreg_DeviceFileMode=432 NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=27 NVreg_ModifyDeviceFiles=1 NVreg_RegistryDwords="PerfLevelSrc=0x2222" WORKAROUND: Use nouveau. --- ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: nosek 2827 F.... pulseaudio DistroRelease: Ubuntu 13.10 HibernationDevice: RESUME=UUID=fb299f47-ddfa-4008-8941-f248e28549b0 InstallationDate: Installed on 2013-10-24 (20 days ago) InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64 (20131017) MachineType: To Be Filled By O.E.M. Z97V MarkForUpload: True NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-13-generic root=/dev/mapper/vg--ubnt-ubuntu ro quiet splash ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6 RelatedPackageVersions: linux-restricted-modules-3.11.0-13-generic N/A linux-backports-modules-3.11.0-13-generic N/A linux-firmware 1.116 Tags: saucy Uname: Linux 3.11.0-13-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 09/03/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0702 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: Z97V dmi.board.vendor: To Be Filled By O.E.M. dmi.board.version: 1.00 dmi.chassis.asset.tag: 0x00000000 dmi.chassis.type: 10 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0702:bd09/03/2008:svnToBeFilledByO.E.M.:pnZ97V:pvr1.0:rvnToBeFilledByO.E.M.:rnZ97V:rvr1.00:cvnToBeFilledByO.E.M.:ct10:cvr1.0: dmi.product.name: Z97V dmi.product.version: 1.0 dmi.sys.vendor: To Be Filled By O.E.M. --- ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: nosek 2185 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=ab4bb35d-8475-4d86-b762-5983fdc2b277 InstallationDate: Installed on 2013-12-30 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131225) MachineType: To Be Filled By O.E.M. Z97V MarkForUpload: True NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-7-generic root=UUID=9f125712-21cc-481d-9e19-3a12e9fdbb14 ro quiet splash ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware 1.117 Tags: trusty Uname: Linux 3.12.0-7-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 09/03/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0702 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: Z97V dmi.board.vendor: To Be Filled By O.E.M. dmi.board.version: 1.00 dmi.chassis.asset.tag: 0x00000000 dmi.chassis.type: 10 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0702:bd09/03/2008:svnToBeFilledByO.E.M.:pnZ97V:pvr1.0:rvnToBeFilledByO.E.M.:rnZ97V:rvr1.00:cvnToBeFilledByO.E.M.:ct10:cvr1.0: dmi.product.name: Z97V dmi.product.version: 1.0 dmi.sys.vendor: To Be Filled By O.E.M. 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