I just installed 'linux 3.18.0 rc7' : - After regular boot, graphical login systematically fails.
- After a boot in 'recovery mode' (which includes the 'nomodeset' parameter), graphical login systematically succeeds, but Cinnamon complains that the graphical driver lacks support for hardware acceleration, and Cinnamon works in software rendering mode. - After having replaced 'quiet splash' by 'nomodeset' in the 'regular boot' menu entry of 'grub.cfg' and rebooted, the behavior is exactly the same as in 'recovery mode'. I see that you have added a tag requesting a crash log. I am willing to provide it. Can you explain where I can find a crash log, or how I can trigger its generation ? -- 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/1396840 Title: Module nouveau systematically crashes after a few minutes, whereas module nvidia from nvidia-331-updates crashes only after several hours of work Status in linux package in Ubuntu: Incomplete Bug description: Module 'nouveau' systematically crashes after a few minutes, whereas module 'nvidia' from 'nvidia-331-updates' crashes only after several hours of work. $ uname -r 3.16.0-25-generic $ dpkg-query -W 'linux-*image-*3.16.0-25*' linux-image-3.16.0-25-generic 3.16.0-25.33 linux-image-extra-3.16.0-25-generic 3.16.0-25.33 linux-signed-image-3.16.0-25-generic 3.16.0-25.33 $ lsmod | head -1 ; lsmod | grep '^nouveau' Module Size Used by nouveau 1234845 3 $ sudo lspci -nn -vv -s 03:00.0 03:00.0 VGA compatible controller [0300]: NVIDIA Corporation C79 [GeForce 9400] [10de:0867] (rev b1) (prog-if 00 [VGA controller]) Subsystem: Apple Inc. iMac 9,1 [106b:00ad] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 256 bytes Interrupt: pin A routed to IRQ 45 Region 0: Memory at d2000000 (32-bit, non-prefetchable) [size=16M] Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M] Region 3: Memory at d0000000 (64-bit, prefetchable) [size=32M] Region 5: I/O ports at 1000 [size=128] Expansion ROM at d3000000 [disabled] [size=128K] Capabilities: [60] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0300c Data: 4152 Kernel driver in use: nouveau ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-extra-3.16.0-25-generic 3.16.0-25.33 ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7 Uname: Linux 3.16.0-25-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: urbah 3073 F.... pulseaudio CurrentDesktop: GNOME Date: Thu Nov 27 02:05:32 2014 HibernationDevice: RESUME=UUID=d78e46a2-825e-4ad0-8f14-c7d2935c33c7 InstallationDate: Installed on 2014-11-03 (23 days ago) InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: Apple Inc. iMac9,1 ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-25-generic.efi.signed root=UUID=b587542c-4076-491a-ae4d-21942b20daf6 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.16.0-25-generic N/A linux-backports-modules-3.16.0-25-generic N/A linux-firmware 1.138 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/27/09 dmi.bios.vendor: Apple Inc. dmi.bios.version: IM91.88Z.008D.B08.0904271717 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F2218FC8 dmi.board.vendor: Apple Inc. dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 13 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F2218FC8 dmi.modalias: dmi:bvnAppleInc.:bvrIM91.88Z.008D.B08.0904271717:bd04/27/09:svnAppleInc.:pniMac9,1:pvr1.0:rvnAppleInc.:rnMac-F2218FC8:rvr:cvnAppleInc.:ct13:cvrMac-F2218FC8: dmi.product.name: iMac9,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1396840/+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