Thanks, Christopher, again for swift reply. I have tested the following kernels: 4.1.0-040100rc2-generic 4.0.7-040007-generic 3.19.8-031908-generic
While I managed to boot the system (Lenovo t450s), for none of these cases WLAN worked. Furthermore, problems with building the kernels had been observed, which seem to be related to the use of Intel Graphics for Linux. During 5 cycles of suspend/resume the problem could not be observed. However, also for the current default kernel (3.16.0-41-generic) I observed the problem sometimes to occur less frequently. Given the fact that the current install is not fully inline with default 14.10 (due to use of Intel Graphics for Linux) and the fact that problem is not sufficiently frequently reproducible, I suggest that I will collect further observations and try to install 15.04 asap to eliminate deviations from standard installation. For the time being I keep this in state Incomplete. -- 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/1468232 Title: Font corruption Intel Broadwell graphics Status in linux package in Ubuntu: Incomplete Bug description: After resume from suspend it often happens that fonts are corrupted. WORKAROUND: Set AccelMethod to "uxa". ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: xorg 1:7.7+7ubuntu2 ProcVersionSignature: Ubuntu 3.16.0-41.57-generic 3.16.7-ckt11 Uname: Linux 3.16.0-41-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.7-0ubuntu8.5 Architecture: amd64 CompizPlugins: [core,composite,opengl,decor,regex,snap,vpswitch,imgpng,compiztoolbox,grid,staticswitcher,mousepoll,move,resize,place,gnomecompat,dbus,animation,expo,ring,workarounds,fade,session,kdecompat,scale] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Wed Jun 24 10:16:47 2015 DistUpgraded: Fresh install DistroCodename: utopic DistroVariant: ubuntu DkmsStatus: i915-3.19.2-3.16, 1, 3.16.0-41-generic, x86_64: installed virtualbox, 4.3.18, 3.16.0-41-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:5036] InstallationDate: Installed on 2015-06-18 (6 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENOVO 20BX000XGE ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-41-generic root=UUID=ef80ed28-52d5-4bee-b65c-a543a2b68df4 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/23/2014 dmi.bios.vendor: LENOVO dmi.bios.version: JBET41WW (1.06 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BX000XGE dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET41WW(1.06):bd12/23/2014:svnLENOVO:pn20BX000XGE:pvrThinkPadT450s:rvnLENOVO:rn20BX000XGE:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BX000XGE dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.59-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.1-0intel1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.1-0intel1 version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2 xserver.bootTime: Tue Jun 23 16:15:38 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1133 vendor LGD xserver.version: 2:1.16.0-1ubuntu1.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1468232/+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
