I was experiencing regular crashes and graphical glitching with KDE Plasma 5 after upgrading to 15.10 and after discovering this bug I decided to upgrade my kernel to the latest -wily version (http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2.5-wily/). That seems to have corrected the issue. The glitching has gone away and no crashes so far after about 20 minutes of use with intensive WebGL utilization (which was what was causing the crashes previously).
-- 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/1509556 Title: Kubuntu Wily upgrade screen glitch with 4.2 kernel Status in linux package in Ubuntu: Incomplete Bug description: On recent update from 15.04 to 15.10, the new 4.2 kernel is associated with graphics instability after a few seconds of GUI use with mouse and keyboard making the GUI unusable. See another person's same experience with intel graphics here: askubuntu.com/questions/688649/kubuntu-wily-upgrade-screen-glitch Downgrading to the last 15.04 kernel solves my issue. See result of ubuntu-bug linux from the terminal attached. --- ApportVersion: 2.19.1-0ubuntu3 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bryan 2415 F.... pulseaudio CurrentDesktop: LXDE DistroRelease: Ubuntu 15.10 HibernationDevice: RESUME=UUID=29d7b701-8e5f-4cd6-8cfb-be150e1ea27f InstallationDate: Installed on 2012-09-26 (1122 days ago) InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Release i386 (20120423) IwConfig: lo no wireless extensions. eth0 no wireless extensions. MachineType: Dell Inc. OptiPlex GX280 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=5658fec6-3afb-4e3e-b668-812316cc9ca6 ro quiet splash ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 RelatedPackageVersions: linux-restricted-modules-4.2.0-16-generic N/A linux-backports-modules-4.2.0-16-generic N/A linux-firmware 1.149 RfKill: Tags: wily Uname: Linux 4.2.0-16-generic i686 UpgradeStatus: Upgraded to wily on 2015-10-23 (0 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/29/2005 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0FG113 dmi.board.vendor: Dell Inc. dmi.chassis.type: 15 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd11/29/2005:svnDellInc.:pnOptiPlexGX280:pvr:rvnDellInc.:rn0FG113:rvr:cvnDellInc.:ct15:cvr: dmi.product.name: OptiPlex GX280 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1509556/+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
