Ok I've switched to dark theme of Plasma repeating the procedure. PLASMA has problems. I noted that sometimes opening the start menu some graphical issue was visible, but now I can state that there are graphical problems about the desktop environment. It is possible to see this issue in the attachment: the visible dark squares are the start menu affected by glitches.
** Attachment added: "Screenshot_20170721_110926.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1704374/+attachment/4918736/+files/Screenshot_20170721_110926.png -- 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/1704374 Title: system randomly hangs itself Status in linux package in Ubuntu: Incomplete Bug description: this problem affect my system on Kubuntu 17.04 64bit Kde Plasma: 5.10.3 kernel: 4.10.0.26 Kde frameworks: 5.36.0 Qt release: 5.7.1 Probably I've solved with GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=1" Randomly the operating system hangs both eist and or c1e options enabled or disabled. I hope that Kubuntu has not damaged my hardware. However what kind of workaround should be made on the klernel to have this problem solved once and forever? My hardware specs: maximus eteme; latest bios; 8gb ram 4x2gb corsaire xms 1333; gigabyte gt 730 1gb OC xonar d2x. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-4.10.0-26-generic 4.10.0-26.30 ProcVersionSignature: Ubuntu 4.10.0-26.30-generic 4.10.17 Uname: Linux 4.10.0-26-generic x86_64 ApportVersion: 2.20.4-0ubuntu4.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: james 1353 F.... pulseaudio /dev/snd/controlC1: james 1353 F.... pulseaudio CurrentDesktop: KDE Date: Fri Jul 14 12:39:32 2017 InstallationDate: Installed on 2017-04-25 (79 days ago) InstallationMedia: Kubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) IwConfig: enp4s0 no wireless extensions. lo no wireless extensions. MachineType: System manufacturer Maximus Extreme ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-26-generic root=UUID=52f9b441-fe75-4643-bbec-f912736d397b ro quiet splash intel_idle.max_cstate=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.10.0-26-generic N/A linux-backports-modules-4.10.0-26-generic N/A linux-firmware 1.164.1 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/24/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1302 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: Maximus Extreme dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1302:bd03/24/2009:svnSystemmanufacturer:pnMaximusExtreme:pvrSystemVersion:rvnASUSTeKComputerINC.:rnMaximusExtreme:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: Maximus Extreme dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1704374/+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
