I encountered an issue after advising you that 18.04.3 works. Perhaps it sheds some light on the problem.
It occurred to me that perhaps there is a graphics issue and that part of what I was seeing is contamination of the background image I was using. So I tried to open "Settings" in order to revert to the default image. Didn't work; that is, "Settings" doesn't work. No response. I can click on "Settings" on either toolbar or try to access it through "Show Applications" and no response. What's more, after getting no response there, other stuff is locked out and doesn't respond. I have to reboot to get functionality back. In getting to reboot, the shutdown process does report that anything I've tried to open or start, after trying to reach "Settings", isn't responding, and then it hangs. If I click on "Power down" again at that point, it doesn't, it just puts up an image and stalls (the image it displays is the background image I've been using, without the toolbars and the contaminant artifact!). At that point, I've just hit the power switch. I've not tried "Ubuntu on Wayland" or the test kernel package. I'll see what happens there. I can boot into the prior Linux generic via grub; haven't tried to pull up any apps there, but the image issue was still there. On 1/22/20 12:43 AM, Daniel van Vugt wrote: > OK, thanks. Assuming the bug isn't just hiding and wouldn't reappear > later in 18.04.3 if used long enough, then this implies a fix exists > somewhere in the HWE packages (which are the difference between 18.04 > fully updated and 18.04.3 fully updated). > > The only two sets of HWE packages I can think of that affect graphics > are Xorg and the kernel. > > Firstly Xorg: Does the bug occur if you log into "Ubuntu on Wayland" > instead? > > Secondly the kernel: Does the bug occur if you install the latest test > kernel packages from here? https://kernel.ubuntu.com/~kernel- > ppa/mainline/v5.5-rc7/ Remember to run 'uname -a' to check which kernel > is active. > -- 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/1860483 Title: [nouveau] screen background overlaid with scan type artifact in red Status in linux package in Ubuntu: Incomplete Status in mesa package in Ubuntu: Incomplete Status in mutter package in Ubuntu: Incomplete Bug description: My desktop has both it's usual items in place; toolbar on left and desktop icons distributed around the screen. Then there's what appears to be a bunch of scan line, raster line artifacts, in red, laid over my normal background, which is a star field photo on what is ordinarily a black field. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7.1 ProcVersionSignature: Ubuntu 4.15.0-74.84-generic 4.15.18 Uname: Linux 4.15.0-74-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.9-0ubuntu7.9 Architecture: amd64 CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Jan 21 13:04:20 2020 DistUpgraded: 2018-10-03 14:38:19,863 DEBUG icon theme changed, re-reading DistroCodename: bionic DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: NVIDIA Corporation G72 [GeForce 7300 LE] [10de:01d1] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell G72 [GeForce 7300 LE] [1028:0405] InstallationDate: Installed on 2016-08-19 (1249 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Dell Inc. Inspiron 531 ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-74-generic root=UUID=08d8f7c1-e351-4abe-8ebe-443d6a751497 ro plymouth:debug=1 quiet splash vt.handoff=1 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to bionic on 2018-10-03 (474 days ago) dmi.bios.date: 11/09/2007 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.0.7 dmi.board.name: 0RY206 dmi.board.vendor: Dell Inc. dmi.board.version: ��� dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnDellInc.:bvr1.0.7:bd11/09/2007:svnDellInc.:pnInspiron531:pvr00:rvnDellInc.:rn0RY206:rvr:cvnDellInc.:ct3:cvrChassisVersion: dmi.product.name: Inspiron 531 dmi.product.version: 00 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1 version.libdrm2: libdrm2 2.4.99-1ubuntu1~18.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.1-1ubuntu1~18.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.1-1ubuntu1~18.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 xserver.bootTime: Wed Oct 3 10:41:28 2018 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input Dell Dell USB Keyboard KEYBOARD, id 8 input Logitech USB Trackball MOUSE, id 9 xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.4-0ubuntu0.8 xserver.video_driver: nouveau To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860483/+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
