I tried "Ubuntu on Wayland". Crash. Logged in. Screen loaded improperly and keyboard and mouse froze; handlers blocked and who knows what else. The screen didn't have the red artifact though; it had a cluster of diagonal black and white scan lines covering about the middle third of the screen, an incomplete population of the left hand tool bar icons I use and none of the desktop icons. The top tool bar seemed complete, but was non-functional.
Tried "Unity" while I was at it, and that was a complete flop post-log-in. Blank screen, except for an oversized audio slider icon at the top right and the cursor arrow, and the cursor was frozen; once again, no handlers. On 1/22/20 8:40 AM, Paul Collinsworth wrote: > 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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1860483 Title: [nouveau] screen background overlaid with scan type artifact in red To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860483/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
