Public bug reported:
I have a Dual-Boot with UBUNTU 18.04 LST and 20.04 LST.
Below 20.04 LST on the screen screen showing vertical green lines - graphics
error. If any application is started, eg Nautilus, there are no green lines
through the running window. They remain only on the desktop. Each time the OS
is started, their position changes.
Detailed station specifications:
Multi-GPU PC, motherboard ASUS_B250_Mining_Expert, integrated Intel HD Graphics
630, a dedicated 7x NVIDIA GeForce GTX 980 Ti.
I use only nVidia for CUDA calculations, the display is sent to Intel HD - by
editing /etc/X11/xorg.conf
Section "ServerLayout"
Identifier "layout"
Screen 0 "intel"
Screen 1 "nvidia1"
EndSection
Section "Device"
Identifier "intel"
Driver "intel"
BusID "PCI:00:02:0"
EndSection
If I switch the desktop display to one of the nVidia tabs, the green lines
disappear.
It looks like a hardware error - Intel HD Graphics 630, but these graphics
errors do not show up on the same configuration under UBUNT 18.04.
** Affects: meta-gnome3 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1881537
Title:
20.04 - Screen problem (vertical green lines)
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