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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1881537 Title: 20.04 - Screen problem (vertical green lines) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/meta-gnome3/+bug/1881537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs