Display cables matter a lot because they have to transmit gigabits per second and small imperfections can interrupt that randomly, leading to a temporarily black screen.
The reason a cable might work on Windows but not Linux could be slightly different signalling, if for example Windows is using 24-bit colour and Linux using 30-bit. Then Linux would need more bandwidth to maintain a stable connection. But it could also just be a software bug. If you want to try installing the latest graphics test kernel then download these four deb files: https://kernel.ubuntu.com/mainline/drm-tip/2024-06-04/amd64/ and then install them at the same time: sudo dpkg -i *.deb You probably also need to have Secure Boot DISABLED in the BIOS in order to test such kernels. Since it's a test kernel it's not guaranteed to always work. You can which tell version is running with the command: uname -r -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2069741 Title: [amdgpu] Screen is flickering To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2069741/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
