Comment 8 for bug 2069741

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