On Mon, 27 Apr 2020 16:33:54 -0000 "Sreyan Chakravarty" <sreyan32@xxxxxxxxx> wrote: > How would you solve this in X ? Caveat, I have never had to deal with this issue because I have never had two gpus. But, here goes. If you want to be sure that only the gpu you desire runs, you need to ensure that the driver for the other is not loaded, or the gpu you want to use is explicitly selected. I recall you saying that you have no way of turning off the intel gpu from the bios. Is that true? Check at the website of the builder of your laptop, and maybe ask them if it is possible. That's the simplest solution. No dice? Next thing to try is to put a file in /etc/modprobe.d blacklisting the intel module. See man modprobe.d for how to do that. lsmod should show you the name of the intel module. I think it is i915. This will only work if the module is not built into the kernel, which is unlikely, but worth a try. You can check by doing a grep -i i915 [boot/config-blahblah] of the config file for the kernel you are running in /boot. I am running a custom kernel with it disabled, so can't check what stock fedora kernels do, or the correct term to use in the grep. I was going to suggest building a kernel without the intel driver either built in or loadable next, but I found this link and learned something. You could try the technique described therein. It uses xrandr, so needs to be used under X. https://unix.stackexchange.com/questions/578666/how-do-i-switch-my-display-controller-to-radeon-instead-of-the-built-in-intel-gr If that doesn't work, I would still try building a custom kernel without i915 support, but with support for the other gpu. The kernel should then default to using the only gpu, though I'm less sure of that after reading the above article, and its comments about muxless gpus. https://fedoraproject.org/wiki/Building_a_custom_kernel _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
