I’ve noticed that my secondary monitor usually doesn’t turn on initially. In order to get it to turn on, I can do a restart after the initial boot and then it will turn on. Any idea what might be causing this or how to fix it? The monitor is hooked up through the laptop’s hdmi port.

Fedora 42

KDE Plasma

Wayland

Nvidia RTX 4070

  • DeltaWingDragon@sh.itjust.works
    1·
    1 day ago

    Here’s how to disable the GPU drivers:

    Remove “nomodeset” from the GRUB_CMDLINE_LINUX variable in /etc/default/grub

    Add “rd.driver.blacklist=nouveau modprobe.blacklist=nouveau” to GRUB_CMDLINE_LINUX instead

    Run sudo update-grub then reboot

    Note: This only works if you’re using the open-source drivers, known as Nouveau. If you’re using the proprietary drivers, this will not work.

    To check if you’re using Nouveau or the proprietary drivers, run lspci and check for “NVIDIA”, then run lsmod and check for Nouveau.

    Remember to change it back when you want to re-enable the NVIDIA drivers.

    (PS: I used this website as a source, their procedure is more complicated.)