Hello, I’m currently using a Dell Latitude 5420 with a Intel Core I5-1145G7, Intel XE Graphics (TGL GT2), With Fedora 40, the laptop screen works sometimes, but most of the times, the system boots, keyboard backlight and other LEDs turn on, but the laptop screen remains off.
Also, in some occasions, if the laptop screen is working and I block the screen or suspend, the laptop screen does not turn on again later.
My current Kernel Version is 6.8.11-300.fc40.x86_64. I also had similar issues when using Ubuntu (20 or 22).
If I plug external monitors, they are recognized.