Dual Graphics Controller Issue
Posted: 2017/08/16 17:14:34
I'm experiencing a weird issue with dual graphics -
I have a server motherboard that has a built in graphics controller manufactured by ASPeed, the built in controller is there to support IPMI/KVM functionality; this controller is directly tied to the VGA port on the motherboard. There is a bios setting that allows you to also enable any integrated graphics controllers for the purpose of hardware acceleration i.e. QuickSync, VAAPI etc...
Having enabled this feature I no longer get an output via VGA - I do for Grub and Plymouth, but once the boot process completes the screen switches off. I suspect that the Kernel is outputting to a phantom display, but I'm not really sure how to handle this because this is a server and is not running Xorg or any kind of graphical environment.
So I don't want to disable the Intel controller because I'd like to use it for VAAPI, but I also don't want to output to it. Does anyone have any suggestions?
I have a server motherboard that has a built in graphics controller manufactured by ASPeed, the built in controller is there to support IPMI/KVM functionality; this controller is directly tied to the VGA port on the motherboard. There is a bios setting that allows you to also enable any integrated graphics controllers for the purpose of hardware acceleration i.e. QuickSync, VAAPI etc...
Having enabled this feature I no longer get an output via VGA - I do for Grub and Plymouth, but once the boot process completes the screen switches off. I suspect that the Kernel is outputting to a phantom display, but I'm not really sure how to handle this because this is a server and is not running Xorg or any kind of graphical environment.
So I don't want to disable the Intel controller because I'd like to use it for VAAPI, but I also don't want to output to it. Does anyone have any suggestions?