The graphics card on a laptop has been giving errors and lately just see a blank screen, but it does work sometimes. I have been using an external monitor connected to the HDMI port, it is setup under display config. as a replica of the laptop screen. Can I change the system display configuration to only use the external monitor ? Set it as primary and disable the laptop screen ? Will that cause any problems with booting, and will it require some BIOS changes for the video/graphics ?
Basically change all configuration (BIOS and Display settings) so that the laptop screen is completely disabled, and Kubuntu only uses the external monitor through the HDMI port.
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