Can anyone help?
My discrete graphics card (a Radeon HD 6970M) in my laptop has failed. There is no way to disable it in the BIOS and I can't remove the MXM from the motherboard. I'm able to disable it in Safe Mode for Windows but, as luck would have it, my windows installation has become corrupt too...
I have a USB pendrive installation of Ubuntu 16.04 that I use but, when it boots it tries to activate the AMD card immediately after the initial load before the menu appears. I just get a blank screen.
Is there a way I can modify the contents of the USB pendrive to force it to load using integrated graphics and ignore the defective Radeon?
I've seen a few threads advising using radeon.runpm=0 or radeon.modeset=0 options for grub but given I can't boot linux to run update-grub. The other way was using vgaswitcheroo but I can't see how to do that on the pendrive image.
Any advice would be greatly appreciated.