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[gm45] T400/T500/W500 with hybrid graphics won't display anything (ever) #19

Closed ArthurHeymans closed 7 years ago

ArthurHeymans commented 7 years ago

A hybrid driver was merged to handle all Lenovo laptops with hybrid graphics, but it fails to configure the display mux correctly on gm45 laptops with hybrid graphics. https://review.coreboot.org/12896

The results is that neither in coreboot/payload, nor in Linux the display works. This a potential fix but I can't test it due to the lack of actual hardware: https://review.coreboot.org/16354. (Hardware needs to have an Ati card)

ghost commented 7 years ago

Seems to be fixed upstream: https://review.coreboot.org/#/c/18010/