Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/18564 )
Change subject: mainboard: Add Sapphire Pure Platinum H61 ......................................................................
Patch Set 13:
(1 comment)
https://review.coreboot.org/#/c/18564/13//COMMIT_MSG Commit Message:
PS13, Line 47: * If an external card is inserted and the option : ONBOARD_VGA_IS_PRIMARY is not enabled, the internal GPU : disappears completely from the PCI bus.
IMO, this is completely an unexpected behaviour, as many users (me included
I'm not entirely sure IGD can work when it's not PRIMARY. uma resources (somewhat accidentally) are still allocated on sandy/ivy bridge, so just removing that line in disable_peg() should provide an answer if this is possible.