Renze Nicolai has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/38216 )
Change subject: [TESTME]msi/ms7721: fix the VGA-related PCI resource allocation problems ......................................................................
Patch Set 1:
First of all: thank you for putting in such effort to fix issues with this motherboard!
I'd love to review your work but I'm quite busy at the moment. I expect to be able to test this change somewhere around February or March 2020.
(On a sidenote and slightly off-topic: if you're willing to look into stuff for these boards, there are a couple of other issues that might need fixing... the ms7721 board does not properly wake up from sleep mode, doesn't always come back after a reboot and doesn't save settings to nvram properly as well, if you have any idea of why this may be please do let me know!)
Fun thing about the specific issue named in this pr is that I tested the 16x PCIe port using a graphics card when I initially added support for this board to coreboot and it did work back then. What kind of things can I expect to see when testing this patch? Do these "resource allocation problems" cause the external graphics card not to display/initialise properly?