Maybe to fix this PCIe GPU issue he just needs to edit a *./coreboot/src/device/Kconfig *file?
*./coreboot/src/device/Kconfig* change config MULTIPLE_VGA_ADAPTERS bool default n to config MULTIPLE_VGA_ADAPTERS bool default y and completely rebuild the coreboot I enabled these options for my G505S laptop with both integrated/discrete graphic, however I am not a gamer so can't notice if there is any positive effect from this option. But maybe this option will significantly improve the thread starter's eGPU experience? What do you think ? 2017-02-28 0:57 GMT+03:00 Arthur Heymans <[email protected]>: > Stefan Reinauer <[email protected]> writes: > > > * [email protected] <[email protected]> [170226 > 21:59]: > >> Hardware: Gigabyte g41m-es2l, latest coreboot git, latest seabios git, > two > >> nvidia gpu cards tested > >> > >> I tried to use some external GPU on a g41m-es2l to get some digial > screen > >> output. It does not seem to work. When having build coreboot with native > >> vga-init for the internal intel gpu, i never get a output from the > nvidia card. > >> When i connect the analog VGA cable to the internal intel gpu and boot > up i can > >> see many nouveau (memory-space?) errors. Both GPUs (nvidia and intel) > are then > >> enabled at once. Kernel 4.10 cant boot. > >> > >> I tried removing the native vga-init. The only change is then that the > Intel > >> GPU works only when the kernel have load. Nvidia card deliver still same > >> errors. > >> > >> With OEM-bios the intel card gets disabled and a PCIe GPU works fine. > > > > Please provide coreboot boot logs. > > > > Stefan > > Actually https://review.coreboot.org/#/c/18504/ > https://review.coreboot.org/#/c/18511/ (not sure if needed) and > https://review.coreboot.org/#/c/18513/ (works but might be improved) > fix this issue. > > -- > Arthur Heymans > > -- > coreboot mailing list: [email protected] > https://www.coreboot.org/mailman/listinfo/coreboot >
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