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 arthur@aheymans.xyz:
Stefan Reinauer stefan.reinauer@coreboot.org writes:
- i1w5d7gf38keg@tutanota.com i1w5d7gf38keg@tutanota.com [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
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