<div dir="ltr">Page 4-27 in your manual (page 97 of the PDF) shows "VGA Priority" option. In your bios go to the "Advanced Tab", select "PCIe/PCI/PnP Configuration" and it should be on that page.</div> <div class="gmail_quote"><div dir="ltr">On Tue, Nov 17, 2015 at 2:21 PM Erik Adler <<a href="mailto:erik.adler@gmail.com">erik.adler@gmail.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">> I know on my motherboard (SuperMicro X9DR7-LN4F) they recommending setting the VGA jumper to disabled. I think even > though you can set priority in the BIOS, setting the jumper disables onboard completely. Might be worth a shot. There is a jumper to disable graphics on this mobo. Ill be sure to try it out at first chance. I can't find anything about gpu priority in the bios though. On Tue, Nov 17, 2015 at 6:00 PM, Ryan Flagler <<a href="mailto:ryan.flagler@gmail.com" target="_blank">ryan.flagler@gmail.com</a>> wrote: > I know on my motherboard (SuperMicro X9DR7-LN4F) they recommending setting > the VGA jumper to disabled. I think even though you can set priority in the > BIOS, setting the jumper disables onboard completely. Might be worth a shot. > > On Tue, Nov 17, 2015 at 7:14 AM Erik Adler <<a href="mailto:erik.adler@gmail.com" target="_blank">erik.adler@gmail.com</a>> wrote: >> >> >Your X11 fails to start or what? >> >If so... >> >Setting BusID parameter in xorg.conf should help starting any non primary >> > GPU. >> >Whatever the host bios outputs via GTX980 shouldn't worry you much. >> >> Thanks for your input. >> Actually I don't get any video out. The only way for be to get back into >> BIOS was to pull out one of the GPUs. I needed to do this to set the BIOS >> back to internal graphics. Seems to be long before the OS kicks in. >> >> That is why I was wondering if there is a known hardware limitation. On my >> own system (Z10PE-D8) I have passed three GPUs but was using the internal >> video for the host. When I am back in my home town Ill have to give this a >> try. >> >> On Tue, Nov 17, 2015 at 6:38 AM, Blank Field <<a href="mailto:ihatethisfield@gmail.com" target="_blank">ihatethisfield@gmail.com</a>> >> wrote: >>> >>> Your X11 fails to start or what? >>> If so... >>> Setting BusID parameter in xorg.conf should help starting any non primary >>> GPU. >>> Whatever the host bios outputs via GTX980 shouldn't worry you much. >>> >>> On Nov 17, 2015 4:57 AM, "Erik Adler" <<a href="mailto:erik.adler@gmail.com" target="_blank">erik.adler@gmail.com</a>> wrote: >>>> >>>> *** WARNING: THE ATTACHED DOCUMENT(S) CONTAIN MACROS *** >>>> *** MACROS MAY CONTAIN MALICIOUS CODE *** >>>> *** Open only if you can verify and trust the sender *** >>>> *** Please contact <a href="mailto:infosec@redhat.com" target="_blank">infosec@redhat.com</a> if you have questions or concerns >>>> ** >>>> >>>> >>>> So I am testing a Supermircro X10DRi board with a Strix GTX980 GPUs. The >>>> CPUs are dual Intel Xeon E5-2630v3. The CPU's do not have built in >>>> graphics but there is a video source on the mainboard. A ASPEED AST2400 BMC. >>>> It is the crappy AST2400 that I am using for the host video. >>>> >>>> When I leave this facility the owners of this machine plan on later >>>> dropping in a 2ed identical GTX980 GPU for passthough. Hopefully Alex's >>>> vfio-pci-override-vga.sh can deal with that. >>>> >>>> The host machine is using BIOS not UEFI to boot. The guest is using >>>> libvirt, EDK2, qemu2.5, virt-manager and Linux 4.1.6 on Debian testing. The >>>> single Windows10 guest and GPU works flawless. >>>> >>>> The problem >>>> >>>> The AST2400 video chip sucks. I would like to drop in a cheapo Nvidia >>>> GF210 to deal with the host graphics. This is not a EFI GPU but the host is >>>> using BIOS so I would think this is not an issue. I instruct BIOS to use >>>> external video. The GTX980 is being bound to vfio-pci at init-top or as >>>> early as possible. >>>> >>>> Unfortunately I am not able to get any video out. It is as if both GPU's >>>> want to be boot-vga. I was informed in IRC that you must use a GeForce >>>> GTX980 as the boot GPU. Is that true? >>>> >>>> _______________________________________________ >>>> vfio-users mailing list >>>> <a href="mailto:vfio-users@redhat.com" target="_blank">vfio-users@redhat.com</a> >>>> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >>>> >> >> _______________________________________________ >> vfio-users mailing list >> <a href="mailto:vfio-users@redhat.com" target="_blank">vfio-users@redhat.com</a> >> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> _______________________________________________ vfio-users mailing list <a href="mailto:vfio-users@redhat.com" target="_blank">vfio-users@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> </blockquote></div>