Dear Users, in my case, i want to passthrough a pci-e graphiccard to a hvm guest. In the bios i have to select whether the onboard graphic is used as primary vga output or the pci-e one. If i define the onboard one then the pci-e card gets unavailable in xen, furthermore lspci did not show it anymore. if i set the pci-e card as primary, it comes up fine in xen, but if i hide that card which is required for passthrough, vga output becomes unavailable. vga output stops right after that line: Event-channel device installed. netfront: Initialising virtual ethernet driver. how can i force the vga output to the onboard card? its just for debugging purpose to have an output at all. Regards -- Stefan _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Dustin Henning
2008-Oct-29 15:45 UTC
RE: [Xen-users] PCI-E Passthrough - Missing VGA-Output
I believe you would have to buy different hardware to do this. Very few motherboards support running an onboard video card alongside an add-on video card. However, adding a PCI video card for your debugging might work (I don''t really know on that, and it could depend on the mobo as well, it''s just a thought). Dustin -----Original Message----- From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Stefan Bauer Sent: Wednesday, October 29, 2008 07:22 To: xen-users Subject: [Xen-users] PCI-E Passthrough - Missing VGA-Output Dear Users, in my case, i want to passthrough a pci-e graphiccard to a hvm guest. In the bios i have to select whether the onboard graphic is used as primary vga output or the pci-e one. If i define the onboard one then the pci-e card gets unavailable in xen, furthermore lspci did not show it anymore. if i set the pci-e card as primary, it comes up fine in xen, but if i hide that card which is required for passthrough, vga output becomes unavailable. vga output stops right after that line: Event-channel device installed. netfront: Initialising virtual ethernet driver. how can i force the vga output to the onboard card? its just for debugging purpose to have an output at all. Regards -- Stefan _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Stefan Bauer
2008-Oct-29 16:50 UTC
Re: [Xen-users] PCI-E Passthrough - Missing VGA-Output [SOLVED]
Dustin Henning schrieb:> I believe you would have to buy different hardware to do this. Very > few motherboards support running an onboard video card alongside an add-on > video card. However, adding a PCI video card for your debugging might work > (I don''t really know on that, and it could depend on the mobo as well, it''s > just a thought). > DustinThank you for that explanation. if i put the internal graphic card as primary, the PEG-slot is silently ignored. if i put it to a pci graphiccard, the PEG-slot can be used as in my case by xen as passthrough device. that problem is solved now. -- stefan.bauer@cubewerk.de Cubewerk Tel +49 8621 996 02 37 IT-Beratung + Planung Tel +49 179 119 47 67 Verkauf von Hard und Software Fax +49 1212 511057903 Herzog-Otto-Straße 32 http://www.cubewerk.de 83308 Trostberg _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users