https://bugs.freedesktop.org/show_bug.cgi?id=75985 --- Comment #23 from Maik Freudenberg --- @Daniel Drake: that's coherent with my investigations, even on a 740M without any outputs setting the bit at 0x488 changes the pci header type to 0x80, multifunction. My idea would be to use the pci_scan_single_device function to add the sub-function device. The really old fakephp driver available in kernels <2.29 would have been useful for general testing, but that's gone AWOL. The later one is useless, tested it. I also want to use the holyday break to do some development on this. What have you been thinking about? -- You are receiving this mail because: You are the assignee for the bug.