On Wed, 12 March 2014 Ben Johnson <intel-gfx@xxxxxxxxxxxxx> wrote: > My hardware: > Asrock Z77 Extreme4 with iGPU Multi-Monitor enabled. Primary graphics is > set to PCIe but that doesn't make a difference. > i7 3770k / HD 4000 > nVidia GTX 660 running nVidia's binary drivers v334.21, although > multiple versions have the issue > > My software: > Stable Gentoo with gentoo-sources-3.12.13, although multiple kernels > have the issue > > I am trying to use both the HD 4000 graphics and the nVidia card > simultaneously in a single-seat multiple-X-server Zaphod scenario. I > have another cheap nVidia card on order so I don't have any urgent need > and maybe not any need at all to get this working with i915. > > The Zaphod setup works fine with the exception of two problems that > occur only when the i915 driver is loaded with modesetting enabled. > I.e., not loading i915 or setting "nomodeset" or "i915.modeset=0" at > boot resolves the issue, but does not allow the HD 4000 to be used. With > i915 loaded normally: > > 1) The nVidia virtual terminals are messed up. They appear zoomed-in and > don't update. > 2) The nVidia card does not resume correctly from suspend-to-ram. It > prints some errors to dmesg and either doesn't wake the monitor up, or > doesn't ever show the X session again until I reboot. > > I am a C programmer and I don't mind helping to fix this if it turns out > to be relatively simple issue and my help is desired. Is this a known > limitation, and does anyone have a clear idea what the problem is or > where to look? Wild guess, maybe you would have some more chances of success if the nvidia was the GPU with active VGA bits (e.g. telling vga-arbitration to have nvidia card active/primary). That way the nvidia blob would have best changes of living in a tested environment and i915 hopefully being able to do its work anyway. Bruno _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
