> > The errors > > > > [ 3.778476] [drm:r100_ring_test] *ERROR* radeon: ring test failed > > (sracth(0x15E4)=0xCAFEDEAD) > > [ 3.781010] [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22). > > [ 3.782542] radeon 0000:00:04.0: failled initializing CP (-22). > > [ 3.784006] radeon 0000:00:04.0: Disabling GPU acceleration > > > > Seem to be disabling GPU functionality. For now, I am interested in > > Graphics functionality of the ATI card and not GPGPU functionality. > > > > I will appreciate if you can help me with some information on solving > > this problem. Let me know if I should be asking this question on > > another forum. Please keep me in CC. > > Looks like dri-devel material, added to CC. > > As a first guess, maybe the system memory pages accessed by the GPU GART > aren't the same ones intended for this by the VM. I actually have patches for that (sorry for the late reply). Try: git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git devel/ttm.pci-api.v3 But I am not sure if they would make any difference here. You said you are using KVM-QEMU - you must also be using an IOMMU? Does the IOMMU give you any errors? _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
