Hi all, Debian sid system. NV34M graphics card (GeForce FX Go5200 64M). I''m trying to get started using Xen on my laptop. CPU is a Pentium 4 with no vmx, so this is all PV. I install the kernel and hypervisor, boot into the Xen dom0, and try to start X so I can launch a web browser and see what to do next. Unfortunately X fails to start. The screen turns black and stays that way, though I can blindly run a few commands. Xorg.0.log has a few hundred (EE) FBDEV(0): FBIOPUTCMAP: Invalid argument lines. Looking more closely, I see that the actual trouble happened a little earlier: dmesg informs me: | [ 8.703713] [drm] nouveau 0000:01:00.0: PFIFO_DMA_PUSHER - Ch 0 Get 0x10000000 Put 0x0000fdc0 State 0xc0000000 (err: MEM_FAULT) Push 0x00000000 | [ 8.704276] Console: switching to colour frame buffer device 175x65 | [ 10.553368] [drm] nouveau 0000:01:00.0: PFIFO_DMA_PUSHER - Ch 0 Get 0x10000000 Put 0x00010048 State 0xc0000000 (err: MEM_FAULT) Push 0x00000000 | [ 12.402789] [drm] nouveau 0000:01:00.0: PFIFO_DMA_PUSHER - Ch 0 Get 0x10000000 Put 0x000101c8 State 0xc0000000 (err: MEM_FAULT) Push 0x00000000 | [ 14.252200] [drm] nouveau 0000:01:00.0: PFIFO_DMA_PUSHER - Ch 0 Get 0x10000000 Put 0x000103cc State 0xc0000000 (err: MEM_FAULT) Push 0x00000000 | [ 14.260058] [drm] nouveau 0000:01:00.0: GPU lockup - switching to software fbcon By contrast, when I boot the same kernel on bare hardware I don''t get the PFIFO_DMA_PUSHER or GPU lockup messages and X works fine. Hypervisor is xen-hypervisor-4.1-i386 from Debian, version 4.1.2-2. Reproducible with linux-image-3.2.0-1-686-pae version 3.2.4-1 and with linus''s master (8597559a78e1, 2012-02-06) and linux-next (e9e792b45a9b, 2012-02-06). dmesg from running the native kernel (good) and dom0 (bad) attached. I also tried blacklisting the nouveau kernel module and starting X with the vesa driver. That also didn''t work. Is this behavior expected? Does starting X in the dom0 work on other cards? Curious, Jonathan _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users