Duff Laptop Graphics?

[Daz]

Fire up the laptop this morning, see the BIOS post, see my OS start (default Ubuntu), hear startup sounds but screen is blank at logon screen.

I'm using Jaunty, so figuring something's just borked in an update, I jump to a terminal, change to the open source rather than binary driver, restart X and I'm in. Digging through the logs, I find this:

[    3.025604] (II) NVIDIA(GPU-0): No display devices connected; falling back to: CRT-0
[    3.026501] (WW) NVIDIA(GPU-0): Unable to read EDID for display device CRT-0
[    3.027697] (II) NVIDIA(0): NVIDIA GPU GeForce Go 7400 (G72) at PCI:1:0:0 (GPU-0)
[    3.027709] (--) NVIDIA(0): Memory: 524288 kBytes
[    3.027719] (--) NVIDIA(0): VideoBIOS: 05.72.22.21.fe
[    3.027729] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[    3.027753] (--) NVIDIA(0): Interlaced video modes are supported on this GPU
[    3.027765] (--) NVIDIA(0): Connected display device(s) on GeForce Go 7400 at PCI:1:0:0:
[    3.027774] (--) NVIDIA(0):     CRT-0
[    3.027795] (--) NVIDIA(0): CRT-0: 400.0 MHz maximum pixel clock
[    3.038425] (II) NVIDIA(0): Assigned Display Device: CRT-0
[    3.038444] (==) NVIDIA(0): 
[    3.038455] (==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
[    3.038462] (==) NVIDIA(0):     will be used as the requested mode.
[    3.038471] (==) NVIDIA(0): 
[    3.038537] (II) NVIDIA(0): Validated modes:
[    3.038548] (II) NVIDIA(0):     "nvidia-auto-select"
[    3.038562] (II) NVIDIA(0): Virtual screen size determined to be 1024 x 768
[    3.038856] (WW) NVIDIA(0): Unable to get display device CRT-0's EDID; cannot compute DPI
[    3.038866] (WW) NVIDIA(0):     from CRT-0's EDID.
[    3.038876] (==) NVIDIA(0): DPI set to (75, 75); computed from built-in default

I highlight the first line because that's an obvious problem, and the second because that's not my graphics card (it's a Quadro).

I couldn't remember which Quadro I actually had, so thinking the quickest way to find out was to jump into Windows, I reboot and tell it to start Vista.

... same problem. I have a picture when I start up, but when Vista itself starts, no output on the screen.

The conclusion I've come to at the minute is that when loading the binary driver in either OS, the card is damaged or otherwise reporting itself incorrectly, which leaves me without any video.

Luckily I still have 150 odd days worth of warranty left, but I'm open to suggestions for things to try in the mean time to see if I can sort it myself. I have yet to hook it up to an external monitor, that may have to wait until tomorrow now.

Consider the floor open