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ThinkPad W530 discrete graphics?



Dear all,

is there any way to get an external display to work on a ThinkPad W530?  From what I read, both the mini-dp and the vga connector work only with discrete graphics, which I have enabled in the BIOS (optimus/switching mode).  At boot I see these lines:

[     4.991148] nouveau0: NVIDIA GK107 (0e73c0a2)
[     4.991148] nouveau0: autoconfiguration error: error: bios: unable to locate usable image
[     4.991148] nouveau0: autoconfiguration error: error: bios ctor failed, -22
[     4.991148] nouveau0: autoconfiguration error: unable to create nouveau device: 22

Anyone know what the issue is?  With BIOS set to discrete only I see the same lines and then a kernel panic (no console.)

Running xrandr shows VGA1 as disconnected even with a cable plugged in.

So 2 questions: 1) Do I really need to use the discrete graphics or is there some other way? 2) How to get discrete graphics to work.

Any help appreciated :)

- Malte


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