i915kms.ko: when loaded with Haswell HD4600, display goes blank

[O. Hartmann]

Having trouble with loading i915kms.ko on a Haswell-based Lenovo ThinkPad E540. 
The
laptop is equippted with a Intel i5-4200M CPU with integrated HD4600 iGPU. 
Recent update
of CURRENT and loading of i915kms.ko turns the display immediately blank. 
Laptop is
accessible via ssh and network. Only display is dead.

I suppose this a bug?

regards,

oh 

pgp9UYq5E7J9x.pgp
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