Hello,

I have a Dell XPS 15 9560 with a GTX 1050 Mobile (GP107M) and an Intel Kabylake
CPU.  Using Kernel 4.11.3 on the Arch installer image, whenever I run 'lspci',
it blocks indefinitely and never prints any output.

After running lspci, dmesg contains:

[   54.819264] nouveau 0000:01:00.0: Refused to change power state, currently
in D3
[   54.879968] nouveau 0000:01:00.0: Refused to change power state, currently
in D3
[   54.879973] nouveau 0000:01:00.0: Refused to change power state, currently
in D3
[   54.879974] nouveau 0000:01:00.0: DRM: resuming object tree...

Eventually the scheduler gets cranky about the hung process and starts spewing
[  245.385522] INFO: task lspci:576 blocked for more than 120 seconds.
and a backtrace every 2 minutes.

Blacklisting nouveau makes lspci work.