Comment 29 for bug 1523800

I'm pretty sure that this is same bug that my machine is suffering. I have Dell Precision 15 5000 Series (5510) with Quadro M1000M/PCIe/SSE2 graphics card (4.2.0-23-generic). Current observations:

- HDMI output works if connected from the boot
- When DPMS kicks in HDMI output disappears (tested with 2 different monitors)
- Hotpluging doesn't work (no kernel events, used udevadm monitor to verify)
- VGA (via usb-c adapter) works, hotplugging also
- display port (via usb-c adapter) not confirmed (going to when I got the adapter)

I think this is rooted to issue that hotplugging HDMI cable doesn't work properly. I can provide more information if required.

How could I debug this nvidia driver even more? I really would like to solve this issue.