understanding the "export DISPLAY=:0" command
#3
Further, within a display, the ".X" suffix will specify a specific screen/device.

So, DISPLAY=:0 usually means "The GPUs in the system."

DISPLAY=:0.0 means "The first configured screen/GPU" - I think it's actually screen, but with one screen configured per card, it's the same.

DISPLAY=:0.1 means "The second configured screen/GPU."

That can be used to address specific cards.

However, none of it *should* be relevant to compute. It's because AMD hacked up a truly odd way to address their cards.


Messages In This Thread
RE: understanding the "export DISPLAY=:0" command - by Bitweasil - 01-20-2013, 07:49 AM