24 Jul
2013
24 Jul
'13
12:06 p.m.
On Wed, Jul 24, 2013 at 05:13:42PM +1000, Dave Airlie wrote:
After a full device powerdown via the optimus power switch, we seem to lose the HDMI device completely on power on, this keep track of whether we had a hdmi audio sub function device at power on, and pokes a magic register to make it reappear after the optimus power switch is thrown.
This at least works on my NVC4 machine, probably needs testing on a few other laptops with other nvidia GPUs.
Sorry for a stupid question, but how do you test "optimus power switch" ? (I have a laptop with hybrid Optimus graphics, so I could test..)
Thanks,
-- Pasi