On Thu, May 10, 2012 at 12:03:27AM -0300, Paulo Zanoni wrote: > 2012/5/9 Eugeni Dodonov <eugeni.dodonov at linux.intel.com>: > > > > Without this, I am getting a nice black screen though . But the latest > > theory is that perhaps we just need to send any infoframe for the hardware > > to catch up and work in HDMI mode? > > > I finally tested this :) I don't think anymore this is the case since > the ddi_func_ctl register seems correct. > > Lots of theories: > > - Without this patch, you just run cpt_write_infoframe, which can be > messing with a lot of registers that are not DIP registers on HSW > - With the patch, you set the control register to 0 at the HDMI init > time, which disables any DIP that might be sending bad data and > causing the black screen > - On my machine, with this patch, after booting and doing everything, > the dip control register is 0x00110000, which is totally not what we > set/want :) Ok, can I have a minimal hsw_write_infoframe with a big yelling FIXME which just set the hw state such that basic hdmi works? -Daniel -- Daniel Vetter Mail: daniel at ffwll.ch Mobile: +41 (0)79 365 57 48
