HDMI video problems Mavericks Clevo/Sager

[mendozal]

My configuration

Clevo P170HM Laptop, i7 Sandy Bridge
GTX-680M 4Gb
No intel graphics enabled (bios is locked)
Mavericks 10.9

The laptop has 1 HDMI output and 1 DVI output.

1. The laptop freezes when booting and if HDMI or DVI is connected. I had to start the system without any video output connected.
2. Once booted correctly, if I connect HDMI output, the system freezes.
2. If I connect DVI to VGA cable and I get video output, but with some resolution problems.
3. If I connect DVI to VGA cable and after that I connect HDMI cable, I can get video from HDMI and it works correctly.

Is there any advice you can give me?
The system works with no DSDT patch.

I'm attaching iojones and DSDT output from MaciASL

Thanks.

View attachment dsdt.amlView attachment macbook.iojones

 

[mendozal]

anyone?