Brightness flickering: HDMI <- Displayport Nvidia

English Hardware
1

Connecting my Laptop’s Displayport to the HDMI of my TV works fine under Windows Vista in 1080p (1920x1050).

**Under Linux the Brightness alternates between high and low every other second.
**
Otherwise, the picture is fine and sharp. However, the ever alternating brightness makes it unusable.

Anyone any idea what is the reason for this is and how to fix it?

Software: openSuse11.2 (64bit), nvidia 190.53, X.org 11.0.
Hardware: Dell m4400, nvidia Quadro FX770M, Sony KDL-37W5810.

2

No one any idea what to do?

3

What is the refresh rate set to in lunux and Vista?

It sounds like the it is set too low for linux. When using digital ports such as HDMI, you want a minimum of 75Hz.