Graphics and mouse pointer LAG still unresolved!

[Wim]

Originally Posted by Pazuzu

My video:
https://www.youtube.com/watch?v=bQNno57eYYg

First shows that it works fine on laptop screen and mirrored and extended modes.
Then shows how it works fine with only secondary screen running but only when laptop is still open.
Then shows how the error behaves. Everything lags heavily. Windows, menus, mouse pointer, video. The computer becomes useless and no work can be done. But strangely enough some graphics is not affected by any lag...

Thanks for the video. This is interesting and the fact that it only occurs when you close the laptop lid leads me to believe it is not directly related to our driver software.

It looks like when the lid is closed, the laptop is downclocking the CPU, or changing something system to save battery power. The performance you are seeing looks like the performance I would expect on a really low end PC system.

Are there any power settings on the laptop that changes the behaviour when the lid closes?

Wim