[ltp] X61 + L200p wide LCD flicker

[Tino Keitel]

On Tue, Jan 19, 2010 at 03:01:56 +0000, Ondrej Balaz wrote:
> Hi,
> I've recently bought Lenovo L200p wide panel with native resolution
> 1680x1050. I have X61 in X6 ultrabase which is connected using the
> shortest possible VGA cable ~0.5m (with ferite filters and golden
> connectors). Still I'm experiencing heavy flicker on screen when
> computer is under load (compiling, working with matlab etc.).
> 
> Both monitor and ultrabase are connected to separate outlets through
> noise filter sockets. I think it's not ground loop problem.
> Flicker occurs in Windows and Linux too.
> 
> Any hints? It's normal?

Not normal, but VGA connections to LCD with higher reslutions are prone
to problems like missing sharpness or flicker. The real solution would
be to avoid the superflous D/A and A/D conversion and use DVI or
Displayport. However, this is not an option for a X61 AFAIK.

Regards,
Tino