[ltp] W500 display problem at 1680x1050

Alex Deucher linux-thinkpad@linux-thinkpad.org
Thu, 12 Jun 2014 09:31:53 -0400

On Wed, Jun 11, 2014 at 5:37 PM, Petr Voralek <nazir.cz@gmail.com> wrote:
>    Hello!
>   I use a Thinkpad W500 (amd64 Debian GNU/Linux testing (Jessie), BIOS
> 6FET93WW (3.23)) and I would be happy if it stayed for some time (newer
> models have unusable keyboards for me).
>   I recently (after a long time) switched from closed source
> fglrx-legacy to opensource drivers. The need for preservation of the
> older versions of the kernel and xorg was already unbearable for me.
>   There have been a problem at a screen resolution 1680x1050 (a
> 1920x1200 resolution is without any problems, but it's too tiny for me).
>   The picture is doubled and as if a few pixels on mutually shifted.
> I believe that there is a problem in the detection of display frequency.
>   Have you ever met a similar problem?  Do you know how to resolve it?

Can you post a picture of the problem?  The panel only supports that
native timing (1920x1200), so all other modes are just upscaled to the
native timing using the scaler on the GPU.