On Thu, 30 Apr 2009 21:08:26 +0100
scott <sc...@waye.co.uk> wrote:

> How did you get the smooth scrolling, mine is jerky?  I have on board
> nvidia HDMI connected to a plasma.  I have a 50 Hz setting in xorg.conf and
> the Xorg.0.log and nvidia-settings both report a 50hz rate, the TV however
> reports 60 Hz so may be down to a duff TV (Samsung).

No, it's a "useful feature" in the NVidia driver because NVidia's scaler
does a better looking job than the one built into a typical LCD monitor.
Add this to your "Device" section in xorg.conf:

  Option "FlatPanelProperties" "Scaling = Native"

If you use xrandr to view/choose refresh rates, add this too:

  Option "DynamicTwinView" "false"

There are more details in the driver's README. I think the nv driver has
an option corresponding to the scaling one, but probably not the
TwinView one.

TH * http://www.realh.co.uk

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