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-   -   Missing scaling options in 302.17 (http://www.nvnews.net/vbulletin/showthread.php?t=184968)

sisu 06-23-12 04:05 PM

[FIXED] Missing scaling options in 302.17
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I have previously used GPU scaling with fixed aspect ratio with nvidia-settings. When I upgraded to 302.17 drivers I can no longer see any options regarding scaling method in nvidia-settings and the screen gets stretched when I use resolution with different aspect ratio than my monitor's native 16/10.

Downgrading to 259.59 makes the aspect-ratio-fixed scaling work again. Is there a way to make it work in 302.17 or is this a bug?

I tried adding the line

Option "FlatPanelProperties" "Scaling=aspect-scaled"
to my xorg.conf but that just produced the warning

Unrecognized FlatPanelProperties property "Scaling"
to Xorg log.

johnc 06-23-12 11:32 PM

Re: Missing scaling options in 302.17
From the release highlights:

- Removed Flat Panel Scaling configurability in nvidia-settings. Any desired scaling can be configured through the new "ViewPortIn" and "ViewPortOut" MetaMode attributes.

- Extended the MetaMode X configuration option syntax with the following new attributes:

"Rotation" : specifies the display device's rotation
"Reflection" : specifies the display device's reflection
"Transform" : specifies a 3x3 transformation matrix to be
applied to the display device
"ViewPortOut" : specifies the region of the mode in which to
display pixels
"ViewPortIn" : specifies the size of the region in the X screen
to display in the ViewPortOut

For example, "DFP-0: nvidia-auto-select { Rotation=left }".
See "Configuring Multiple Display Devices on One X Screen" in the
README for details.

IIRC they intend to bring this functionality back to nvidia-settings for the new "ViewPortIn" and "ViewPortOut" context. In the meantime you have to specify your MetaModes in your xorg.conf file.

sisu 06-24-12 01:51 AM

Re: Missing scaling options in 302.17
Thank you, I got it working!

It worked using metamodes like "DVI-I-2: 1680x1050 { ViewPortIn=800x600, ViewPortOut=1400x1050+280+0 }".

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