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Old 08-11-08, 10:56 AM   #1
edyfox
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Join Date: Aug 2008
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Unhappy How to hard-set the DPI value without restarting the X?

How to hard-set the DPI value without restarting the X?

Typically we use "xrandr --dpi value" to hard-set the DPI value during
runtime without restarting the X. However, nVidia drivers seem to
defunctionalized "xrandr" so I can't "xrandr" to do anything I want
(including enabling and disabling the external monitor, etc), every
adjustment has to be done via "nvidia-settings". I just want to find
a way to hard-set the DPI value as I wish.
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Old 08-11-08, 11:16 AM   #2
Tub
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Default Re: How to hard-set the DPI value without restarting the X?

you could add something like this to the device section of your xorg.conf:
Code:
Option      "DPI" "96 x 96"
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Old 08-11-08, 11:27 AM   #3
edyfox
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Default Re: How to hard-set the DPI value without restarting the X?

> you could add something like this to the device section of your
> xorg.conf:
>
> Code:
> ---------
> Option "DPI" "96 x 96"
> ---------

Thanks for your help but no, that's not what I want...

I know the "DPI" section in xorg.conf. I also know that in order to
make "DPI" option effectual, I also have to disable the EDID as well:

Code:
---------
Option "UseEDIDDpi" "FALSE"
Option "DPI" "96"
---------

But my requirement is to hard-set the DPI value during runtime, that
is, without restarting the X server. Modifying xorg.conf requires
restarting the X server, of course.

If I was not using nVidia's drive, I could use "xrandr --dpi 96" to
change the DPI value dynamically. However, nVidia's drive disables
every function of xrandr so after installing the nVidia's drive,
xrandr has no use at all. I just need some corresponding utility
provided by nVidia to change the DPI value.

I noticed that the DPI value changes when I plug an external monitor
to my laptop. So changing the DPI value during runtime is feasible
for nVidia drive. I just want to find an interface to adjust that by
myself.


Regards,


Edward
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