how to apply nvidia settings from the command line?

[Darren Upton]

Karl Auer wrote:
> On Wed, 2009-07-29 at 07:37 +0200, Gérard BIGOT wrote:
>> sudo nvidia-setings
>> from a terminal session. 
>> Then make your changes and press the button that commits it to
>> xorg.conf
>> It'll persist.
> 
> Thanks, but that's not what I need. Please read my question carefully.
> 
> - solution must be from the command line
> - solution must not terminate the existing X session
> 
> Also, nvidia-setting can reset the X server (apparently) when *not*
> root, and that is good. I don't *want* it to persist, necessarily - I
> want to be able to switch from setup to setup from the command line.
> 
> Regards, K.
> 
>> I don't know why it's not by default launched as root.
>>
>> And I know, it's not a direct reply to your question, but I believe it
>> solves the root cause of your trouble.
>>
>> G.
>>
>> 2009/7/28 Karl Auer <kauer at biplane.com.au>
>>         Hullo everyone.
>>         
>>         When I click "apply" in the NVidia configuration program
>>         "nvidia-settings", the screen blanks, and after a second or
>>         two
>>         everything comes back with the new settings applied and all my
>>         windows
>>         intact. Great for switching between twinview mode and normal
>>         mode.
>>         
>>         However, to do this I need to start nvidia-settings, click on
>>         a few
>>         things, click apply, then click "OK" to confirm I want to keep
>>         the
>>         changes, then "Quit" to exit. It's easy to make a mistake (the
>>         GUI has a
>>         few oddities), so I'd like to be able to automate it all.
>>         
>>         nvidia-settings has a command line mode, and I can get
>>         nvidia-settings
>>         to load a configuration OK, but it doesn't then do whatever
>>         the "apply"
>>         button does, and there seems to be no command line option to
>>         tell it to
>>         do so.
>>         
>>         The following answers are NOT correct:
>>         
>>           - use CTL-ALT-Backspace
>>           - install dontzap, then use CTL-ALT-Backspace
>>           - use rightAlt-printscreen-k
>>           - sudo /etc/init.d/gdm restart (and variations like kdm, xdm
>>         etc)
>>           - log out and log back in
>>         
>>         All these cause all session information to be lost.
>>         
>>         I'll keep working on it, but if anyone has any good ideas...
>>         
>>         Regards, K.
>>         
>>         --
>>         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>         Karl Auer (kauer at biplane.com.au)
>>         +61-2-64957160 (h)
>>         http://www.biplane.com.au/~kauer/
>>          +61-428-957160 (mob)
>>         
>>         GPG fingerprint: 07F3 1DF9 9D45 8BCD 7DD5 00CE 4A44 6A03 F43A
>>         7DEF
>>         
>>         
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>>

nvidia-settings can also be run from the command line.  Type 
'nvidia-settings -help' from the prompt for all of its options.