Re: Using xandr -- Re: problems with system-config-display and crtl-alt-backspace

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Marko Vojinovic wrote:
> On Monday 11 January 2010 03:51:16 Paul Allen Newell wrote:
>   
>> Marko Vojinovic wrote:
>>     
>>> Post the output of /var/log/Xorg.0.log, so we can see what is the problem
>>> with autodetection of the external display, and your desired
>>> configuration, and then we'll see what is the best way to fix it.
>>>       
>> I captured the output of both /var/log/Xorg.0.log and xrandr when
>> booting up with the KVM pointed to the machine ("*__FOCUS") and pointed
>> to another machine (actually, a turned-off machine) ("*__NO_FOCUS)
>>     
>
> Yes, well, from the logs it is evident that the monitor gets properly detected 
> in both cases (when in focus and when not), but the resolution chosen 
> (automatically) when not in focus is wrong, 800x600. This is probably some 
> artifact of the interaction with KVM. Not sure precisely where is the problem, 
> though.
>
>   
>> I read the xrandr and "think" that what I want to do is (based on the
>> example "Forces to use a 1024x768 mode on an output called VGA ..."):
>>
>> xrandr --output DVI-I-1 --mode 1680x1050
>>     
>
> Yes, that should be it. Try it out and see if it works. You should probably 
> try it both when in focus and when not. It just might happen that the system 
> refuses to give you 1680x1050 when not in focus, so in that case you should 
> manually switch the resolution every time you get focus (with the above 
> command).
>  
>   
>> If presume that this stays with the machine and is not session based
>> (don't know where the info goes, don't know if I care).
>>     
>
> No, AFAIK xrandr is interactive and does not store the settings anywhere. If 
> you want the settings to stick, you can either use xorg.conf, or create a 
> script (with the above command inside) and execute it whenever necessary --- 
> after login, or after getting focus, or whenever the resolution isn't 
> correct...
>  
>   
>> My other question is I noticed that I seem to be hooked up so my single
>> monitor is coming out of DVI-I-1 and not DVD-I-0.
>>     
>
> It appears you have two DVI outputs on your graphics card, but only one is 
> connected to a monitor. I guess that the outputs are equivalent and either can 
> be used, but if you want to test it, just plug in the cable in the other 
> connector. :-) Anyway, I believe this should not matter much.
>
> Best, :-)
> Marko
>
>
>
>   
Marko:

Thanks for the multiple confirms of questions, I'll give it a try now 
that I know what I was going to do isn't horribly wrong.

Paul
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