Monitor Resolution

Jonas Norlander jonorland at gmail.com
Wed Apr 1 13:46:00 UTC 2009


On Wed, Apr 1, 2009 at 2:56 PM, Brian Blater <brb.lists at gmail.com> wrote:
> On Tue, Mar 31, 2009 at 8:19 PM, Jonas Norlander <jonorland at gmail.com> wrote:
>> On Wed, Apr 1, 2009 at 1:55 AM, Brian Blater <brb.lists at gmail.com> wrote:
>>> Section "Screen"
>>>    Identifier     "Screen0"
>>>    Device         "Device0"
>>>    Monitor        "AcerX223W"
>>>    DefaultDepth    24
>>>    Option         "TwinView" "0"
>>>    Option         "TwinViewXineramaInfoOrder" "CRT-0"
>>
>> This must be an error. I guess that your monitor is not an CRT
>> monitor? So for you it would be DFP-0 instead of CRT-0.
>> Also check /var/log/Xorg.0.log for errors.
>>
>> / Jonas
>>
> Yes, I forgot to look at the Xorg.0.log. I'll do that tonight when I
> get home. Also, this is a flat panel monitor not a bulky CRT. The
> nvidia-settings program is what added the CRT-0 stuff. What exactly
> does that do? Can I just change it to DFP-0?
>

Nvidia is naming the first monitor to CRT-0, second to CRT-1 if it is
a CRT and so on and the first Digital flat panel to DFP-0, second to
DFP-1. It's a way so you can reference one monitor in the settings and
in your case with "Option "TwinViewXineramaInfoOrder" "CRT-0"" it says
that CRT-0 is the main/default/first monitor. I have two monitors and
this in the Screen section "TwinViewXineramaInfoOrder" "DFP-0, CRT-1".

Is your monitor connected to your graphics card with an "DVI
converter"? Perhaps thats why nvidia-settings added CRT-0 and it could
be related to why you don't get full resolution.
What resolution do you see in nvidia-settings and can you change to
them? No need to run it as root. Run it as a user and look at what it
change and add them by hand to your xorg.conf, safer that way and you
learn more but thats just my opinion.

/ Jonas




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