xrandr is wrong?? physical display size wrong too..

ferrazrafael · 02-26-07, 08:53 AM

In nvidia-setings i put 85hz in the refresh rate... but in xrandr show 103hz... who is right? nvidia-setings is overwriting xrandr or something? and the physical size of the screen is wrong in nvidia-setings and in xrandr.. how i change it?

**AaronP** · 02-26-07, 11:05 AM

http://us.download.nvidia.com/XFree8...hapter-04.html
See the last question.

ferrazrafael · 02-26-07, 11:36 AM

ok.. but how i change the physical size of the display..?

**AaronP** · 02-26-07, 12:25 PM

By "the physical size of the screen is wrong," you could mean two things:

The physical size is detected incorrectly: You can override this with the DisplaySize option in the Monitor section of xorg.conf.
The physical size is different for each RandR mode: This is intended behavior to keep the DPI constant at the different modes. See the ConstantDPI option in http://us.download.nvidia.com/XFree8...ppendix-d.html

Hope that helps!
-- Aaron

ferrazrafael · 02-26-07, 01:25 PM

is good for what keep the DPI constant?

**AaronP** · 02-26-07, 10:42 PM

If the DPI is not kept constant, then applications that read the DPI (such as any GTK+ application) will display text in a different (pixel) size depending on which mode the screen was in when the app was started. Users were confused by this behavior, hence the default that attempts to keep the pixels sizes the same.

02-26-07, 08:53 AM	#1
ferrazrafael Registered User Join Date: Dec 2006 Posts: 21	xrandr is wrong?? physical display size wrong too.. In nvidia-setings i put 85hz in the refresh rate... but in xrandr show 103hz... who is right? nvidia-setings is overwriting xrandr or something? and the physical size of the screen is wrong in nvidia-setings and in xrandr.. how i change it?

02-26-07, 11:05 AM	#2
AaronP NVIDIA Corporation Join Date: Mar 2005 Posts: 2,487	Re: xrandr is wrong?? physical display size wrong too.. http://us.download.nvidia.com/XFree8...hapter-04.html See the last question.

02-26-07, 11:36 AM	#3
ferrazrafael Registered User Join Date: Dec 2006 Posts: 21	Re: xrandr is wrong?? physical display size wrong too.. ok.. but how i change the physical size of the display..?

02-26-07, 12:25 PM	#4
AaronP NVIDIA Corporation Join Date: Mar 2005 Posts: 2,487	Re: xrandr is wrong?? physical display size wrong too.. By "the physical size of the screen is wrong," you could mean two things: The physical size is detected incorrectly: You can override this with the DisplaySize option in the Monitor section of xorg.conf. The physical size is different for each RandR mode: This is intended behavior to keep the DPI constant at the different modes. See the ConstantDPI option in http://us.download.nvidia.com/XFree8...ppendix-d.html Hope that helps! -- Aaron

02-26-07, 01:25 PM	#5
ferrazrafael Registered User Join Date: Dec 2006 Posts: 21	Re: xrandr is wrong?? physical display size wrong too.. is good for what keep the DPI constant?

02-26-07, 10:42 PM	#6
AaronP NVIDIA Corporation Join Date: Mar 2005 Posts: 2,487	Re: xrandr is wrong?? physical display size wrong too.. If the DPI is not kept constant, then applications that read the DPI (such as any GTK+ application) will display text in a different (pixel) size depending on which mode the screen was in when the app was started. Users were confused by this behavior, hence the default that attempts to keep the pixels sizes the same.

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