Plz assist how to set a screen resolution of 107 dpi!

Beginner

Sunday, April 22nd 2007, 2:28pm

In:
System Settings / Appearance / Fonts
one can set the "Force Fonts DPI -- but only toggle between 2 values: 96 or 120.

Now my 14.1" TFT screen resolution is a calculated 107.1!
This is quite odd between these 2 values

Any suggestions how I can add this value to this menue?

Thanks!

Acer Travelmate 2483NWXMI
Celeron M 430
512MB 80GB DVD+-RW 14,1" WXGA

Ubuntu 7.04 „Feisty Fawn“
Mac OS 6.04 - 10.4.9

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kriko

Trainee

Posts: 127

Location: Slovenia

2

Sunday, April 22nd 2007, 4:16pm

It would be better if you set dpi globally, so in xorg.conf

Option "DPI" "string"

E.g:
Option "DPI" "75 x 85"

You can verify with:

	Source code
1	#xdpyinfo \| grep -B1 dot

which should generate output like this:

dimensions: 1280x1024 pixels (382x302 millimeters)
resolution: 85x86 dots per inch

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Mr. P.

Beginner

Posts: 4

3

Sunday, April 22nd 2007, 5:05pm

Sorry, I am new with KDE -- plz assist!

Thanks for the advice!

	Source code
1 2 3	$ xdpyinfo \| grep -B1 dot dimensions: 1280x800 pixels (301x192 millimeters) resolution: 108x106 dots per inch

I am able to open xorg.conf in Kate right from the GUI

cool

maybe I'll switch from Mac OS X

Now xorg.conf doesn't contain this line -- so wheredo I put it?

	Source code
1	Option "DPI" "108 x 106"

most probably:

	Source code
1 2 3 4	Section "Screen" Identifier "Default Screen" Device "Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller" Monitor "Generic Monitor"

HERE?

Source code

	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1280x800"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x800"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x800"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x800"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x800"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x800"
	EndSubSection
EndSection

Acer Travelmate 2483NWXMI
Celeron M 430
512MB 80GB DVD+-RW 14,1" WXGA

Ubuntu 7.04 „Feisty Fawn“
Mac OS 6.04 - 10.4.9

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kriko

Trainee

Posts: 127

Location: Slovenia

4

Sunday, April 22nd 2007, 5:36pm

Try putting it to section screen (at beggining):

	Source code
1 2	Section "Screen" Option "DPI" "108 x 106"

Note: I took this line from nvidia readme, but I think it is not driver-related thing.
You also need to be root to modify this file (read-only if you are normal user):

	Source code
1 2	#sux #kwrite /etc/X11/xorg.conf

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Mr. P.

Beginner

Posts: 4

5

Sunday, April 22nd 2007, 9:31pm

I am not sure...

whether any impact occurs.
I put the line at 3 different places.
It looks like the default 96 DPI was set.

Acer Travelmate 2483NWXMI
Celeron M 430
512MB 80GB DVD+-RW 14,1" WXGA

Ubuntu 7.04 „Feisty Fawn“
Mac OS 6.04 - 10.4.9

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kriko

Trainee

Posts: 127

Location: Slovenia

6

Sunday, April 22nd 2007, 9:47pm

Then try to add this line to section Monitor:

	Source code
1	DisplaySize 417 333

	Source code
1 2	X Y DisplaySize 417 333

Now, calculate your values for x,y:
X = resolutionX/DPI*25.4
Y = resolutionX/DPI*25.4

Example for my screen (1600x1200, 97x91 DPI):
X= 1600/97*25.4
Y= 1200/91*25.4

You migt round down given results, then restart X and verify:

	Source code
1 2	xdpyinfo \| grep resol resolution: 97x91 dots per inch

If dpi is still wrong, but close, try to decrease/increase DisplaySize values till you get it right.

This post has been edited 3 times, last edit by "kriko" (Apr 22nd 2007, 9:48pm)

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Mr. P.

Beginner

Posts: 4

7

Monday, April 23rd 2007, 7:11am

well done!

	Source code
1 2	xdpyinfo \| grep resol resolution: 108x106 dots per inch

GREAT

Thanks!

Acer Travelmate 2483NWXMI
Celeron M 430
512MB 80GB DVD+-RW 14,1" WXGA

Ubuntu 7.04 „Feisty Fawn“
Mac OS 6.04 - 10.4.9

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