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

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Mr. P.

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Posts: 4

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1

Sunday, April 22nd 2007, 2:28pm

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

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

kriko

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Posts: 127

Location: Slovenia

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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:

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#xdpyinfo | grep -B1 dot



which should generate output like this:


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

Mr. P.

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Posts: 4

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3

Sunday, April 22nd 2007, 5:05pm

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

Thanks for the advice!

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$ 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 :D cool
;) maybe I'll switch from Mac OS X

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

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Option "DPI" "108 x 106"


most probably:

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Section "Screen"
	Identifier	"Default Screen"
	Device		"Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller"
	Monitor		"Generic Monitor"

HERE?

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	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

kriko

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Posts: 127

Location: Slovenia

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4

Sunday, April 22nd 2007, 5:36pm

Try putting it to section screen (at beggining):

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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):

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#sux
#kwrite /etc/X11/xorg.conf

Mr. P.

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Posts: 4

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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

kriko

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Posts: 127

Location: Slovenia

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6

Sunday, April 22nd 2007, 9:47pm

Then try to add this line to section Monitor:

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    DisplaySize     417    333



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                          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:

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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)

Mr. P.

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7

Monday, April 23rd 2007, 7:11am

well done!

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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