[gentoo-user] DPI is giving me a headache!

2008-03-02 Thread Mick
Hi All,

I changed the monitor on a box that runs kdm/KDE and the fonts on KDE apps are 
giving me a headache from eye strain.  This is particularly bad when working 
at a console (white letters on black background) and KDE text editors (with 
black letters on white background).  Essentially, the antiailiasing seems to 
alter the consistency of fonts in an irregular manner causing them to blur 
(differently) across the screen, as if the monitor resolution is out of sync.

The resolution in xorg.conf is set at 360 290 mm, but the DDC picks this up on 
its own anyway, whether I define it in xorg.conf, or not.  I have no modeline 
set.  All I can think that is amiss is the DPI.  I seem to be getting a DPI 
of 90x89:

$ xdpyinfo | grep resolution
  resolution:90x89 dots per inch

Could this be the cause of my headache and how should I fix it?
-- 
Regards,
Mick


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Re: [gentoo-user] DPI is giving me a headache!

2008-03-02 Thread Volker Armin Hemmann
On Sonntag, 2. März 2008, Mick wrote:
 Hi All,

 I changed the monitor on a box that runs kdm/KDE and the fonts on KDE apps
 are giving me a headache from eye strain.  This is particularly bad when
 working at a console (white letters on black background) and KDE text
 editors (with black letters on white background).  Essentially, the
 antiailiasing seems to alter the consistency of fonts in an irregular
 manner causing them to blur (differently) across the screen, as if the
 monitor resolution is out of sync.

 The resolution in xorg.conf is set at 360 290 mm, but the DDC picks this up
 on its own anyway, whether I define it in xorg.conf, or not.  I have no
 modeline set.  All I can think that is amiss is the DPI.  I seem to be
 getting a DPI of 90x89:

 $ xdpyinfo | grep resolution
   resolution:90x89 dots per inch

 Could this be the cause of my headache and how should I fix it?

post your xorg.conf? drivers? increase font size?
--
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Re: [gentoo-user] DPI is giving me a headache!

2008-03-02 Thread Dan Farrell
On Sun, 2 Mar 2008 14:02:40 +0100
Volker Armin Hemmann [EMAIL PROTECTED] wrote:

  Essentially, the
  antiailiasing seems to alter the consistency of fonts in an
  irregular manner causing them to blur (differently) across the
  screen, as if the monitor resolution is out of sync.
 

hmm, that reminds me of the appearance of the screen when you're
running at a resolution that isn't native for the device.  For example,
if you run a 1280x1024 at widescreen, each 6th pixel or something is
stretched to consist of 2 physical pixels to widen the screen out to
fill the entire display.  I hope that explination makes sense -
clearly there are other, better ways to use widescreen in a case like
this.  

i would make sure you're running in the screen's native resolution if
it's an LCD, else make sure you're running at a resolution that fits
the aspect ratio of your screen.  
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Re: [gentoo-user] DPI is giving me a headache!

2008-03-02 Thread Mick
On Sunday 02 March 2008, Dan Farrell wrote:
 On Sun, 2 Mar 2008 14:02:40 +0100

 Volker Armin Hemmann [EMAIL PROTECTED] wrote:
   Essentially, the
 
   antiailiasing seems to alter the consistency of fonts in an
   irregular manner causing them to blur (differently) across the
   screen, as if the monitor resolution is out of sync.

 hmm, that reminds me of the appearance of the screen when you're
 running at a resolution that isn't native for the device.  For example,
 if you run a 1280x1024 at widescreen, each 6th pixel or something is
 stretched to consist of 2 physical pixels to widen the screen out to
 fill the entire display.  I hope that explination makes sense -
 clearly there are other, better ways to use widescreen in a case like
 this.

 i would make sure you're running in the screen's native resolution if
 it's an LCD, else make sure you're running at a resolution that fits
 the aspect ratio of your screen.

Yep, that's pretty much what I think it is.  Stretches and blurs along the 
width of the screen, every few pixels.  I thought I *was* using the native 
resolution.  Of course DDC may not be picking up the right dimensions in the 
first place.  This is not a wide screen, just a 1280x1024 vanilla resolution.  
The monitor is a NEC MultiSync LCD 1860NX.

Screen 0: minimum 640 x 480, current 1280 x 1024, maximum 1280 x 1024
default connected 1280x1024+0+0 0mm x 0mm
   1280x1024  60.0* 
   1024x768   60.0  
   800x60060.0  
   640x48060.0  
   832x62460.0

This is what the Internet tells me (because the manual is rubbish):

Display Type:  IPS TFT 46 cm (18.1 inch)
Active Display Area:   360 x 290 mm
Pixel Pitch:   0.281 mm
Viewing Angle: 160° horizontal/160° vertical (at contrast 
ratio 10:1)
Brightness:200 cd/m2
Contrast Ratio:350:1
Response Time: 30 ms (white to black 15 ms, black to white 15 
ms)
Number of Colours: 16.77 million
Optimum Resolution:1280 x 1024 at 60 Hz (1.3 mega pixel)
Other Resolutions: 1024 x 768; 832 x 624; 800 x 600; 640 x 400; 
640 x 480; 720 x 400
Features/Adjust Functions: NTAA (Non-Touch-Auto-Adjustment); Auto adjust; 
Contrast; Brightness;
   Fine adjust (analog); OmniColor™: sRGB and 6 
axis colour control;
   Colour temperature control; Monitor info; 
Language Select;
   Intelligent Power Management (VESA/EPA/NUTEK 
compliant);
   On-Screen Manager (OSM) lock out
User Controls: On/Off; OSM menu; Interfaces
Plug  Play; Asset Management: VESA DDC2B; DDC2Bi; DDC/CI and EDID standard
Horizontal Frequency:  31–82 kHz
Vertical Frequency:55–85 Hz
Dot Clock Rate:135 MHz

-- 
Regards,
Mick


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Re: [gentoo-user] DPI is giving me a headache!

2008-03-02 Thread Dan Farrell
On Sun, 2 Mar 2008 18:10:58 +
Mick [EMAIL PROTECTED] wrote:

 Please find xorg.conf and Xorg.0.log attached.  I am using the xorg
 radeon driver.  The font size is just right, would not like to
 increase it.
 

A few thoughts based on your xorg.conf.  

1) you set 
HorizSync  64 #31 - 80 #digital
VertRefresh   60 #55 - 85 #digital

you shouldn't need either.  You might want to remove them and try
without.  


2) your ATI device has quite a lot of settings.  If you don't need them
all, you might want to remove or comment out what you can.  They
might affect the output in unexpected ways, although I'm no ati
expert.  

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Re: [gentoo-user] DPI is giving me a headache!

2008-03-02 Thread Volker Armin Hemmann
On Sonntag, 2. März 2008, Mick wrote:


oh god. I hate this automatically generated xorg.confs. They are filled with 
rubbish. *sigh*

hm, could you try without this?
DisplaySize 360 290 #digital, oh wait, you said that doesn't change 
anything. Hm.

You can set your DPI with the nvidia driver. But I am not convinced that it is 
X, the drivers or the monitors fault. The font antialising in linux is just 
bad ;)

hm, oh, and try whatever Dan told you ;) Maybe enabling backingstore helps 
too.
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