On Mon, Nov 26, 2001 at 01:40:25AM -0500, safemode wrote:
> unless 1280x1024 dimensions gives 87x96 resolution, then it was wrong.  If it 

"How long is a piece of string?"

The resolution depends on the monitor size.  XFree86 put the values it
used to calculate that resolution in the log file
(/var/log/XFree86.0.log), so go take a look and see what it says.  My
17" monitor running at 1152x900 says

(II) MGA(0): Manufacturer: KDS  Model: 1746  Serial#: 16843009
(II) MGA(0): Year: 1999  Week: 48
(II) MGA(0): EDID Version: 1.1
(II) MGA(0): Analog Display Input,  Input Voltage Level: 0.700/0.300 V
(II) MGA(0): Sync:  Separate  Composite
(II) MGA(0): Max H-Image Size [cm]: horiz.: 30  vert.: 23
[snip]
(--) MGA(0): Virtual size is 1152x900 (pitch 1152)
(**) MGA(0): Mode "1152x900": 110.0 MHz, 71.6 kHz, 76.1 Hz
[snip]
(--) MGA(0): Display dimensions: (30, 23) cm
(--) MGA(0): DPI set to (97, 99)

Do some math, and it's pretty clear what's going on.

(Now, though, I force DPI to 100x100 for convenience reasons.)

I think Mark's idea of snapping to 75 or 100 DPI is a good one, but I'd
say that this should only be done if the delta is less than... 15%
maybe.  Perhaps there should be standard values at 125 and 150 as well,
since some systems are starting to come with higher-resolution LCDs.  I
think even the Apple iBook has a fairly high-res display?

Then, there's also the IBM 200-dpi monstrosity.

-andy
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