Re: NEC2080UX+ - "Supported Future Video Modes"
On Wed, 2004-06-09 at 10:51, Alvin Oga wrote:
> hi ya zen
>
> experiment time
OKidoki.
> On Wed, 9 Jun 2004, Zenaan Harkness wrote:
>
> > My real question: how do I get 1600x1200 (the native resolution) out of
> > this thing?
>
> start at 102x768
I decided to give 102 a miss and go straight for 1024 :)
> than try 1280x1024
> than try 1600x1200
>
> use only one resolution so you know the screen size is supposed to be
> as you defined
> xdpyinfo | grep dimension
All the following tests are with Xinerama, so xdpyinfo returned twice a
single screens width for each test resp..
640x480 same problem (the problem being, the display (here 640x480)
works fine on the laptops inbuilt display, but this shimmering/ fuzzy
effect happens on the external LCD).
800x600 works for both screens - xdpyinfo returns dimension of 1600x600.
1024x768 same problem (internal works, external not).
1280x1024 works for both screens.
1600x1200 internal works, external not - but not shimmering, but looks
like it's trying to render 1600 pixels at only 1280, and doing a
particularly bad job of antialiasing or something: so it's almost
impossible to read.
Perhaps XF86 is somehow trying to display 1600 at higher-than-60Hz ??
The LCD can only display 1600x1200 at 60Hz according to the manual,
which is also its native and "optimal" resolution.
> > The display is fuzzy - as in actively blurry like a CRT scanning at the
> > wrong frequency or something (it's not just out of focus) - at all but
> > 1024x768 (or something near that).
> >
> > According to the NEC manual, specs are:
> >
> > Section "Monitor"
> > Identifier "NEC"
> > DisplaySize 410 310 # mm
> > HorizSync 31.5-91.1
> > VertRefresh 50-85
> > VendorName "NEC"
> > ModelName "LCD2080UX+"
> > Option "DPMS"
> > EndSection
>
> make sure that stanza corresponds to your XF86Config file
Actually, the manual just had the H/V sync rates, and the
above is straight from my XF86Config-4 - I just checked the
CD-manual though, and the figures are correct.
> - check the dpms too
How do I check this?
I tried commenting out the two DPMS lines (one for each screen) and
running at 1600 (Xinerama) but this had no effect:
produces the same effect - internal LCD works, external is really bad
antialiasing at lower res, so cannot read.
> - i'd comment out DisplaySize and see what happens
I have done so. No effect.
> wrong settings for the lcd probably wont hurt it
If I comment out the above sync/refresh numbers, the same results occur
(works in 800x600, not in others, etc).
> wrong setting for old fashion crt tube might let out the nice blue
> perfume, after which, it wont work anymore
Good to know.
Thanks
Zen
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