Re: Acer AL2216W under Linux ?

John-Paul Stewart <jpstewart@xxxxxxxxxxxxxxxx> writes:
Nanar Duff > wrote:
John-Paul Stewart wrote:
The problem lies not with the screen, but with the graphics card. You
need to ensure that your graphics card can support the native resolution
of the LCD.


Huh, ok, thanks for the information, but do you know how could i know
whether my graphic card support the native resolution of the LCD please
(i have a NVIDIA Geforce 4MX AGP8X 128Mb and i use proprietary driver) ?

Graphics card manufacturers usually publish a chart of supported
resolution and refresh rates.

Which does not mean much for use with X. Nowadays, X talks to the
monitor via DDC, and the monitor tells it in an EDID record what modes
it supports; X then matches that with the other stuff it knows (e.g.,
the stuff specified in the xorg.conf file) and selects a proper mode.
And even if that (and all else) fails, you can still make X create any
mode by specifying that mode in the xorg.conf file. The only limit
here is whether the graphics card supports a high-enough dot clock.
Ah, I see <http://en.wikipedia.org/wiki/EDID> that some wide screen
resolutions cannot be expressed with EDID, but 1680x1050 should be as
far as I can see.

I would expect the Gforce 4MX to support a high-enough dot clock for
1680x1050@60Hz easily on the VGA connector. The DVI connector (if the
card has one at all) might be a problem for cards of this generation
(e.g. a Matrox G450 is limited to 1280x1024 on DVI with standard
modes).

Using analog transmission (VGA) you may get flickering or other
annoying issues, so if analog is not good enough and the Gforce 4MX
DVI does exist or does not cut it, replace it with a card with decent
DVI output (I have good experiences with Radeon 7000 cards on
1600x1200 displays).

- anton
--
M. Anton Ertl Some things have to be seen to be believed
anton@xxxxxxxxxxxxxxxxxxxxxxxxxx Most things have to be believed to be seen
http://www.complang.tuwien.ac.at/anton/home.html
.

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