Drivers for LCD Wide Screen

Do you have a question? Post it now! No Registration Necessary.  Now with pictures!

Threaded View
I bought an ACER AL2223WD LCD monitor about a month ago.
The screen measures 18.5"W X 12"H.  Thus its so-called 'aspect ratio'
is 1.54:1,  I'm thinking.  Someone told me it really is 1.6:1.
My system has a RADEON 9250 AGP Video Card.
I have downloaded current drivers.
I am using WXP PRO SP2.
I received no software, drivers, manual with the monitor, which is
unacceptable of course.
I researched for any of the prior, and came up with
just a pdf manual, which I downloaded.  I can find no drivers, or
other softwares whatsoever.
When I called ACER, the ACER rep could find nothing more than I did,
and he queried his 'boss', who e-mailed me:
A driver is not available for this monitor yet.  However, all Acer
monitors will still work as normal Plug&Play displays.  Always refer
customers to for any drivers required.
The manual shows resolutions of 1600X1200 and a 'max resolution' of
1680X1050.  A news group source stated that 1680X1050 is this
monitor's 'native resolution'.
The native resolution of a LCD, LCoS or other flat panel display
refers to its single fixed resolution. As an LCD display consists of a
fixed raster, it cannot change resolution to match the signal being
displayed as a CRT monitor can, meaning that optimal display quality
can be reached only when the signal input matches the native
resolution. An image where the number of pixels is same as in the
image source and where the pixels are perfectly aligned to the pixels
in the source is said to be pixel perfect.

While CRT monitors can usually display images at various resolutions,
a LCD monitor has to rely on interpolation (scaling of the image),
which causes a loss of image quality. A LCD has to scale up a smaller
image to fit into the area of the native resolution. This is the same
principle as taking a smaller image in an image editing program and
enlarging it; the smaller image loses its sharpness when it is
expanded. This is especially problematic as most resolutions are in a
4:3 aspect ratio (640480, 800600, 1024768, 1280960, 16001200) but
there are odd resolutions that are not, notably 12801024. If a user
were to map 1024768 to a 12801024 screen there would be distortion
as well as some image errors, as there is not a one-to-one mapping
with regards to pixels. This results in noticeable quality loss and
the image is much less sharp.

Some resolutions work well, however, if they are exact multiples of
smaller image sizes. For example, a 16001200 LCD will display an
800600 image well, as each of the pixels in the image will be
represented by a block of four on the larger display, without
interpolation. Since 800600 is an integer factor of 16001200,
scaling will not adversely affect the image.

Because of native resolution, some people who play computer games
refuse to use LCD monitors, since the native resolution is so high
that it may cause frame rate issues when playing a game. However,
standard resolutions that make up a perfect fraction of the native
resolution can look better (e.g. 4 native pixels per pixel of small

Most LCD monitors are able to inform the PC of their native resolution
using Extended display identification data (EDID). Some liquid crystal
display televisions however, especially with 1366 x 768 pixels, fail
to provide their native resolution and only provide a set of lower
resolutions, resulting in a less than picture perfect output.
Clearly I should use 1680X1050, and would get best screen-imagery
I find I can select the 1600X1200, but not the 1680X1050.
I tried the 1600X1200, and found too much distortion - that is, if I
scan a hand-drawn circle, it displays as a vertical ellipse.
I am able to choose from several resolutions in Control
There is only one resolution choice available to me that manifests a
1.6:1 ratio - 1280X768 (1.67:1), which I am using, and there is no
distortion that I can see.
Should I try to find a video care that will produce 1680X1050? <<
If so, how can I determine if a given card will in fact give that
resolution?  I googled a few cards, and I could find none that
provided a complete list of resolutions provided.
This is mind boggling to me at this point, and I would appreciate any
informative responses.
If my post is unreasonable, please ignore it.  I am just trying to
find some answers.  Clearly, ACER is not going to help me.
Hopefully my post is technically correct.

Re: Drivers for LCD Wide Screen

On Thu, 11 Jan 2007 13:02:30 GMT, Jethro

Quoted text here. Click to load it

Forget inch measurements, it has a native resolution and
that can be used to calculate the ratio.  1680x1050

Quoted text here. Click to load it

Granted in an ideal world they'd be in the box but aren't
really needed.  Check Acer's website if you really want one,
but all you need do if you want analog connection instead of
DVI is to set the native resolution and 60Hz refresh, adding
whatever others you'd like to have.  

Quoted text here. Click to load it

... there you have it.

Quoted text here. Click to load it

This is a fault with your video card driver, not the
monitor.  They (ATI) could've made it easier.

Quoted text here. Click to load it

try this

Site Timeline