Re: New monitor not able to..

Noel8 wrote:
On Dec 12, 4:01 pm, Winniethep...@xxxxxxxxxxxxxxxx (GMAN) wrote:
In article <ie3b07$44...@xxxxxxxxxxxxxxxxxxxxxxxxxx>, Paul <nos...@xxxxxxxxxx> wrote:
Noel8 wrote:
On Dec 12, 12:50 pm, Winniethep...@xxxxxxxxxxxxxxxx (GMAN) wrote:
In article
<0d76d826-a118-4010-9cd9-84a3760bc...@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, Noel8
<harri85...@xxxxxxx> wrote:
On Dec 10, 5:36=A0pm, Martin Heffels <goof...@xxxxxxxxxxx> wrote:
On Thu, 9 Dec 2010 06:25:46 -0800 (PST), Noel8 <harri85...@xxxxxxx> wrote=
:
I bought this 22'' hdtv monitor that also has a pc input ( vga ). I
mainly bought it for my kitchen and its hdtv. The hd is fantastic =A0no
complaints. I was trying to see how the pc input worked with my
laptop, via the vga connection, in the event that my main pc monitor
goes on the blink and use this as a backup. With the input i chose the
PC button and all i get is a blank screen and a small message saying
unsupported. I called the tv's tech and he made me change the
resolution on my laptop to its minimum 800 x 600 and no luck. The max
does not work either. He said it was a new set and had to do some
research and get back to me...has anyone had a similar problem and
found a way around this?
Having read all the other responses you received, did you check the refre=
sh
rate of the second output? Maybe that's set too high? The message
"unsupported" seems to suggest this.
cheers
-martin-
Yes, the refresh rate is 60 for both of them. Its a COBY HDTV/PC
monitor, and enjoying the great pics of HD. FWIW, the model is
LEDTV2235 with 1920 x 1080 Resolution. I do have a desktop and will
try try that
the first chance I get to see if it is the monitor or cable. Thanks to
all.
Actually the PC specs from what i make out on this model are
21.5 TFT LED @ 1366 x 768
http://www.cobyusa.com/files/specsheets/LEDTV2235_SP.pdf
So see if you laptop, under display properties has a 1360X768 setting. My
desktop PC has this settting on its ATI 3870 Video cards drivers.
If it does, try that setting and see if the monitor works!!!
You see , even though it can receive the 1080i and 1080p signals, it
downsamples them to 720P resolution.
Yes, the monitor is working now, but still not able to view my pc on
it. Correct me if I am doing something wrong. I disconnected the vga
cable from my desktop and replaced it with the monitor's vga cable,
booted up my desktop and all i get at the pc input screen is a smaller
square shape with a lot of snow. no pc picture at all. As for the
resolution...what does 720P or any hd resolution have to do with a pc
input? My laptop does not show 1360X768, but my desktop does, and
still no pc connection.
That's a good catch on GMAN's part. I missed the native resolution spec.
Some PC inputs on LCD TVs, *don't* support native resolution. As
wacky as that sounds, that's how some of the older designs
worked. And I can't think of a single good reason for it.
What that would mean in practice, is a 1366x768 panel would support
1280x1024 max. But only the older LCD TVs do that.
More recent products (products with downloadable manuals
and full specification sheets), show that native resolution is
now supported.
Also, monitors now have better provisions for dealing with their
PC input. At one time, the LCDTV input would demand 1366x768 for
the 1366x768 panel. That value was next to impossible to set up,
so users were robbed of the best resolution value. In some cases,
there would be a "tear" in the image on the screen, caused
by aliasing.
Now, the LCD TV may support 1360x768, and place thin black bars
to make up the difference. And while still painful to set up,
at least that resolution value can be generated by a lot of
video cards. (Horizontal divisible by 8, vertical divisible by 2.)
I suggested in my first answer, that you use moninfo, to read
out the monitor EDID. Plug in the LCD TV and give it a try.
Even if the LCD TV won't display an image, the computer
should be able to read the EDID chip, over the monitor cable.
You may see the actual set of supported resolution settings
in the returned information. And then, you'll be able to
discuss with GMAN, whether the PC input supports HD resolutions
or not.
http://www.entechtaiwan.com/util/moninfo.shtm
Paul
Paul, thats one handy little app. Thanks for sharing it with us!!!

I suggested in my first answer, that you use moninfo, to read
out the monitor EDID. Plug in the LCD TV and give it a try. >>>>

I'm sorry..you guys lost me not as computer literate as you both
seem to be and i do appreciate this dialogue...were having.. tell me
how can i view this monitor file if I cannot view on the monitor that
i am trying to hook up? So how can it tell me the resolution? AM I
reading your posts wrong? Right now I am trying to hook it up with my
Desktop that does have 1360X768 and my new monitor is capable of
1920X? Max. BTW, if it makes any difference you guys keep referring my
monitor as LCD, it is LED, it that makes a difference?

OK, say you have a computer with two displays. One monitor works,
the other does not.

--------- (working display)
/
Computer
\
--------- (the display that is black and not working)

So what you do, is leave the non-working display connected. Power
it up (as not all displays will draw power from the VGA cable, when
you want to read the EDID).

Now, run Moninfo on the Computer. Even though the second display is
blank, the computer can still read the EDID. The EDID information
will be visible on the working display, when Moninfo completes
its work.

The display cable, has two information paths on it. In
simplified terms, it's sorta like this. Even though the monitor
on the right of the diagram, isn't using the video signals,
it is still possible for a portion of the monitor circuitry
(the EDID chip) to be working. That is what you're about to
test - is whether there is any signal coming from the EDID.
That Moninfo program will tell you.

------- Video signals -------------> Monitor
<------------ EDID -----------------

See if the EDID table lists any resolution values
you can test with.

Paul
.

Relevant Pages

  • Re: Connecting VAIO notebook to LCD TV
    ... I am trying to conenct my VAIO PCG-GRV680 notebook to Phillips 23PF5320 ... 23 " LCD tv. ... I have some problem with resolution. ... Select the 'Extend Windows desktop onto this monitor'. ...
    (comp.sys.laptops)
  • Re: Office 3007
    ... your monitor (for monitors that support more than one screen resolution ... A LCD display will not support more than one screen ... What I acutually said was "Of course, this is a bad suggestion for someone ...
    (microsoft.public.office.misc)
  • down the LCD panel rabbit hole
    ... I've just purchased an LCD panel, Dell S2209W, and am trying to get the resolution sorted out. ... I changed this to "Generic LCD 1920x1080", logged out and back in as advised, and the display was now very blurry as well as stretched horizontally. ... System/Preferences/Display showed "Monitor Unknown". ...
    (Fedora)
  • Re: 2405FPW 24-inch Wide Aspect Flat Panel LCD - Text Legibility for Person in 50s - Ad
    ... At first I couldn't see any point in buying an LCD of the same size. ... Then I learned about the native resolution for different sizes of LCD ... screens. ... Jump ahead to 2 month ago, I decided it was time to upgrade the monitor ...
    (alt.sys.pc-clone.dell)
  • Re: New monitor not able to..
    ... monitor, and enjoying the great pics of HD. ... LEDTV2235 with 1920 x 1080 Resolution. ... Some PC inputs on LCD TVs, ... should be able to read the EDID chip, ...
    (rec.video.desktop)