Re: DVI/HDMI displays no picture


"Tom Scales" <tjscales@xxxxxxxxx> wrote in message
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"jolt" <ergoacess@xxxxxxxxx> wrote in message
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"PerL" <PerL@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
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Really disappointing; after running my new 42inch plasma a couple of
days on
S-video fed from from MCE and nVidia Geforce 5200 without problems, I
bought
a HDMI cable (10 m) and a DVI/HDMI adapter and attached to the DVI
output on
the graphics card. I have now spent nearly 3 hours trying to get a
picture on
the plasma, but it is impossible. I cannot understand what I have done
wrong.
I think I have tried all kind of setup now...

The nVidia driver detects the TV as a "LG TV" so the cable should work
alright. Using "720p" in the "TV wizard" gives me 1280x768 and 60Hz
which
should be find according to TV manual. (Native resolution is 1024x768
but it
does not work anyway.) I can not even make work using the "Single
display"
option pointing to the TV. It still says "No signal".

I have also run the TV monitor settings in MCE to tell I have a flat tv
using HDMI. But, on that screen is says the setting is for the "primary
display" and my primary display according to nVidia is the ordinary
small PC
monitor I use for "housekeeping". (The MCE box and the TV are in
separate
rooms).

And I even missed the final of the football world cup...!!!

Is there anyone that has any clue about this I would be very very
grateful.




Open display properties/advanced/adaptor then list all modes. If the list
of display modes do not list the modes you need and or some are listed
incorrectly you have a problem with the monitors EDID.
Hook up a monitor that can display at least 1280X720, in setup make the
monitor the primary display and set to clone the display, your monitor
should work now,you may need to reboot before the monitor becomes active.
NVIDIA cards will not work with the DVI information (EDID) received from
some monitors and there is little you can do as side from leaving another
monitor or a vga dummy hooked up to clone for some resolutions to work, I
have a set that works with ATI nothing extra required, but will not work
with any NVIDIA card that I've tried with recent drivers unless I clone a
monitor to get any resolution over 800X600.

Also 1024X768 the native resolution should give you the best results
because it would map the pixels 1to1 and give you a very nice desktop to
work with, as the fonts should be more visible.


It works fine with my nVidia card. You just have to tweak advanced
settings.


With DVI the monitor only works with timings the EDID has programmed, and it
could well be a bad setting is his problem, on the other hand if the list of
modes is not correct it will stops logical resolutions from being loaded.
I've have a LCD monitor that has a good chip and EDID programming and it
works at any display setting listed, the one with a poor chip or programming
has modes listed that don't exist. My LCD with proper EDID has worked with
ever card I've ever hooked it up to first time ever time at 1280X720 60 or
any display setting listed.

It's not a NVIDIA problem, NVIDIA is just stricter about using the display
modes as sent over the DVI connection, with some monitor it just not relayed
properly. There is a program that reads the EDID
http://www.entechtaiwan.com/util/moninfo.shtm and to my surprise the
software reads the programming on the monitor that does not work properly
and all appears fine but the listed modes are very strange.

With some monitors tweaking won't help. Other manufacturers may get around
this by allowing for logical display setting to be used without strict
regard to the EDID info.


.

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