Problem with Samsung 191T DVI Connection

[Brian from 11cb.com]

Hi all!
I have a problem with DVI connection on my Computer.
I can use Analog connection without any problem. But DVI connection
never works for me.

Here is what I got.

Intel P4 3.0GHz (HT enabled) w/Vantec VP-C7040
ASUS P4C800-E Deluxe with BIOS Rev.1014 (P4CED14A)
2x Kingston HyperX 512MB DDR PC3200 CAS2 (Dual DDR Mode)
ASUS V9560VS fx5600 128MB with DVI-I and Analog (15PIN) VGA Connection
(ASUS 52.16 Driver and nVidia 52.16 Driver)
Built in Intel 1G NIC, Sound
Sony 16X DVD Rom on Secondary IDE as a Master Drive
Sony 52x CDRW on Primary IDE as a Master Drive
Sony 1.44NB FDD
2x WD 160GB JB (8MB Cache) with Raid 0
Samsung Syncmaster 191T 19" LCD with Dual Input (DVI and Analog) with
the newest driver
Lian Li Aluminum Case with Vantec VAN-400B 400Watt PSU
Intel Chipset Software Installation Utility 5.0.2.1002 Production
Version
Windows XP Pro with SP1a

I've also tried...

MSI Ti4600 128MB
ATI AIW 9700 Pro

My Problem is...

DVI Connection never works for me.
Contacted Samsung Tech Support and I was told it was Defective
Monitor. So I got a replacement from newegg.
Replacement monitor didn't work. Contacted Samsung Tech Support again.
This time, they said it should be the video card.
Tried 3 different video cards with all different drivers. no luck...
Hooked up CRT monitor and connect 191T as a 2nd Monitor, nView cannot
detect lcd monitor.
And monitor goes to stand by mode.
I guess system is not getting any signal from the Samsung 191T LCD.
It works perfectly fine with Analog, but I want DVI connection.
Can anybody tell what the problem is?
Thanks in advance and sorry for my poor English!

itsocool @ hotmail.com

 

[rsb]

Hi!

I'm afraid I've got bad news for you.

Today, my third (third!) Samsung Syncmaster tft191T DVI input stopped
working. The DVI input doesn't work anymore, analog input is OK.
Exactly the same error as my previous two 191T:s. Three defect screens
in 6 months.

This means - this definitively means - that Samsung has a *serious*
intermittent problem with the syncmaster 191 T. I think the problem is
that the DVI input is very very sensitive to current peaks. If Samsung
will ever send you a non-defect screen - always press the screen power
button off, before removing the power cable, otherwise you'll get a
current peak that could spoil your DVI input. (which it *shouldn't* if
the DVI input had a proper transient protection).

I'm returning this excellent picture quality screen with a really
shitty DVI electronics to the store - I want my money back.

 

[creadler]

If its any consolation, I have a similar HP machine with Nvidia Video
card and it worked great for a few months then suddenly died. Analog
works fine.