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Resolved Question

TV scrambled while PC is connected via HDMI

Jul 30, 2011 7:48PM PDT

So the problem is that my LCD TV has a scrambled picture when my
computer is turned on and connected to the TV via HDMI. I got analog
signal TV connection but the picture is fine while the PC is turned off.
Yeah I know I should get digi TV but till then I would like to sort
this out. The TV is a Samsung 40" HDReady LCD model LE40A336. It has 2 HDMI
input ports. Tryed both with same results. BTW if I remember it right, I
had the PC connected via VGA last weekend and didn't have this problem.
Maybe I'm using wrong setting with PC... wrong Hz or sth. Anyhow maybe someone has had similar problems and solved it.
PC:
GTX 470 DVI->HDMI
i5 2500K
Windows 7 x64.
The TV is the only monitor connected to the PC via HDMI. Sound is passing through the HDMI cable aswell.

Discussion is locked

aivar1988 has chosen the best answer to their question. View answer

Best Answer

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IT was the HDMI cable!
Aug 1, 2011 5:42AM PDT

SOLVED: It was the HDMI cable. Just tested with another HDMI 1.3b cable
which is twize as thin and with no cold connectors but it was scramble
free.
The specs of my cable:
Version: 1.3
Cable Length: 2 Meters
Color: Black
Suitable for use in PS3, Xbox 360, HDTV, DVD Players, Blu-ray Players, and much more
Supports 480i, 480p, 720p, 1080i, 1080p resolution
Transfer Digital Audio and Video signals at warp speed of 5 Gigabits per second
Designed to meet all HDMI standards
Gold-plated connectors, molded strain-relief design lessens plug/socket pressure
Gold-plated connectors for highest signal transfer rate and resistance in corrosion
Large gauge PVC jacket provides maximum shielding against wear and tear and extreme temperatures

Whats the difference between 1.3a and 1.3b

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Answer
Re: scrambled picture
Jul 30, 2011 8:07PM PDT

What happens if you hibernate the PC while viewing analog TV? That's kind of half turned off.

Kees

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Hei!
Jul 30, 2011 8:39PM PDT

Picture is fine while hibernating. The second it boots back up it starts to scramble again.

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That's a work-around then ...
Jul 30, 2011 9:18PM PDT

until Samsung solves this. My guess: this will need new firmware.

Kees

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Hei!
Jul 30, 2011 11:55PM PDT
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Answer
Scrambled...
Jul 31, 2011 3:26AM PDT

Have you checked to see if the driver for your video card needs an update? If this is only happening when the PC is connected or awake, that tells me the problem is not the TV, but the signal transmitted by the computer. You also said this only happens when you connect with HDMI. Have you tried a different HDMI cable?

Good Luck!
TQ

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Hei!
Jul 31, 2011 7:07AM PDT

HDMI cable brand new and drivers are up to date from nvidia homepage.
Just checked with a Toshiba SD590 DVD player via HDMI. "The SD-590 has an HDMI connection, it up-scales standard definition DVD
content to 720p, 1080i and 1080p, giving your existing DVD collection a
near high definition appearance."
The picture was still scrambled. PC was unpluged. When I turned the player off the picture was fine again.
Will try another HDMI cable tomorrow hopefully with a laptop.
Even if it doesn't fix the problem I still would like to update the firmware. So could anyone direct me to a "how to"?

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Hei!
Aug 1, 2011 6:46AM PDT

aivar1988,

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Hei!
Aug 2, 2011 5:24AM PDT

Nothing but manuals over there! So there is no firmware update for my TV?