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"Not Supported Mode" on Samsung HDMI

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Old 10-04-2007, 04:36 PM   #1
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Default "Not Supported Mode" on Samsung HDMI

I have a problem with a new Samsung LNT3232H TV and my Time Warner Scientific Atlantic HD cable box, namely, that when I link the two via an HDMI cable and set the TV's source to HDMI, I get no piciture nor sound but just a "Not Supported Mode" message. This is in spite of the fact that the cable box supports HDMI and has an output jack and the TV has two HDMI input jacks and is supposed to receive HD signals via the HDMI cable.

I should also explain that this particular HD cable box was working fine with a previous Polaroid HD television (I bought two weeks ago, but returned on Tuesday) and the HDMI cable linked up to the previous set. Because of other problems with the Polaroid TV (all of a sudden, a green blurry snowy picture and audio noise, then no picture or audio at all), I had to return it and decided to get the Samsung instead. Therefore, unless the former tv when it went "on the fritz" somehow damaged the cable box (or the Polaroid's problem was caused by a failure of the cable box), I would conclude that the cable box is certainly capable of and should be delivering a signal via the HDMI cable.

When I hook up the cable box and Samsung TV with component video-audio cable, I do get picture and audio and HD on the HD channels. It's just that I'm supposed to be able to use HDMI with this cable box and TV and would prefer that because of the superiority of HDMI cable to component video-audio cables.

I've been on the phone over the past two days four different times with the Samsung folks (who are claiming that the fault is with the cable box) and four times with the Time Warner folks (who claim that the fault is with the TV). To be fair, I should add that the customer service folks from both Samsung and Time Warner have been very good, helpful, and patient; it's just that neither can solve the problem.

Here are some things I have done: 1. Early on I was able to program the cable remote with the TV's code in order to use my cable remote with the set. 2. Because I was advised by Samsung that the TV does not support 480i, at Samsung's and TW's suggestion, when I went through the cable box's picture format "wizard," (simultaneously engaging the "guide" and "info" buttons on the cable box) I disabled both 480i widescreen and 480i standard format and enabled 1080i, 720p, and 480p widescreen and 480p standard. No luck there -- still the same "Not Supported Mode" when the box and TV are linked with the HDMI cable and my source is set to HDMI. Actually, I tried to enable the 480i also just to see if that would work, but it didn't. 3. I've tried "pass through, fixed, upconvert 1, and upconvert 2" on the cable box -- still, no luck, still get the "Not Supported Mode" message.

I've tried every setting I can think of with both the cable box and the TV, to no avail. As I say, my component video-audio cables do provide me even with HD on the HD channels, but I can't help but believing that I should be able to use the HDMI cable instead and not be having this problem. The customer service technicians at TW and Samsung, although very helpful and patient, are stumped.

Any ideas for a solution? Or is it just possible either that: a. the cable box was damaged by the previous TV when it suddenly got a green, snowfilled screen and then no picture nor sound at all and therefore the box should be swapped out; or b. the Samsung TV has a "quirk" and should be exchanged????

Thanks in advance for your ideas.
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Old 10-04-2007, 05:17 PM   #2
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Some samsungs have had trouble with HDMI because of the HDCP "handshake" issue. You can try two things:

First, turn off both the STB and the TV; then:
Turn on the TV, and then the STB . . . . might work
Turn on the STB and then the TV . . . . might work
If either one works, you have a temporary fix; if neither works, then you must contact samsung for a fix.

Other option, for short-term fix would be to use Component cables which will work.
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Old 10-04-2007, 05:29 PM   #3
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You should try another device with an HDMI cable to just be sure there is no problem with the HDMI input on your TV. Then try another HDMI cable, maybe the one you have is defective.

As Bill says, sometimes there is a problem with Samsung and HDMI, but not as bad as no signal at all. And your thought that the box may have been damaged by the other tv is possible.

At this point it could be any of the above. I'd try the things I mentioned then at least you'll be able to know which is the defective part.

PS: I use component cables with my HDTV and like the picture better. But you should be able to use what you like.
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Old 10-04-2007, 06:04 PM   #4
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Here's a long shot. Your display resolution is 1366 x 768, which is not a standard ATSC HD resolution (either 720p--1280 x 720, or 1080i--1920 x 1080).

Often DVD Players and STB's interrogate the display over HDMI to find out it's resolution and set the output format accordingly.

It would be a really stupid oversight to not allow the STB to work with alternate resolutions, but it *is* a possibility. Perhaps the display is supposed to tell the STB it's 720p or 1080i, but it's telling it it's 1366 x 766 and the STB doesn't like it?
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Old 10-04-2007, 06:58 PM   #5
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I haven't tried another device yet (such as my dvd player hooked up to a different TV) that has an HDMI connection -- will try that tomorrow.

I had not heard of the "handshake" issue before the response above. After doing a little research over the Internet the past hour or so, it sounds as though that may be the real problem. A couple of times over the past two days, when I have had the component video cables hooked up (component video Source on the TV) between the cable box and TV (which does offer me HD on the HD channels) and have then plugged in the HDMI both to the cable box and TV, the TV has given me a copy protection message when I switch the TV to the HDMI Source.

Is there any way around this? Would Samsung be of any help to deal with this issue?

Should I just live with the component video/audio cables which gives me an HD picture and forget about it?

Who would have ever thought just a few years ago that a TV and cable box interface could be so damn complex?!?
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Old 10-05-2007, 07:38 AM   #6
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opps I see you tryed what I was going to tell you

Last edited by Tweaver; 10-05-2007 at 07:41 AM.
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Old 10-05-2007, 07:50 AM   #7
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All HDMI ports support HDCP protocols, it was only some older DVI ports on HDTV's that did not, so if that is the problem (the HDCP handshake not occurring), then the order in which you turn things on should correct it.

The "not supported" message is a different error message than the "copy protection" message, that's why I'm wondering if it may be a problem with the resolution handshake...

Last edited by BobY; 10-05-2007 at 07:54 AM.
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Old 10-05-2007, 11:05 AM   #8
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Not sure if you did this, but I had the same problem with my Samsung, HDMI not supported message, I hooked up component cables and HDMI at the same time to my TV and DTV box, set the input on the TV to component, waited about ten minutes then changed input to HDMI and unhooked the component cables, it worked for me, but I haven't any idea why.
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Old 10-05-2007, 11:25 AM   #9
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My thanks to all of you. Just thought I'd let you know of the outcome.

After struggling with this for two days, this morning I swapped out from Time Warner the cable box -- same model, etc. Brought it home, hooked it up, used the box's resolution to set the appropriate resolutions for the TV, set the picture format, etc., hooked up the HDMI at both ends, and SUCCESS.

Wasn't a TV issue -- it was a bad cable box issue. Finally.

Thanks for the suggestions.
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Old 10-05-2007, 11:45 AM   #10
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I think it's more likely the replacement box had updated firmware which fixed a bug/compatibility issue, but, whatever, as long as it works!
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Old 10-05-2007, 11:55 AM   #11
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You're right. Probably either needed a firmware update or it had a bad HDMI port.
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Old 10-05-2007, 12:58 PM   #12
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Quote:
Originally Posted by hayesdt View Post
After struggling with this for two days, this morning I swapped out from Time Warner the cable box -- same model, etc. . . . SUCCESS.
Wasn't a TV issue -- it was a bad cable box issue. Finally.
And that after:
Quote:
I've been on the phone over the past two days . . . and four times with the Time Warner folks (who claim that the fault is with the TV).
As polite as they might have been, they did NOT do their job and failed to address a customer problem. Only shows what they think of the customer and the poor standard of customer service . . . "pass the buck, not the service!!!"
Also goes to show the importance of careful, well thought out troubleshooting.

Anyway, glad to hear that you finally resolved your problem.
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Old 11-20-2007, 10:44 PM   #13
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Default Help with "Protection" message

Found this thread through extremely difficult means. I think this might be the problem I am having with Time warner + Samsung HT x70 + HDMI

The set up worked fine for 3 months, then a few days ago, the stereo receiver would shut down by itseld (go to standby) with a "PROTECTION" message on the screen. If I turned it on again, would be ok for about 5 minutes and then shut off again. Is this the same problem others are describing?

Why would this happen after 3 months?

What are component audio? What is the set up?

Sorry, am a complete novice. Wanted to keep it simple so I got the HDMI... guess it was a bad idea.

HELP!!!!!
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Old 11-20-2007, 11:31 PM   #14
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Sorry, Some non-native settings are not available, as you described, over HDMI with Samsung.
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Old 11-21-2007, 09:32 AM   #15
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If the "protection" message is coming from your audio system, I think it's trying to tell you it shut itself down to protect itself.

Either you have too great a load on the audio outputs (too many speakers, speaker impedance too low), too much heat build up from lack of ventilation or there is a fault in the output amplifier.

It is common for audio systems to switch to standby if they sense too much heat, too great a current drain, to low an output voltage or improper DC levels.

Check the receiver manual for possible causes of the "protection" message and possible remedies.
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