No Video out when PC started with TV off

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KrazyKid

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#31135 5-Mar-2009 22:07

I have a Nvidia 8600GT card and a Panasonic Plasma TV connected via DVI -> HMDI. The OS is Vista 32 bit.

All runs fine and the TV is detected if I boot the PC up and the TV is on. But if the TV is off when the computer starts (or restores from hibernation) I get no video signal and I have to reboot the PC to get video.

I can turn the TV on and off fine as long as the PC stays running and my video signal is fine.

Any ideas on how to force the Drivers to output to the TV at all times?

Thanks

Dingbatt

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#199560 6-Mar-2009 08:05

I have exactly the same problem with my set up (same h/w and s/w as yours). However mine successfully resumes from hibernation whether the TV is on or off.

I just assumed it was a hdmi handshake thing, where if the computer didn't get a successful handshake then it just stopped using that connection. It starts right from the POST before the OS is loaded so I don't know that drivers would help. So I always make sure I have the TV on first for the initial bootup and have memorised the keystrokes required to shut the HTPC down blind if I forget.

I seem to recall in a thread from last year that you can get a device the fits to the hdmi/dvi port to memorise the HDCP handshake details. But that involves spending money so unless there are amazing revelations in this thread I'll just stick to the 'TV first' method.

“We’ve arranged a society based on science and technology, in which nobody understands anything about science technology. Carl Sagan 1996

CYaBro

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#199581 6-Mar-2009 09:33

It's been a while since I looked at the Nvidia drivers but I know that the ATI drivers have an option to 'Force TV Detection' which I have used to fix the same problem you are having.

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KrazyKid

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#199662 6-Mar-2009 19:30

I am not sure the HDMI is the issue - I found a little util that forces the EDID info to be resent but that does not help. However this is all new to me so I may be wrong.

The util is here: http://thydzik.com/tag/hdmion/

DingBatt -
Yep I saw that thread, but like you not spending money sound a good plan to me.

-What do what sleep state do you use? I have only tried suspend to RAM.
This all came you because I was playing with powerscheduler on with MediaPortal. - if I can get the output to stay on through hibernation I can live with making sure the TV is on for start-up.

I would love some idea of how you set up mediaportal to record from standby.
I have ended up with a util called MST to help but I am not sure if I have it 100% right yet.

Can you give me some pointers please

mpjkraak

3 posts

Wannabe Geek

#199689 6-Mar-2009 22:24

Concerning your screen recognition try what I posted here;
http://www.geekzone.co.nz/forums.asp?ForumId=84&TopicId=30396&page_no=1#199686

Much more stable & is initiated by the firmware of the TV.

KrazyKid

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#199702 7-Mar-2009 00:15

Monoinfo is a nice little Util and created a good monitor.inf file.
However upon testing it made no difference, the issue is still there. Thanks anyway.

The issue is indeed before POST as I cannot get a picture at post if I turn the TV on even a few seconds late.
If I can crack the hibination restart issue then I can live with it I think.

Hopefully Dingbat (or others) can give me some hints on the standard mediaportal plugin for powerscheduler so I can save power with Mediaportal.

mpjkraak

3 posts

Wannabe Geek

#199711 7-Mar-2009 03:28

Ooops was already mentioned but HDMIon.exe is FREE. No $$$$

http://thydzik.com/hdmiOn/hdmiOn.exe

Not sure what to make of the second post in the thread but he's agreeing not to spend $$$ on something that doesn't cost anything???????

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Dingbatt

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#199758 7-Mar-2009 13:23

KrazyKid: Monoinfo is a nice little Util and created a good monitor.inf file.
However upon testing it made no difference, the issue is still there. Thanks anyway.

The issue is indeed before POST as I cannot get a picture at post if I turn the TV on even a few seconds late.
If I can crack the hibination restart issue then I can live with it I think.

Hopefully Dingbat (or others) can give me some hints on the standard mediaportal plugin for powerscheduler so I can save power with Mediaportal.

I have posted a reply on the other thread you started on Power Scheduler.
It's not foolproof but I find if I do a complete shutdown and startup every couple of days then the HTPC will normally wakeup record and then go back to hibernate. Have to do a complete shutdown rather than a reboot otherwise my HVR-2200 hides from Windows.

“We’ve arranged a society based on science and technology, in which nobody understands anything about science technology. Carl Sagan 1996

kiwijunglist

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#199911 8-Mar-2009 15:52

What happens if you turn the computer on with TV off, then wait a few secounds, then turn on TV before vista starts to load. ie turn TV on before bios has finished posting This will help find where the problem is.

Try the following ideas

1. add HDMIon to startup menu, or to a macro shortcut, this may wake the monitor

2. Bios setting -> boot post screen to HDMI rather than DVI or VGA

3. Gefen DVI Detective (This will 100% solve your problem)

4. Under device management change the power options for the video adaptor

5. Run a marco that changes the display resolution and map it to a keyboard / remote shortcut, this may force the video adaptor to wake up.

HTPC / Home automation (home assistant) enthusiast.

1gkar

722 posts

Ultimate Geek

#201248 14-Mar-2009 23:16

Question: I notice the respondent: Dingbatt, has siged his hardware. Krazykid, what is yours? If it is the similar: AMD 4200-5200, then this may be of interest.

I had a similar issue, where there was no video signal after resuming from S3 standby. I had a 29" Sony CRT TV connected via composite (I think: it was some time ago)

This happened everytime. I replaced the motherboard, the CPU, the graphics card to no avail.

Anyway, here is the thread. I hope you have a better resolution than I did. But if you don't: don't spend too much effort attempting to rectify the issue; change your hardware. I'm glad I did.

Silverstone LC14 HTPC Case/Intel E4600 CPU/GA-EP35-DS3 MOBO/Asus EN9500GT graphics/2GB RAM/total 2TB HDD space/HVR-2200 & 2X 150MCE tuner cards/LG GGC-H20L BD Drive/MCE2005/Mediaportal/TVServer 1.1.0Final/LG 55"3D LED-TV/Denon AVR-1803 receiver/X1 projector

Dingbatt

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#201282 15-Mar-2009 13:50

mpjkraak: Ooops was already mentioned but HDMIon.exe is FREE. No $$$$

http://thydzik.com/hdmiOn/hdmiOn.exe

Not sure what to make of the second post in the thread but he's agreeing not to spend $$$ on something that doesn't cost anything???????

Hardware not software. But thanks for the heads-up on free software.

1gkar: Thanks for the link. I really should frequent the MP site a bit more (and not just look at the NZ thread). I'm not sure if it was karma, but after posting above about no resume problems the system started to have some resume problems.
I can't remember exactly, but it was around the time I installed windows7 beta to dual boot, so I wonder whether the resume problem is somehow tied into the way windows writes to the master boot record (MBR) when going into hibernation. Well I'm assuming it puts info in the MBR because on resume the computer POSTs then jumps to the 'resuming windows' screen. And its not just the video that fails, the resume just stops so I wonder if it is a driver issue, or as you point out, hardware.

“We’ve arranged a society based on science and technology, in which nobody understands anything about science technology. Carl Sagan 1996

1gkar

722 posts

Ultimate Geek

#201324 15-Mar-2009 20:24

Dingbatt:
mpjkraak: Ooops was already mentioned but HDMIon.exe is FREE. No $$$$

http://thydzik.com/hdmiOn/hdmiOn.exe

Not sure what to make of the second post in the thread but he's agreeing not to spend $$$ on something that doesn't cost anything???????

Hardware not software. But thanks for the heads-up on free software.

1gkar: Thanks for the link. I really should frequent the MP site a bit more (and not just look at the NZ thread). I'm not sure if it was karma, but after posting above about no resume problems the system started to have some resume problems.
I can't remember exactly, but it was around the time I installed windows7 beta to dual boot, so I wonder whether the resume problem is somehow tied into the way windows writes to the master boot record (MBR) when going into hibernation. Well I'm assuming it puts info in the MBR because on resume the computer POSTs then jumps to the 'resuming windows' screen. And its not just the video that fails, the resume just stops so I wonder if it is a driver issue, or as you point out, hardware.

I sympathise. Having been through it, it's not something I would wish on my worst enemy. Can you reinstall back to a previous partition/drive image? Would be the simplest way. Is your (HT)PC? an all-in-one PC? Or were you just experimenting?

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Dingbatt

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#201341 15-Mar-2009 22:12

1gkar: .........

I sympathise. Having been through it, it's not something I would wish on my worst enemy. Can you reinstall back to a previous partition/drive image? Would be the simplest way. Is your (HT)PC? an all-in-one PC? Or were you just experimenting?

No I don't have a back-up image, installed Windows7 just to be nosey, but nothing on the HTPC (single seat MP install) is 'mission critical' so the whole thing can be blitzed and reloaded if required. I do note your comment about validating windows too many times.
The failure seems to consistantly occur when the HTPC wakes up to record the 6pm news on One and TV3. I have other instances when I record two programs starting at the same time that don't cause a problem. I currently suspect the HVR-2200 so I might try a different set of drivers. My experience of hauppaugge drivers is they seem to be a bit flakey. Otherwise I will play with tuner priorities and stagger the recording start times to see if that makes difference.

What frustrates me most is the HTPC worked faultlessly for about 2 months, and then didn't. I had done no updates, no configuration changes, nothing. No wonder my mate who works for Apple smiles every time I regale him with tales of my PC woes.

“We’ve arranged a society based on science and technology, in which nobody understands anything about science technology. Carl Sagan 1996

1gkar

722 posts

Ultimate Geek

#201344 15-Mar-2009 23:20

With you speaking about trying new Hauppauge card drivers, I was going to send you over here but alas, no support for HVR-2200 ones. They only have the US 2250 version. Too bad as I used to use their 150MCE drivers as the early Hauppuage drivers were a disgrace.

As for having image backup software: I couldn't live without it.

kiwijunglist

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#201376 16-Mar-2009 09:55

With regards to HVR2200, latest ones are on the www.hauppague.co.uk website

HTPC / Home automation (home assistant) enthusiast.

Dingbatt

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#201379 16-Mar-2009 10:40

kiwijunglist: With regards to HVR2200, latest ones are on the www.hauppague.co.uk website

You mean

http://www.hauppauge.co.uk/

Yes I am using the drivers contained in CD4.6b (latest available).

The computer wakes without a problem when I initiate it either via USB (IR or RF) or pressing the power button.

“We’ve arranged a society based on science and technology, in which nobody understands anything about science technology. Carl Sagan 1996