Operating System HTPC + HDMI + Win7 and its many issues... (2 Viewers)

[Heina]

I cost me a bit of money, bit I must say the Gefen Hdmi Detective sorted out all my problems. From Half & Fullscreen to Bass Player not re-initializing to playing music with my TV Turned Off.

 

[Sausageman]

I've heard of the Gefen detective before, but was told there is no guarantee of success. It also costs £120!

 

[johanj]

I earlier applied Gibmans trick from post #55 and it's still solid for me.Haven't had a half screen since.

NVidia gfx card connected to Onkyo receiver. Then either to Philips TV or Sanyo projector. The switch between Tv/projector is never a problem anymore.

 

[gibman]

I've heard of the Gefen detective before, but was told there is no guarantee of success. It also costs £120!

Dr HDMI
http://www.hdfury.com/products/dr-hdmi-getting-started/

Bought it for parent's rig.
Its cheaper and has more features.

 

[peque]

Oh Damn...

I did the trick with 19+18 pins + 1k resistor... All is working, I can switch off AVR or TV, and windows doesn't realise... BUT, very big downside for me: If you reboot, you totally lose the connection with AVR... (I automatically reboot every morning for stability).

Silly me...

 

[gibman]

Oh Damn...

I did the trick with 19+18 pins + 1k resistor... All is working, I can switch off AVR or TV, and windows doesn't realise... BUT, very big downside for me: If you reboot, you totally lose the connection with AVR... (I automatically reboot every morning for stability).

Silly me...

Axter a reboot try and use teamviewer and connect to it.
Then goto device manager and select scan for new hardware.
The same as running devcon rescan. This thread has more details about it.
If it works. Then put the bat cmd in ur startup folder.
Usually this works in those cases.

 

[peque]

Mmmm... ok. Let me see... Thanks a lot.

 

[peque]

Oh Damn...

I did the trick with 19+18 pins + 1k resistor... All is working, I can switch off AVR or TV, and windows doesn't realise... BUT, very big downside for me: If you reboot, you totally lose the connection with AVR... (I automatically reboot every morning for stability).

Silly me...

Axter a reboot try and use teamviewer and connect to it.
Then goto device manager and select scan for new hardware.
The same as running devcon rescan. This thread has more details about it.
If it works. Then put the bat cmd in ur startup folder.
Usually this works in those cases.

It didn't work for me... scan for new hardware doesn't bring image back to my TV...

If anyone from Spain is interested in a "tricked" HDMI connector, I'll give it for free...

bye!

 

[JJ Tech]

If you are a HDMI + audio over HDMI / AVR user then this thread can be a bit depressing for you.
Now you are warned

I recently changed my own setup (+ a family members setup) from a HDMI + digital coax. audio setup to the latest and greatest HDMI + audio over HDMI using an AVR.

setup 1:
ATI HD5770 + yamaha rx-v661 + sony bravia2 LCD

setup 2:
nvidia gt220 + denon avr-1912 + panasonic plasma

Once working it has a few more advantages than using a plain coax/optical spdif connection.

The real problem is getting it to the working phase ...
you will lose a lot of hair as well as time.

Both the setups above had its fair share of issues.

I was plagued by the following issues:

• the well known & dreaded half screen issue.
• HDMI audio device randomly disappearing when turning on/off TV or AVR.
• can not listen to htpc audio if TV or AVR turned off
• no HDMI audio device when resuming windows.

All these issues were happening because of the HDMI detection "feature" of windows7.
Once you turn off either the AVR or the TV connected to the AVR then windows 7 receives a "HDMI detection event".

In other words, if you turn off the TV you would end up with HDMI audio device "not plugged in".
The same happens when you turn off the AVR.
So if you are listening to music from within MP and decides to turn off your power hungry plasma TV, then a HDMI event would occur and you will lose the audio device.
Result: no music, MP would also often CTD with some error.
Also turning off the TV would also result in the half screen issue as most users have seen.

so once the HDMI audio device has been lost one would think that turning back on the TV or AVR would reintroduce the HDMI audio device.. sadly not. Quite often windows wouldn't detect anything.
So turning the TV/AVR on-off a few times often fixes this.
but as you've guessed the WAF has decreased a lot.
hopefully you haven't put your signature on the divorce papers quite yet.

I tried EDID / merge block, which didn't fix anything on the nvidia setup.
It improved 90% on the ATI setup though.

I then instead tried the HDMI pin 19 tape trick here:

http://social.technet.microsoft.com...l/thread/8a9b5aa7-fe33-4e6d-b39b-8ac80a21fdc2

highly recommended, let me tell you.
maybe it takes a few tries for you to get it right.

but once working it effectively removes the HDMI detection logic.
so as u guessed, audio and video continues, even though you turn off any device.
perfect !!!

once you've got the tape right you really dont want to unplug the cable from your gfx card again.
as it would require you to redo the cable fix...

so.. any issues using this hdmi pin19 trick ?

well, the ATI setup works fine so far.
resumes from standby fine, tv image appears each time, no audio is lost etc. no half screen.

the nvidia setup is worse with this fix.
it might be because of the gt220 chipset, driver rev., the weather etc.
the problem is resuming from standby (S4).
the TV would not output anything.
the workaround is: reboot htpc, use devcon to re-enable gfx driver => bad because you cause resolution change when going back to vga driver (1024*768).

what I found to be working which is still acceptable is resorting to hibernation instead of standby.
so it seems the nvidia driver relies on the HDMI detection event when resuming from standby where as ATI doesnt care

it's really not easy to be a HTPC+HDMI user on the win7 platform
I sure do hope they will introduce an option to let the user decide wether or not to enable the HDMI detection feature.

/gibman

 

[JJ Tech]

Hello,

Forgive me if I am missing the boat here but I have spent a good hour reading but still no success.

I taped pin 19 and now my 40” LED TV says “no signal” and my PC doesn’t see the TV.

I would have thought that pin 19 would have to remain hot (constant voltage detected)????

Suggestions please?

PC configuration:

Motherboard Gigabyte GA-Z77X-UD5H
Processor Intel i5 3570k
Memory Corsair 16 GBs of Vengeance CMZ16GX3M2A1600C10
SSD Crucial 128 GB CT128M4SSD2
Graphics controller Intel 4000
Hard drives Various

Thanks,

JJ