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420 posts

Ultimate Geek
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Topic # 111302 29-Oct-2012 22:11 Send private message

Hi all,

I have a Windows media centre PC that was running Windows 7 64bit.

It's connected to a TV via HDMI and a second TV in the bedroom via HDMI extender over Cat5/6 cable.
All was working flawlessly on W7 but after the upgrade to W8 it no longer works (the second TV says 'no signal')

In windows 8 I can turn on the option for the second screen to duplicate, but it still doesn't work?
The nVidia control panel shows it as an Analogue Display (even though it is plugged into HDMI)

I can normally nut this stuff out, maybe it's related to my wisdom teeth being removed on Friday. I didn't realise they actually contained wisdom!!

Cheers for any help Tongue Out


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221 posts

Master Geek
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  Reply # 709023 30-Oct-2012 10:49 Send private message

I'll take a guess ---- some new kinda copyright protection in win8. Or perhaps some kind of hdcp handshake issues with win8 and your setup.

2578 posts

Uber Geek
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  Reply # 709193 30-Oct-2012 15:12 Send private message

Sorry I cannot help other then to ask... why? Why go from W7x64 which is rock solid and has great WMC support to W8 which is new, unproven and known not to offer anything extra in regards to WMC??? In fact it sounds like it is more limited and not just in regards to your HDMI issue :(

New is NOT always better...







Media centre PC - Case Silverstone LC16M with 2 X 80mm AcoustiFan DustPROOF, MOBO Gigabyte MA785GT-UD3H, CPU AMD X2 240 under volted, RAM 4 Gig DDR3 1033, HDD 120Gig System/512Gig data, Tuners 2 X Hauppauge HVR-3000, 1 X HVR-2200, Video Palit GT 220, Sound Realtek 886A HD (onboard), Optical LiteOn DH-401S Blue-ray using TotalMedia Theatre Power Corsair VX Series, 450W ATX PSU OS Windows 7 x64

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Uber Geek
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  Reply # 709417 30-Oct-2012 20:10 Send private message

I suspect that this can be easily solved by upgrading your box from Windows 8 to Windows 7.


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Uber Geek
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  Reply # 709429 30-Oct-2012 20:17 Send private message

Install any Windows updates. Look up on Nvidia's website to see if any new Windows 8 updates approved are available for your graphics card.






420 posts

Ultimate Geek
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  Reply # 709642 31-Oct-2012 07:49 Send private message

@Nety Newer is always better! You have to try these things. Analogue TV and video tapes where rock solid as well :-P

@JimmyH I like it :)

@billgates I have the latest nVidia W8 drivers

Windows 8 is actually pretty useful on a TV with it's big stupid tiles, they are easy to see from the couch.

I remember having an issue getting this going on W7 as well, I just can't remember how I got it going. I'll will win!!

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Uber Geek
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Reply # 709665 31-Oct-2012 08:47 Send private message

sittingduckz: I remember having an issue getting this going on W7 as well, I just can't remember how I got it going. I'll will win!!

Good luck - please post the steps you took to resolve this issue when you finally get it done. Any info you could post about avoiding headaches will be appreciated by many...

Issues like this are the reason I won't be installing W8 on what I use as an "HTPC" but I have no doubt there'll come a day when this is no longer an option.




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Uber Geek
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  Reply # 709668 31-Oct-2012 08:49 Send private message

If you swap the plugs on the back of the PC (so that the extender is connected to the HDMI port you know is working), does the TV on the end of the extender then work?



420 posts

Ultimate Geek
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  Reply # 711090 2-Nov-2012 18:31 Send private message

I WIN!! I finally had some time to fiddle with this and I fixed it.

Method:
1. Connect both screens and switch on
2. Uninstall the nvidia display driver in device manager (not recommend while your wife is watching Home& Away)
3. Restart and let Windows reinstall the driver automatically (with both screens on)
4. Select devices on the pop out side bar thingy> second screen> duplicate
5. DONE

It turns out to have nothing to do with the extender, plugging both tv's directly still didn't help, I might change the title if I can to better reflect the issue.

Should be: 'Dual monitor with nvidia geforce not working on Windows 8'

Hopefully this will help someone else

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  Reply # 711196 2-Nov-2012 23:28 Send private message

Have changed title. Good to here you got it sorted. So you are now running on the MS drivers is that right?







Media centre PC - Case Silverstone LC16M with 2 X 80mm AcoustiFan DustPROOF, MOBO Gigabyte MA785GT-UD3H, CPU AMD X2 240 under volted, RAM 4 Gig DDR3 1033, HDD 120Gig System/512Gig data, Tuners 2 X Hauppauge HVR-3000, 1 X HVR-2200, Video Palit GT 220, Sound Realtek 886A HD (onboard), Optical LiteOn DH-401S Blue-ray using TotalMedia Theatre Power Corsair VX Series, 450W ATX PSU OS Windows 7 x64

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Wannabe Geek


  Reply # 713400 7-Nov-2012 10:33 Send private message

sittingduckz: I WIN!! I finally had some time to fiddle with this and I fixed it.

Method:
1. Connect both screens and switch on
2. Uninstall the nvidia display driver in device manager (not recommend while your wife is watching Home& Away)
3. Restart and let Windows reinstall the driver automatically (with both screens on)
4. Select devices on the pop out side bar thingy> second screen> duplicate
5. DONE

It turns out to have nothing to do with the extender, plugging both tv's directly still didn't help, I might change the title if I can to better reflect the issue.

Should be: 'Dual monitor with nvidia geforce not working on Windows 8'

Hopefully this will help someone else



I also have problem with Windows 8 on my HTPC Cry Before Windows 8 I was using Windows 7 and everything was fine but with Win 8 I have "no signal" message on my LG 42" LED TV. I tried to change HDMI cable but that didn't do the trick as well as uninstalling nVidia drivers (my HTPC is based on nVidia ION). Then I connected HTPC to another LG 27" LED TV and it works without any problem. Bots TVs have Full HD resolution and on the problem TV all I can see is BIOS and boot up till Windows switch to graphical UI - then I get "no signal" message :(

Please is there a suggestion what should I try next? Of course I could go back to Windows 7 (I have image of the system drive) but I prefer Windows 8 for it's speed, better memory management and then the big tiles that I like for HTPC.

Thank you.

906 posts

Ultimate Geek
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  Reply # 714908 9-Nov-2012 20:54 Send private message

Nety: Have changed title. Good to here you got it sorted. So you are now running on the MS drivers is that right?


Ta, I'm gonna try that. I've got the exact same problem. Vista worked fine through the TV fine with no tweaking, as did Ubuntu when I last tried it.




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906 posts

Ultimate Geek
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  Reply # 715247 10-Nov-2012 17:41 Send private message

Dang... that didn't work.

I'm going to go for a refund. The only reason I use the laptop is as a media centre.
Not happy about returning to Vista... might just make the lappy a Linux machine.




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