A Way to Fix RGB Output in NVCP (HDMI)

[LuckyNumber8]

This solution worked for me. Had to add this entry twice in my registry and now my Panasonic G25 can use 0-255 with my PC. Don't see much of a difference, but better off being able to use the entire spectrum.

I've tested many LCD HDTV's, picture in all of them looks like user "gh4stly" shown in his 2 screens, colors are bleeding So I see HUGE difference between "SD/HD" mode resolutions and "PC". Only PC modes produce great colors.

I install the NVidia drivers normally and open regedit and simply search (Ctrl-F) for an nvidia related drivers area entry like perhaps

UserModeDriverGUID

Everywhere you find it (F3 to find next occurance), add the DWORD entry below next to it.

SetDefaultFullRGBRangeOnHDMI

setting its value to 1.

Can anyone make it simpler ? Maybe I'm doing something wrong.
In regeditor I search for "UserModeDriverGUID", this is where I put that DWORD entry "RGB line" setting and its value to 1, than I should press F3 to find next occurance.. but when I pres F3 reqedidtor show the same place and lines, when I try to add "rgbline" allert will pop up that this line allready exist. So regedit only allows me to put only one "RGB line".

I've done that and still colors looks like bad, nothing like "PC" mode resolutions

[Prophet]

Originally Posted by maco07

I resolved it using this trick:



taked from: http://forums.nvidia.com/index.php?showtopic=216099

A space snuck in there. The correct string should be :
HKR,,SetDefaultFullRGBRangeOnHDMI,%REG_DWORD%,1

[assplats]

Originally Posted by mark007

This is another nice way I found to enable full range RGB, even works after driver installation so avoids messing with inf files.

http://forum.doom9.org/showthread.ph...34#post1567634

I guess it would be easy to put together a small visual basic exe that does the same thing, ie searches for the correct registry area and adds the registry entry post driver install.

I went ahead and programmed a small C# program that can do this for you. I'll link to the other thread that I've been active on (hopefully that's all right):

http://www.avsforum.com/t/1387832/ht...#post_22484920

[NeoandGeo]

Yes! That program is amazing, many thanks!

Nvidia, please fix this problem, to those that aren't tech savvy leaving this bug makes your software and hardware look very amateurish and almost certainly makes AMD look better to them.

[Bradders684]

Originally Posted by NeoandGeo

Yes! That program is amazing, many thanks!

Nvidia, please fix this problem, to those that aren't tech savvy leaving this bug makes your software and hardware look very amateurish and almost certainly makes AMD look better to them.

Could you upload it somewhere please, I don't want to create an account on a forum i wont be using.

[NeoandGeo]

With the blessing of the creator I will.

[assplats]

Originally Posted by NeoandGeo

With the blessing of the creator I will.

Sure, I don't mind.

Let me know how it works for you guys.

If you run a command prompt as administrator, and then call the command, it shows you any reg change it makes. Useful for seeing exactly what is happening.

[assplats]

P.S. That other tool I created on that page "Monitor Reset" helps out with HDCP issues sometimes. I started using that technique (and then later created that program) when the HDMI Detective wouldn't show up as a proper HDCP device in my Nvidia control panel. I had to send the HDMI Detective back.

There's also other useful tips on there as well, but you guys probably already know them!

[NeoandGeo]

Do you know where the fix for the silent stream bug is? I still get it occasionally with the very beginning of audio in a Windows session.

[assplats]

Originally Posted by NeoandGeo

Do you know where the fix for the silent stream bug is? I still get it occasionally with the very beginning of audio in a Windows session.

I'm not sure if I'm familiar with that bug. What exactly is it?

[Mda400]

Originally Posted by NeoandGeo

Do you know where the fix for the silent stream bug is? I still get it occasionally with the very beginning of audio in a Windows session.

Its on this forum. It is also programmed in C. Although it doesn't work as well as just constantly playing a silent stream file from a media player, it plays a silent .wav file and has a good low memory footprint since your going to be constantly running it.

http://forums.guru3d.com/showthread....ent+stream+bug

(Credits to MarcVampire)



As for forcing full RGB just in windows whether it be a registry hack or my custom refresh rate trick, the HDTV or monitor your using has to have a way to switch itself to PC mode when using a TV broadcast format resolution like 1080p, 720p, 480p, etc. (1080i is not possible since its interlaced and a flat-panel cannot interpret two different divisions of resolution lines at once).

When you send your HDTV or monitor a PC resolution (1920x1080@60hz as opposed to 1080p which is essentially the same thing, just different usage), it aligns every 3 sub-pixels in a pixel to show the correct color gamut and sharpness of very small text made for that resolution.

For example: using a Source game command console and having those red letters that show errors appear on the console and they appear blurry in non-PC mode. Change your HDTV to PC mode and that small red text lettering becomes legible due to each subpixel lining up with the main pixel.

As for any arbitrary "setfullrangeHDMIbydefault" kind of command, it may work for contrast range (0-255), but it doesn't cause your display's sub-pixels to line up correctly and you will get better colors, but that "bleeding" everyone describes.

Even my refresh rate trick won't work all the way unless to get your display into "PC mode". I have tried 60.001hz WITHOUT my HDMI input labeled "PC" and I can tell you it forces 0-255 range of contrast, but the display still treats it as 1080p because its so close to 1920x1080@60hz. Again, you need either a setting (usually an input label named DVI or PC in your TV's input menu) or picking a PC resolution from the Nvidia control panel might help enabling PC mode.

This is why you buy a quality name brand 1080p display like LG, Samsung, Sony, etc. as these are known to have options to put their displays in PC mode when at their native resolution.

[assplats]

Originally Posted by Mda400

Its on this forum. It is also programmed in C. Although it doesn't work as well as just constantly playing a silent stream file from a media player, it plays a silent .wav file and has a good low memory footprint since your going to be constantly running it.

http://forums.guru3d.com/showthread....ent+stream+bug

(Credits to MarcVampire)



As for forcing full RGB just in windows whether it be a registry hack or my custom refresh rate trick, the HDTV or monitor your using has to have a way to switch itself to PC mode when using a TV broadcast format resolution like 1080p, 720p, 480p, etc. (1080i is not possible since its interlaced and a flat-panel cannot interpret two different divisions of resolution lines at once).

When you send your HDTV or monitor a PC resolution (1920x1080@60hz as opposed to 1080p which is essentially the same thing, just different usage), it aligns every 3 sub-pixels in a pixel to show the correct color gamut and sharpness of very small text made for that resolution.

For example: using a Source game command console and having those red letters that show errors appear on the console and they appear blurry in non-PC mode. Change your HDTV to PC mode and that small red text lettering becomes legible due to each subpixel lining up with the main pixel.

As for any arbitrary "setfullrangeHDMIbydefault" kind of command, it may work for contrast range (0-255), but it doesn't cause your display's sub-pixels to line up correctly and you will get better colors, but that "bleeding" everyone describes.

Even my refresh rate trick won't work all the way unless to get your display into "PC mode". I have tried 60.001hz WITHOUT my HDMI input labeled "PC" and I can tell you it forces 0-255 range of contrast, but the display still treats it as 1080p because its so close to 1920x1080@60hz. Again, you need either a setting (usually an input label named DVI or PC in your TV's input menu) or picking a PC resolution from the Nvidia control panel might help enabling PC mode.

This is why you buy a quality name brand 1080p display like LG, Samsung, Sony, etc. as these are known to have options to put their displays in PC mode when at their native resolution.

Also, just putting it into PC mode doesn't always fix it all the way. It appears a lot of TVs won't do it if your using audio over the HDMI signal. The other thread quoted earlier talks of people using a DVI to HDMI connector, having no sound go over the HDMI cable and putting your TV in PC or Graphics mode.

I unfortunately need to have audio over HDMI, so it's not 4:4:4 on my screen. However, putting it into PC mode (called a scene on Sony TVs) gave me more clarity. I can actually read the red chat text in Tribes now sitting 10 feet away.

[assplats]

Originally Posted by NeoandGeo

Do you know where the fix for the silent stream bug is? I still get it occasionally with the very beginning of audio in a Windows session.

After looking into this issue, I realized why I don't have this problem.

This is taken from my other posting at http://www.avsforum.com/t/1387832/ht...#post_21900120

Audio Stuttering or drop out after doing 1.5x fast forward (this can also help speed up channel changes)

-This happens when your Speaker Configuration is set to anything but stereo. The reason Media Center freaks out is because it has to decode the signal and send it out as PCM, so it can play the audio at 1.5x speed. So it switched from Dolby Digital (what the channel is using), to Multi Channel PCM and then back to dolby digital once you hit play. This will create around 10 seconds of audio stutter or total audio drop out, where afterwards it will kick back in.

Two ways to fix this, that I've found:

(Not the way I fix it, but works too) Set your speaker config to stereo, so 1.5x fast forwarding only switches to regular stereo, and then switches back to dolby digital properly. I personally didn't want to use this method

(The way I fix it) Or you can go into your audio device properties, advanced and then uncheck "Allow applications to take exclusive control of this device." This will force media center to decode the dolby signal and use Multi Channel PCM for everything. So, when you watch TV, it's PCM, when you fast forward, it's PCM. Everything works well now. You won't get the pretty Dobly sign on your receiver though...

[Grahf]

Originally Posted by assplats

I went ahead and programmed a small C# program that can do this for you. I'll link to the other thread that I've been active on (hopefully that's all right):

http://www.avsforum.com/t/1387832/ht...#post_22484920

Just wanted to say *THANKS*

[Prophet]

Assplats: Mind sharing those tools you mention somewhere where I dont have to sign up?

[assplats]

Originally Posted by Grahf

Just wanted to say *THANKS*

You're welcome!

Originally Posted by Prophet

Assplats: Mind sharing those tools you mention somewhere where I dont have to sign up?

Sure, do you have any place in mind for a quick upload? I've never uploaded a file to a file sharing service before.

[assplats]

Originally Posted by Prophet

Assplats: Mind sharing those tools you mention somewhere where I dont have to sign up?

Here is a link:.

http://speedy.sh/Vx7F4/SetFullRGB.zip


And here is the MD5:

MD5: 3a144de9053e322d985dcad924aef127

[assplats]

Here is a link for the Monitor Reset tool as well, if anyone wanted that:

http://speedy.sh/UB9Qd/Monitor-Reset....0-version.zip

MD5:

588d568ba37f834827987559dd991f61

[Prophet]

Originally Posted by assplats

Here is a link for the Monitor Reset tool as well, if anyone wanted that:

http://speedy.sh/UB9Qd/Monitor-Reset....0-version.zip

MD5:

588d568ba37f834827987559dd991f61

Thanks appreciate it!

Ps. What does the reset monitor do?

[assplats]

Originally Posted by Prophet

Thanks appreciate it!

Ps. What does the reset monitor do?

It turns off the signal to your monitor/tv (puts it to sleep) and then wakes it back up after so many seconds (defaults to .5 seconds, but I have mine do 10 seconds). I find that if I run it after my computer wakes from sleep, it helps with some handshake issues (originally it was for HDCP issues).

[greywolf0]

I am having the same limited RGB problem. I just got an SSD and installed win7. I still have winxp on my other hard drive. The winxp has the crushed blacks, but otherwise everything looks normal and good. The win7 has the latest nvidia drivers and looks washed out, with very greyish blacks and washed out colors and contrast. I've tried usind the RGBtoggle program and when I restart nothing happens. I am on an admin account and checked admin privileges in the program properties as well. I've also tried the 59.999 and 60.001hz trick. I can't get it to recognize my display as PC. It always shows up as HDMI. There's nothing in my TV settings that will make it be recognized as a full RGB set, but seeing as my winxp boot has no problems, if only the win7 drivers would co-operate.

[Mda400]

Originally Posted by greywolf0

I am having the same limited RGB problem. I just got an SSD and installed win7. I still have winxp on my other hard drive. The winxp has the crushed blacks, but otherwise everything looks normal and good. The win7 has the latest nvidia drivers and looks washed out, with very greyish blacks and washed out colors and contrast. I've tried usind the RGBtoggle program and when I restart nothing happens. I am on an admin account and checked admin privileges in the program properties as well. I've also tried the 59.999 and 60.001hz trick. I can't get it to recognize my display as PC. It always shows up as HDMI. There's nothing in my TV settings that will make it be recognized as a full RGB set, but seeing as my winxp boot has no problems, if only the win7 drivers would co-operate.

Use this tool: http://blog.metaclassofnil.com/wp-co...angeToggle.zip


Much easier than my trick i did a while back and doesnt break compatibility or cause stutter with games due to unusually set refresh rate. Im using it now and it works (although i added the registry entries manually the first time). but it works...

You have to run it EVERYTIME you install a new driver.