Hello,cjmccarthy72 wrote:Sorry if I post this "elsewhere" as well, but just have some questions on this fix- I have done the debug regedit and the nv_disp.inf fix- I think/hope. My problem is the screen flashes black for a couple of seconds as it resizes itself to "wide" it tells me when I start/stop a tv show recording/blu-ray etc. I fix it by changing "Content type reported to the display" away from autoselect and applying full-screen video. But every time the tv is turned off, auto-select is reapplied. My questions arenewfiend wrote:There is a Workaround for the problem though as found here on WEC http://experts.windows.com/frms/windows ... 02998.aspx
The thing is.. I dont think anyone should have to go to this length to fix a Video Card that shoulld Just work! From the looks of things though Ian's workaround fixes the issue. I keep hoping Nvidia will just finally FIX IT!! UGH!
HTH,
newfiend~
1- Is the fix listed above meant to stop this black screen/resize?
2- am I meant to be selecting another option? A DVI option?
3- Having applied the fix- (I think), should I now choose Nvidia settings for everything or allow other devices to control this?
4- I currently have resolution at 1080p & 60hz- should I be changing this?
5- I had my d-value for my reg edit as 2 as my dynamic range was 16-255. The inf. change ends in 1- is that correct- & should I change the range to 0 - 255?
I will get round to listing my specs when I have a moment but I have lastest drivers, Sandybridge i5 and GT540 graphics and a panasonic plasma tv but with the HDMI going through my soundbar amp. Any help much appreciated as very much a novice when it comes to regedit.
I know there is one physical solution- a Geffen device but not about to spend £100 on this.
I will try and help you as much as I can.
This fix is for a flicker issue that resides in the current batch of Nvidia Drivers. You can view what the Flicker issue is by watching the YouTube video in my previous posts.
The Flicker issue is present when the content you are watching changes frame rate from 29hz to 59hz durring content playback.
If you have HBO (i am not sure if you do) this channel seems to do it VERY frequently. I also have a recording of Star Wars the Clone Wars that does it. I keep this file to test new Nvidia Driver builds to see if the problem still exists.
I have not done the Regedit fix until tonight. (5/31/12)
After months of crappy driver builds from Nvidia I had finally had enough and decided to try the regedit.
The first thing I did was download and Install Nvidia Driver 301.42 (latest release)
I ran the Installer. During Install I selected Custom > and checked the Box for a Clean Install and continued and finished the Installation.
I then Rebooted the PC.
After reboot I opened Regedit and Ran as Administrator (Right click regedit and select Run as Admin).
I navigated to [HKEY_LOCAL_MACHINE\SOFTWARE
and created the new keys : Debug & ehPresenter.dll
So I now have this below:
[HKEY_LOCAL_MACHINE\SOFTWARE\Debug\ehPresenter.dll]
Created and new DWORD String in ehPresenter.dll called NominalRange then right clicked the new string and selected modify and set it to 1 like below
"NominalRange"=dword:1
This will set the Dynamic Range to Full (0-255) This will give you the best color range.
once this is done you can exit Regedit.
Open Nvidia Control Panel
On the Left Under Display Select Adjust Desktop color Settings
On the right Under #2 select Use Nvidia Settings
Under #3 Set Digital Color Format to YCbCr444
Set Content Type Reported to Display to Full Screen Videos.
On the Left Select Adjust Video Color Settings
If you have made any changes here they should be set back to defaults after the new Driver install But you want #2 set to With the Video Player Settings.
You do NOT want to make any adjustments here.. I used to use Nvidia Settings and click advanced and set the Dynamic Range to Full (0-255).. You no longer want to do this as the Registry setting you set up will set the Dynamic Range for Media Center to Full (0-255) for you and give you the best color range for your TV viewing in Media Center.
Save any changes you make in Nvidia Control Panel by selecting Apply in the lower right corner and any pop up boxes that apper to verify changes and then exit Nvidia Control Panel.
Doing this has fixed the Flicker Issue for me completely. I tested with both my test file (clone wars) and HBO while using the Media Center 411 Info screen to verify the frame rate was indeed changing but it did NOT flicker! So the Registry fix did work for me. I did not have to modify the driver files in any way just add the Registry fix by Ian.
To answer your Questions above..
#1 this fix is meant to stop the 59/29 bug or white flickering issue that happens when watching content that constantly switches frame rates durring playback.
Usually setting Content reported to display stops the Black flicker screen resize issue. What Driver version are you currently using? I would try the latest Driver 301.42 and the steps above to see if it fixes your problem, but only if you get white flickering (frame rate changing during playback of content).
#2 No I am using HDMI from HTPC > AVR > TV some of the settings in Ian's driver tweaking are meant to trick your HDMI into thinking its a DVI connection to get better black levels and is not a necessity.
#3 Read My guide above.. Only tweak the settings I mentioned! You do NOT want to mess with Dynamic Range in Nvidia Control Panel, like I said before this is all set up in the Registry and you should let the Video Player Pick the settings for Dynamic Range.
#4 No that is the correct setting. 1080p and 60Hz is correct as long as your Display is a 1080p display.. I just noticed that your from the UK.. I hope I am right that 60hz is correct for the UK ..Maybe someone from the UK can confirm that 60Hz is indeed correct as I live in the U.S.
#5 The Dynamic Range is best set to 1 which is Full (0-255) for the best color range. This is also outlined in the instructions I posted above.
I hope this helps you out. I hope that the latest Driver package stops the Content Type reported to display from reverting back to default settings. If not let me know. What brand of Video Card are you using? I have a EVGA GT430 and I do not have that issue.
Post back and let me know how you get on.
Tons of Thanks goes out to Ian at WEC.. His workaround fixed the 59/29 bug for me on the latest Nvidia Driver Build
Thanks Ian!!
newfiend~