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AMD HD3D Technology + Panasonic 3D HDTV (TX-P50VT20E) and iZ3D

October 30th, 2010 · 19 Comments · Other S3D Tech


After trying the Panasonic 3D HDTV (TX-P50VT20E) with the latest DDD TriDef software with no success in making the TV work with stereo 3D content from the PC, I’ve decided to switch to iZ3D. And I was not even sure if the iZ3D Driver actually does have support for working with 3D HDTVs using HDMI 1.4(a)’s frame packing through AMD’s video driver.The reason for that is due to the fact that they don’t clearly state that and the naming convention of their stereo 3D outputs in the driver is not helping for that at all. But after some discussion about it here and going through the iZ3D forums I saw people confirming that the driver has the support and should work, so back again to the testing…



Unfortunately after a few hours spent in making sure everything is right – reinstalling video drivers with the latest Catalyst 10.10c, the latest iZ3D Driver 1.12 build 4016, trying with different cables and cable adapters there was still not luck in making things work the way the should. The closest thing was kind of making them act as they should, but not exactly as you can see in the video above. I’ve managed to get the same results as with the TriDef Ignition software – the picture is there, you can see some depth of the objects on screen when wearing the glasses, but there is annoying flicker and artifacts all over the screen making it totally unusable in this state.

As you can see from the video the driver shows “ATI Presenter”, which means that it is using the Quad buffer support which in turn should mean that the sync should be perfect and everything should be working just fine, however it is not. Note in the video that even before activating the stereo 3D mode the on-screen image is having the same strange behavior, just no 3D, and after activating the 3D mode the FPS counter still shows 120 fps in the game which is kind of strange… shouldn’t it be 24 or maybe 48, after all this is in the 1080p/24Hz? After switching to 720p resolution from the game to ensure support for 60/120 fps the strange behavior of what is being displayed on the screen is still not gone – the artifacts and flashing are still there. So still no luck with the AMD HD3D technology in terms of support for my Panasonic 3D HDTV, and the problem is that I’ve only seen a lot of complaints from other people trying to make their 3D HDTVs work too. But since both iZ3D and DDD have the same issue I’m starting to think that they are not at fault here (although they can improve in a few areas too), but the actual problem lies withing AMD’s Catalyst driver that probably needs an urgent update or yet another hotfix to resolve the issue.

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19 responses so far ↓

  • 1 Mathew Orman // Oct 30, 2010 at 15:45

    Quad buffer is not going to work.
    Panasonic has internal quad buffer. At the moment you can use PC only in frame compatible stereo layout such as over under or
    side by side.
    You need to wait for nVidia’s 3DTV Play software to enable frame packed HDMI 1.4 mode.
    The only way to get full HD 3D from PC would be frame sequential content at 60p Hz mode.

    Mathew Orman

  • 2 Bloody // Oct 30, 2010 at 16:16

    Mathew, the Panasonic 3D HDTV does already work with the 3DTV Play, so in theory it should work as well with AMD’s solution, however it does not yet apparently…

  • 3 Mathew Orman // Oct 30, 2010 at 17:03

    If it works why aren’t you using the 3DTV Play?
    AMD may have the hardware but need Microsoft update to make it work with DrectX and OpenGL.

    Mathew Orman

  • 4 Bloody // Oct 30, 2010 at 17:32

    Who says I’m not using it with 3DTV Play, however I also have a “compatible” ATI/AMD system that should also work, but it doesn’t… If Microsoft is responsible for the problem, then why AMD did not wait to resolve it them before actually announcing their S3D support?

  • 5 Zerofool // Oct 30, 2010 at 19:07

    Bloody, I have an idea. Now, with the latest 1.12 iZ3D driver, a new scaling feature is introduced. It works by taking the game resolution and scales it to the native resolution of the display. That’s why if you just switch the resolution form inside the game to 720p (without exiting and setting the desktop resolution to 72op60 first), you might get the same artifacts, because the display probably still works at 1080p24 (but it’s strange, on the video I can see the display recognizing 720p60 3D signal..) . Try setting both the desktop (first) and game resolution (second) to 720p60 and see if there’s any difference (although I doubt it). And btw, I’m happy you finally made it work with the quad buffer. We’ll have to wait until AMD fix this, obviously…
    BTW, a user in the iZ3D forum found a way to trick his system that he has an Optima projector, instead of the CRT he actually owns, and it works with Quad Buffer, no problems at all! I’ll try it later today :).

  • 6 Bloody // Oct 30, 2010 at 19:17

    In the video I start with 1080p 24 and then switch to 720p 60Hz mode, just to show there is no difference and the issue is still there in both resolutions. It is pretty much the same thing that happens when using the TriDef…

  • 7 Thomasjn // Oct 30, 2010 at 22:08

    So, at the moment AMD’s 3D doesnt work yet.

    I really wish that AMD would make software and hardware for 3D, like Nvidia is doing.

  • 8 Petri Teittinen // Oct 30, 2010 at 22:11

    I tested both iZ3D and TriDef drivers on the 6870 with an Optoma HD67 projector earlier today. Both worked very well! Too bad all my IR emitters and 3D glasses are proprietary ones (Nvidia & Samsung) so I couldn’t actually view any 3D on the projector… :/

  • 9 Bloody // Oct 30, 2010 at 22:23

    And I’ve tried using the iZ3D Driver with the 3D TV with a GTX 480, no luck with that one either… the result was again half successful, but different than the problem with the AMD. The TV was showing what appeared to be 3D image, but was not actually in 3D mode and the glasses were not active. So I suppose that the iZ3D driver does not provide 3D HDTV compatibility with Nvidia-based GPUs, because it is up to the AMD driver to actually output the stereo 3D image to the TV in the right format.

  • 10 kk // Oct 30, 2010 at 22:28

    I’ve also tried iz3d with my 5970 and a samsung plasma. In 1080p all I got was a black screen. 720p worked, but there were similar interference and artifacts as in your video. Then I disabled Catalyst AI in CC and the interference was gone. But disabling AI means, the just one of the GPU works, so no crossfire.

  • 11 Zerofool // Oct 31, 2010 at 02:39

    iZ3D driver doesn’t support dual-GPU cards/SLI/CrossFire yet, so using such cards/setups at the moment is useless (only one card/gpu will be used anyway). I don’t know about DDD though.

  • 12 Mathew Orman // Oct 31, 2010 at 03:33

    Because AMD is a competitor to nVidia and Microsoft is a partner with nVidia.
    You can figure the rest by yourself.

    Mathew Orman

  • 13 kk // Oct 31, 2010 at 09:07

    Zerofool, if I’m using the ATI 3D DLP (checkerboard) output, both of the gpus work on the 5970. I verified it with gpu-z. And it can be seen just by looking at the framerate numbers. For example Metro 2033 1920×1080 catalyst AI on 35fps both gpu at near 100%; AI off: second gpu at 0%, 16FPS. Some time ago there was an announcement somewhere on the iz3d site that they found some way to utilize dual gpu-s. Maybe just with dx10/11.

  • 14 Bloody // Oct 31, 2010 at 13:13

    Disabling Catalyst AI did the trick, now both iZ3D and TriDef worked with a few games, with others I’m just getting a black screen (probably compatibility issues). It is a bit disappointing not being able to use half of the hardware on your GPU (or if you have more than one card), I do not have to disable it when using the 5970 with the iZ3D monitor, that’s why I did not thought of doing it. Maybe it is not only having a second GPU, but some of the optimizations that Catalyst AI also does. Can anyone with a single video card try disabling Catalyst AI to see if it will help…

  • 15 Petri Teittinen // Oct 31, 2010 at 14:17

    Where do you disable Catalyst AI?

    I went through Catalyst 10.10c Control panel and found one mention of Catalyst AI. Under 3D > All you can set Catalyst AI for texture filtering quality (Performance/Quality/High Quality) and there’s a tickbox for Surface Format Optimization.

    Is that what you were referring to?

  • 16 Bloody // Oct 31, 2010 at 14:54

    In Catalyst Control Center, under the 3D panel, All you should be able to see a section for Catalyst AI (the third one from the top) with an option called “Disable Catalyst AI” as well as a slider with Standard and Advanced options. You just need to tick the Disable option…

  • 17 Petri Teittinen // Oct 31, 2010 at 15:36

    Funny that… there isn’t a section like that in the Catalyst control panel I have.

  • 18 Zerofool // Nov 1, 2010 at 19:46

    kk, yes, iZ3D has experimental support for mult-GPU systems for some time now, but it is only supported in dx10/11 games. And it really depends on the game. I haven’t seen any report on the iZ3D forum that it works, but it’s good that you found a game where it works (although as far as I know, Metro 2033 is still quite buggy in 3D mode with the iZ3D driver).
    This multi-GPU issue is in the iZ3D driver, not in the AMD Catalyst.

    Petri, Catalyst has been restructured since 10.10, and it seems that AI is entirely removed (at least for HD6000 series cards) as far as I know. I was positioned in “3D->All” tab before..

  • 19 kk // Nov 2, 2010 at 20:57

    Here’s something interesting. Just tried Prince of Persia with iz3d, a DX9 game. And both of the gpus work, same as in a DX10/DX11. If I disable crossfire, then FPS drops to half, second gpu at 0%. So it surely works. In every game I tried so far, crossfire works. I don’t know why, maybe the 5970 is a special case of crossfire.
    And the interference issue is rather in the catalyst driver, because both ddd and iz3d suffer from it.

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