Passive FPR 3D ghosting problems in Interlace and Checkerboard - Page 3

Hi,
So are you saying that you have working interleaved over hdmi without a modified edid now?

So mrhopefull is correct, he has no colorbug but then he allso does'nt have a hdmi 1.4 3dtv, we actually delete the 1.4 info so its no suprise he has interleaved working, he cant test cb as the ld920 does'nt support it.
I'm gratefull to mrhopefull for his time and effort, his findings have helped me to piece together another part of this story.

your extension block is different now?

yours
Extension blocs.......... 1 (Reserved - 0x00)

Mine
Extension blocs.......... 1 (CEA-EXT)

Still have the colorbug with your new edid sadly.

So if your interlaced is now working without deleting the extension bloc then surely that means your new lg firmware has fixed the issue, if so then i'd love to see a new firmware for ld950 but i dougbt it very much.

can't find a manual to the ld920, this was never meant tobe released to the public as it was a sky3dtv for pubs so maybe there is no online manual ?

Just ried the ld920 edid that has no 1.4 3d info in it and bugger me it still has the colorbug, so i dno now, i think i'll leave this for awhile as i'm totally out of answers, i have o/u sbs and interleaved working, incidently i'll only be using interleaved for my games now.
You give me hopes as i would like to upgrade to a new 2011/12 lg passive knowing that there will be no colorbugs, so its all about the lg firmware then, hmmm.

Mr hopefull uploaded a working interlaced pic through his glasses on a lg920 passive which is'nt hdmi 1.4 and he used no modified edid and used hdmi , did'nt know if you wanted to add the pic to start of thread so i've included it just incase.


Edit

Damn thats a small pic, original one is at avforums, you know the place .

In relation to what tv settings i'm using.

Have tried different hdmi ports, presets, options, input naming ect, been there and brought the shirt type of thing, just tested all the settings i can think of with the ld920 edid but alas it's still a fail.

Skyguy3d, do you know anybody with a passive 3dtv that has working interleaved/cb?

I've not had any confirmation of anybody on the lg passive side that has working checkerboard, heck i only know of maybe 4 forum threads on the net with the problem, so thats 3 or 4 people that have documented the bug that i know of, is there people out there with these sets that are using interleaved/cb with no bug what so ever?
I just do'nt know!

These are things that play on my mind alot. If i have a problem with things it's not usually hard to fix, you can buy a spare part, you can take someting to a mates and try it at theirs, you can usually test things,what would happen if i put my pc into mrhopeful's lg 3dtv, would i allso have working interleaved 3d with the edid the ld920 provides or would i still have the color bug.
It's so perplexing that it hurts lol?

i could'nt see lg fixing the ld950 if it does infact need fixing, its a old model now and from what i know it only ever had 1 firmware update and that was last year i think or early this year, i think there's no lg love coming my way.

If i could prove beyond a shadow of a dougbt that the ld950 does have a color bug then maybe i could get a refund as it would'nt be fit for it's purpose, i have around 6-7 months before my set is 12 month old.

What i DO know is that the ld950 manual states that it does'nt support 3d using a pc even though it states that all 3d options are available to use over dvi-hdmi, that's just strange and contradicting.
I believe this is where i do'nt have a leg to stand on when i ask for a full refund, lg will just say it does'nt play 3d using a pc and tell me to go away.
Allso given the fact that i have fixed my interleaved over hdmi i can't say for sure wether or not it's user error and if i had a correct setting cb would work allso.
Like i said for solid proof i'd need somebody with a working lg passive that allso know's somebody with a none working lg passive so they could swap pc's between the displays ect and see what happens.
Or
We need a external/stand alone 3dblu-ray player that can output specific 3d, so then we'd just choose cb and see if it played correctly and if it did then we know its our pc's at fauly maybe and if it did'nt then that would maybe proove that these sets are messed up.

i did try this on a samsung player that i got with a samsung 3dtv, on the sammy it outputed checkerboard, i know this cos when i used pc for 3d blu-ray i'd have to manually select checkerboard on the tv remote, the 3d picture in 2d had same effects as cb.
When i used 3d blu-ray player on the lg it outputted frequency, page flipping instead, lol bugger me!
So that proved nothing to me at all
So same blu-ray player, same pc that worked with cb on a sammy does'nt with the lg.

Does anyone have a link to a LG spec that states that any LG model will accept the Checkerboard format IAW the checkerboard 3D video tranmission spec as specified by TI?
I have seen references to some LGmodels having a totally differenct lower resolution B&W checkerboard format built into some of their models for use in calibrating the sets contrast seting.

I've just sent a messege to inition, i used thier homepage email address to forward my email to, does anybody know a better email for inition?
From what i read Shannon from inition was liasing with lg techs on the 3dbluray bug with the ld950, this resulted in a firmware update that fixed the isssue so maybe they can help spread the word where it needs tobe spread.

so we do have many many users with the problem, i do wonder if its all users?

Have some new news, inition have replied and stated they has sent the details off to the correct people within lg, they are well known and should have some leverage in there words!

Allso i have just found out that i have made a vital mistake in the ld920 testing that mr hopeful did for us.
i sent him a over under picture which he then converted into over under by way of the 3dtv 3d options, this makes are colorbug test viod for the ld920, i have politely asked him to retake a picture with a interleaved picture instead, hopefully he will do this for us but i have asked alot of him since yesterday so i will report back soon.


....

Mrhopeful has replied and included a working interlaced image over hdmi on his ld920, this is the only person that has confirmed interlaced working with no colorbug, let me just piont out that the ld920 is a hdmi 1.3 spec, all problems may only be with the hdmi 1.4 spec.

Skyguy,
Thanks for the manual link it certainly states that the set will accept 3D 1080p/60 checkerboard format over HDMI.

Shannon Has contacted me again today stating she is in talks with the 3d cinema team about these issues.
I'm sure it's a firmware error anyway as skyguy states with a new firmware his interlaced works without the edid fix.

That is correct is'nt it skyguy?

Hey skyguy, I had a read over your passive setup guide and it's very useful, good work.

One thing I noted is that your settings to reduce ghosting involved high contrast and lower brightness, so would I be correct in assuming that you lose some detail in dark scenes? Or does the increased backlight help to bring some of that detail back?

Cheers

Wish i knew how to 3D_Ext_Data .
I'm still rubbing my hands in anticipation of lg's findings, i sure hope they Do plug a pc in and try cb.

Hi,
I use aa when i can, latest game i'm playing is dirt3, i use interleaved and aa with no problems, one thing i have noticed wether i have aa on or off is that sbs looks alot better than interleaved, there is a big difference in 3d quality between the 2, i'd have to say sbs looks better on my ld950 as interleaved seems to create a tiny bit of something that looks like alaisin, even 32x aa can't get rid of this, but 8xaa for sbs mode looks very sharp with no visable alaising.

Some games work ok for me with aa and some do'nt, i can 100% say though that aa does'nt affect my interleaved image in a negative way at all.

Edit,

Tridef had a bug in its sbs for dirt3 so if i wanted to use sbs i'd have to use iz3d, tridef have now fixed the bug so i could test dirt3 again, what i found was iz3d has a nice crisp sbs image where as tridef does'nt

That done the trick, going to try the other tridef interleaved 3d now.
Iz3d looked a hell of alot smoother with the optimized interleaved, normal interleaved gave what looks like horizontal alaising

.
ta

This might be completely the wrong place to ask for help with this, but I'm struggling somewhat to find an answer to my problem so hoping someone here might have similar experiences and advice on how to rectify.

I have recently purchased an LG 42LW450U Cinema3d (passive) HDTV and coupled with with my ATI HD6950 via a HDMI 1.4a cable. HDMI is connected to HDMI1, and the port is labelled as PC to reduce lag. It should be noted that in this mode, only 16:9 and 14:3 aspect options are available. For the record it should also be assumed that this is where the primary testing has taken place, although switching the label to Game and enabling "just scan" as the aspect setting has also been done for all tests just to isolate the issue, with little or no effect)

I've been running tests with both iZ3d and DDD Tridef for various 3d games.

All resolution tests are running at 1080p60, and 1080p24 (which this TV can natively support).

What I've found is that with iZ3d interleaved mode works fine, although with some ghosting. Tridef works with interleaving if set to reverse, but also with ghosting. The amount seems to change dependent on the title or tests involved. Overall Tridef does seem to have a slight advantage, at least in terms of out-of-the-box ease of use and overall quality.

I can't get iZ3d to work with AMD's HD3D, though I haven't tried extensively with it yet, however I have got it working with Tridef's drivers.

Now to the root of the problem:

Running AMD's HD3D switches the output to 1080p24. At this point, the Catalyst drivers are underscanning by approx 10% around the screen, giving ugly black borders and reduced screen size. Catalyst options DO allow for under/overscan compensation, but only for "standard" HDTV modes.

There are a number of "Optimized" HDTV modes present which are also labeled, for example, 1080p24, but which appear to be slightly reduced resolutions, which whilst I can select in the Catalyst CC, I can't modify; any options to do so are greyed out.

I believe this is the cause of my problem, that when the set switches to 1080p24 in 3d over HDMI1.4a the output is forcing to this "optimized" resolution which is severely underscanned.

Can anyone suggest how I might override this somehow?