1080i playback issue after 1.80 update

[Greenmatiz2]

Note: This may have nothing to do with the update... just an observation to throw out there. The point is, I'm not sure, so I want to see what you guys with similar set-ups thing. I didn't notice this problem until after the 1.80 update, so that's why I'm even considering it to be the possible culprit:

It is most likely due to either my PS3 or my TV's HDMI connection.

I am viewing PS3 content via HDMI into a 50" 1080i LG XCanvas PDP set. The problem is that the footage (whether game or movie) "jumps" a line or two every several seconds. From a distance, this isn't easily noticed. Up close, it is, however. My PS3 didn't do this on my previous 1080p LCD set. It could be the set, but I didn't notice this problem until after the update, so it's hard for me to know what caused it.

It might be the TV... it might be my PS3 having troubles with 1080i output (bad part inside) or the update... interference... I have no idea!

It doesn't appear to happen at all when watching TV footage at either HD or SD.

Here is a video of the problem. Focus on a thin line, like in the boot, and look for the lines jumping randomly every several seconds. It's very hard to see with crappy Google video quality. Shrink the window size down to see it smaller, for a better view:

http://video.google.com/googleplayer...14107090&hl=en

[dgator783]

i would guess its more likely something is wrong with ur set ifg I had to guess

[Filterlab]

Now I watched 'Withnail & I' on DVD after I updated and I noticed slight movement like this on very still images. However, that's quite an old film has only recently been transfered to DVD.

Afterwards I watched 'V for Vendetta' and 'Munich' and they both played absolutely superbly (especially Munich) so it may just be part of the upscaling process for certain films.

All in all I'm very pleased with 1.8 but there's always going to be little foibles with all technology somewhere.

Does it occur with all your games and films or just some?

[Greenmatiz2]

Seems to happen with all games and HD movies... have to look at an SD DVD to see if it is a problem there.

[Greenmatiz2]

Ok, maybe this is all due to my misunderstanding of my TV and it's capability.

My TV accepts and displays 1080i input (at least that's what it says on the screen) but the resolution of my TV is 1366x768, according to the brochure. It seems I can watch 1080i HDTV signals with no problem, and it says it's displaying them in 1080i.

I changed my PS3 output to 720p, and there is no longer a flicker problem on either the PS3 menus or the BR disks. I also seem to have more white shadow effects behind the menus in 720p, if that means anything to anyone.

Some games, like rub-a-dub, look worse in the 720p output (more jaggies) than when I have it in 1080i output. Is this the PS3 not handling the downconverting well? If I go into 1080i, the game looks better, but I still have the very light flickering around the edges, as evidenced in the video above. It's impossible to see more than a few feet away (unless it grows worse in the future).

Anyway, I guess I'll just leave my PS3 in 720p most of the time, and toggle to 1080i for some games to see if they perform better.

Maybe my TV does not perform 1080i very well, or the PS3 I have is outputting bad 1080i signals to make those jumps?

Odd.

[jorg]

i would assume its actruly the scaller in your tv or a componet in your tv. or maybe a setting on your ps3?

[Greenmatiz2]

Well, I looked again, and rub-a-dub is almost identical at 720p or 1080i. Very close. Maybe when I'm not moving, the ducks have slightly better interlacing at 1080i, but that's it.

[Greenmatiz2]

Well, HD 1080i broadcast TV looks perfect... no jumping whatsoever.

The PS3 is outputting the 1080i signal to the TV, which accepts it at 1080i. I am wondering if perhaps it's the PS3 then? Maybe I have a problem unit?

It does work fine at 720p.

Wow, I looked very, very closely at the differences in 1080i and 720p while watching Casino Royale. I can definitely see a slight difference when I look at things like the tiny numbers in the upper-right corner of Bond's phone when he's in the hotel video surveillance room.

Also in the fine details of the clouds of the Earth shots from space on Planet Earth.

[Shin-Ra]

The game stair-step jagginess would usually be more apparent at 720p compared to 1080i downscaled and deinterlaced to 768p because you're getting lower resolution aliasing - bigger jaggies. Just like aliasing is larger on the same screen size in a low res PSone game compared to a PS2 game.

When there isn't aliasing in the source to begin with (like a well transferred BD-movie or DVD), downscaling and deinterlacing from 1080i to 768p (depending on the tv) can actually introduce aliasing. The tv may not eliminate all interlace combing too.

I don't think most 1366x768 displays are designed to downscale 1080i content perfectly, they just support 1080i so that pretty much all HD outputting devices are supported. As you say you're probably better off with 720p most of the time.

[The Don]

Originally Posted by Greenmatiz2

Well, HD 1080i broadcast TV looks perfect... no jumping whatsoever.

The PS3 is outputting the 1080i signal to the TV, which accepts it at 1080i. I am wondering if perhaps it's the PS3 then? Maybe I have a problem unit?

It does work fine at 720p.

Wow, I looked very, very closely at the differences in 1080i and 720p while watching Casino Royale. I can definitely see a slight difference when I look at things like the tiny numbers in the upper-right corner of Bond's phone when he's in the hotel video surveillance room.

Also in the fine details of the clouds of the Earth shots from space on Planet Earth.

which one appeared better?...

[Deciazulado]

Well now that the PS3 has 720 conversion, what you do is choose which is better, the PS3's 1080 to 720 downconversion (plus one more upconversion to 768 in your case) or your TVs 1080 to 720 (or maybe directly to 768?) downconversion. Remember that there' are various methods to deinterlace, and your TV will use one or two and maybe one of them is bobbing the 1080i PS3 output, and that there are 1080 24p programs and 1080 60i programs. (and the 9" nails 30p into 60i program too!) And those might be handled differently.. About the TV broadcast signals, one thing I've mentioned before is that 1080i broadcast are just that, 1080i, and if they had 1080p sharpness encoded on them with the lines just split into i, that kind of signal going onto a true 1080i display, like a 1080i CRT, would twitter like crazy in many shots, so there's always the possibility that things encoded for 1080i broadcast are not as vertically sharp as a true 1080p image. (And if a TV bobs a vertically softened signal, there's not much difference, because both correctly deinterlaced and bobbed vertically soft signals would have around 600 vertical lines of true resolution) Same thing happens with many DVDs, to prevent mmm .. JoeyHexaPacks thinking things like... That DVD looks horrible. Look at all the antialiasing and jaggies on that DVD on my TV!

Maybe Greenmatiz2 could find some good use from the HQV test Blu-ray and see how all those interlaced cadences do on his TV with the different 720/1080 output settings.

Now one thing is for sure, Greenmatiz2. Your PDP isn't a 1080i Display, it's a 768p display max, if it only has 768 x 1366 pixels.