Picture twitches across cuts on 1080p freeview

[the-rence]

Is anybody else getting picture twitches across some cuts on BBC HD preview 1080p transmissions? My KDL-EX503 shows what looks like 2 or 3 frames of a slightly wider image before zooming back into normal size pictures on occasional picture cuts. 1080p blu ray images are fine.

[airefc]

My ex503 does this all the time on bbc one hd its flipping annoying

[Testcard · Accepted solution]

Hmm, some less than helpful posts so far. OP, do you have full pixel selected in your panel settings? If so try this: When you selected "full pixel" in your panel settings you probably did this during an interlaced or "i" transmission. To get rid of your picture zooming problem you need to select full pixel during a progressive or "p" transmission. If you turn on the information bar at the top of the screen (the "?" symbol on the remote) whilst watching the BBC HD preview channel  then you'll see if it's 1080i or 1080p. Go into panel settings and select full pixel when it's showing 1080p. At the same time, check that all other panel settings match those that you set when you were watching a 1080i transmission. That way, both 1080i and 1080p settings should be identical and should remove the zooming issue. For information, I have the following panel settings for both interlaced and progressive transmissions:

Screen format: Wide

Auto format: On

4:3 Default: Smart

Display Area: Full Pixel

[petekins]

Testcard & the-rence,

                I also found  the same solution to the zooming problem, with a slight difference.

Setting the Display area to 'Normal' stopped it, leaving it on Full Pixel allowed it to zoom in when going to 1080i then zoom out again when on 1080p. Ok so you lose the egde detail but it's minimal, and hey it cures the prob.

pete

[jokelly95]

You know - I did consider this but thought - nah, sony wouldn't allow you to specify different settings for picture display on the same channel.... Obviously wrong. Thanks for enlightening me. Would this then apply to all the HD channels or just the BBC HD one?

Still think that Sony shouldn't have built it this way but if I can fix it then great.

[Testcard]

Hi

It's only the BBC HD preview channel where the BBC is trialling dynamic switching between 1080i and 1080p. BBC 1 HD is fine, as are all of the other Freeview HD channels. This dynamic switching was causing audio dropout problems earlier this year, but Sony released a firmware upgrade to fix it.

Message was edited by: Testcard

Message was edited by: Testcard

[daporte33]

hi.

Having exactly the same problems on my 46 hx923.Started doing it on only bbc hd channel where the picture would go blank when pictured changed from 1080p and i ,but now im getting it on all hd channels  when the picture changes from 1080p and i the picture zooms in and out,am i right in thinkinhg that other channels are broadcasting in 1080p now as well??..and does any one know a fix,thanks in advance!!!!!!

[Testcard]

Dynamic switching between 1080i and 1080p now seems to have been adopted by all of the broadcasters on the Freeview HD platform. To fix your problem, you'll need to go into Panel Settings. Make a note of the settings you've selected during a 1080i broadcast. Then, when the transmission switches to 1080p, check yout Panel Settings again. Ensure that your settings are the same as you selected during 1080i - if not adjust them to match. The problem is that your set is seeing 1080i and 1080p as two different inputs, rather than a single input that is switching between 1080i and 1080p.

[the-rence]

Thanks testcard - will look into this. I've noticed all hd channels are now transmitting 1080p at tiimes so the problem is becoming more widespread. My Bravia will actually display this 2 frame zoom/twitch across joins within a 1080p transmission and not just when the transmission is switching between i and p. Amy thoughts on that one?

[Testcard]

That's interesting. I don't have any picture twitching or zooming now that the panel settings match for both 1080i and 1080p on my Bravia. Let us know if your problem is resolved by adjusting settings on your panel. And yes, looks like dynamic switching is the future!

[dhorton]

Hello everyone

I have a different problem on my 46HX923.

When the switch from 1080p to 1080i or vice versa occurs there is a brief black screen like a camera shutter coming down.

The settings are the same for both inputs, ie full pixel.

It is happening on all freeview HD channels.

Is there a setting I am missing or is there a problem that needs a firmware update