White Lines at top of screen - Page 4 - Canadian TV, Computing and Home Theatre Forums

Maginnis1951 · 2005-07-08, 01:05 PM

Quote:

Originally Posted by 57

I'm probably about 2.5%. That's why I recommend to people not to go lower than 3%. I saw these lines on 4:3 upconverted programming on ABC when I lowered my overscan from the 5-6% it was originally, but since I rarely watch upconverted HD and I hadn't see it on any other channels, I left it as is.

I have not see the stuff on the sides though.

Panasonic finally came back to me and said that the overscan was 2%. When I complained that it was too low, they said, quote "Our technical staff has advised that due to the nature of the scan and display it is not possible to change the over scan."

57 · 2005-07-08, 02:34 PM

I've noticed it recently on some other HD channels when 4:3 material was up (I rarely watch them with 4:3) If I were at 3%, I think it'd be OK.

Does your TV have a setting for raising or lowering the image a bit. A lot of TVs have that, and if you raised it a couple of pixels, the problem might go away.

Maginnis1951 · 2005-07-08, 04:05 PM

Unfortunately, that is not one of the settings on my TV that you can adjust. I'll just have to live with it by a) not watching HD stations when the program is not in HD and b) using the auto stretch through HDMI to watch non-HD stations.

TyTimp · 2005-07-11, 02:08 PM

I get the white lines as well. I was going to get a technician to adjust the overscan, but reading through the posts I believe it is the nature of the Panasonic tv's. I had this problem on 2 42PD50U's and now on my current 42PX50U. When I had the PD50, I had it set up right next to an LG plasma and the LG had far more overscan, plus on the LG you could shift the picture location.
I tested about 4 different cable boxes from rogers. They all produced the same results. I was ,and am, using an HDMI cable. Component cables fixed the problem for the most part but the white lines at the top of the screen would still show from time to time but not nearly as much as the HDMI connection.
BTW, these white lines at the top of the screen only appear on HD channels watching SD content in the 4:3 or stretch modes where the top the the screen does not get cut off. HD content is perfect but the white lines will show during 4:3 commercials and some non HD programing. For me, NBS is probably the worst channel for this.

I think this is something we have to live with with the Panasonic tv's. I hope they build in more overscan for later tv's.

Maginnis1951 · 2005-07-11, 02:13 PM

Seems like it. I love the picture on the TH42PX50, but those lines kind of drive me up the wall. But, if we can't change it...
You said that the component connection seemed to correct this. Why did you go back to HDMI? I'm using HDMI as well, and I'm not sure if the "auto stretch" feature would work properly on the component cables.

TyTimp · 2005-07-11, 03:17 PM

Quote:

Originally Posted by Maginnis1951

You said that the component connection seemed to correct this. Why did you go back to HDMI?

Component didn't correct it 100% but it happed far less than HDMI. I still use HDMI because I find it adds more detail to peoples faces. I never liked the way faces looked washed out on the Panasonics and the HDMI helps.
Plus, I use the zoom ratio when watching SD content so that alone gets rid of the white lines. The PQ is too good on the Panasonic to switch to another brand that doesn't have this problem. It's a trade off I'm willing to accept.

57 · 2006-02-10, 03:36 PM

Quote:

Originally Posted by Maginnis1951

I'll see what I can do with the HDMI cable, but, that was probably my mistake. If you go to www.scanline.ca/overscan you also see that crap at the side of the Weather Network.

Sorry to "wake" this old thread, but when doing some experimenting, I found I could duplicate the "crap" on the right side of the weather channel.

The way I did this was to disable 480i/p STANDARD in the setup wizard. This forced the SD channels into 1080i and I got the "crap". I enabled 480i/P STANDARD again and enabled passthrough or upconvert1 and I got rid of the "crap". Hope that helps someone.

Maginnis1951 · 2006-02-13, 03:43 PM

Quote:

Originally Posted by 57

I enabled 480i/P STANDARD again and enabled passthrough or upconvert1 and I got rid of the "crap".

Thanks 57, but with the HDMI cable, you need to enable the HDMI/DVI option. If it was hooked up with component cable, then I could use passthrough or upconvert.

57 · 2006-02-13, 03:56 PM

I believe you missed the point main point. If you enable 480i/P standard, the issue may go away. Passthrough = auto HDMI, but I believe you have to go back into the settings (set picture format) and enable auto-HDMI after you do the setup wizard.

If you already have 480i/P STANDARD enabled, then disable 480i/P Widescreen. (each time you'll need to go back into the settings and enable auto-HDMI. If that doesn't work, then I'm stumped.

Maginnis1951 · 2006-02-13, 04:00 PM

I've had 480i/P Standard, as well as widescreen, enabled from day one. By using the auto-HDMI, it stretches the picture, so I don't get the white lines on non-HD channels - like the Weather Channel - anymore. I still see white lines at the top of an HD channel when it is not broadcasting in HD. If I really want to watch that channel, I'll stretch the picture again.

57 · 2006-02-13, 04:01 PM

I guess I'm stumped then. Try going into settings - set picture format...auto-HDMI?

2005-07-08, 02:34 PM	#47
57 Moderator Join Date: May 2002 Location: Toronto, Rogers, 8300HD, eHDD, Panasonic TCP65S1, Denon AVR4310Ci; 8300HD, eHDD & Sony KDL40W3000 Posts: 50,298	I've noticed it recently on some other HD channels when 4:3 material was up (I rarely watch them with 4:3) If I were at 3%, I think it'd be OK. Does your TV have a setting for raising or lowering the image a bit. A lot of TVs have that, and if you raised it a couple of pixels, the problem might go away. __________________ 57's Home Theatre (Latest equipment & photos) 57's Optimization Services (Home Theatre Optimization)

2005-07-11, 02:08 PM	#49
TyTimp Join Date: Jul 2005 Location: Kingston Posts: 10	White Lines I get the white lines as well. I was going to get a technician to adjust the overscan, but reading through the posts I believe it is the nature of the Panasonic tv's. I had this problem on 2 42PD50U's and now on my current 42PX50U. When I had the PD50, I had it set up right next to an LG plasma and the LG had far more overscan, plus on the LG you could shift the picture location. I tested about 4 different cable boxes from rogers. They all produced the same results. I was ,and am, using an HDMI cable. Component cables fixed the problem for the most part but the white lines at the top of the screen would still show from time to time but not nearly as much as the HDMI connection. BTW, these white lines at the top of the screen only appear on HD channels watching SD content in the 4:3 or stretch modes where the top the the screen does not get cut off. HD content is perfect but the white lines will show during 4:3 commercials and some non HD programing. For me, NBS is probably the worst channel for this. I think this is something we have to live with with the Panasonic tv's. I hope they build in more overscan for later tv's. Last edited by TyTimp; 2005-07-11 at 02:18 PM.

2006-02-13, 03:56 PM	#54
57 Moderator Join Date: May 2002 Location: Toronto, Rogers, 8300HD, eHDD, Panasonic TCP65S1, Denon AVR4310Ci; 8300HD, eHDD & Sony KDL40W3000 Posts: 50,298	I believe you missed the point main point. If you enable 480i/P standard, the issue may go away. Passthrough = auto HDMI, but I believe you have to go back into the settings (set picture format) and enable auto-HDMI after you do the setup wizard. If you already have 480i/P STANDARD enabled, then disable 480i/P Widescreen. (each time you'll need to go back into the settings and enable auto-HDMI. If that doesn't work, then I'm stumped. __________________ 57's Home Theatre (Latest equipment & photos) 57's Optimization Services (Home Theatre Optimization)

2006-02-13, 04:01 PM	#56
57 Moderator Join Date: May 2002 Location: Toronto, Rogers, 8300HD, eHDD, Panasonic TCP65S1, Denon AVR4310Ci; 8300HD, eHDD & Sony KDL40W3000 Posts: 50,298	I guess I'm stumped then. Try going into settings - set picture format...auto-HDMI? __________________ 57's Home Theatre (Latest equipment & photos) 57's Optimization Services (Home Theatre Optimization)

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2005-07-08, 04:05 PM	#48
Maginnis1951 Join Date: May 2005 Location: Mississauga, Panasonic TH42PX50; Rogers 8300HD PVR; Panasonic S42 DVD; JVC 6010 Receiver Posts: 111	Unfortunately, that is not one of the settings on my TV that you can adjust. I'll just have to live with it by a) not watching HD stations when the program is not in HD and b) using the auto stretch through HDMI to watch non-HD stations.

2005-07-11, 02:13 PM	#50
Maginnis1951 Join Date: May 2005 Location: Mississauga, Panasonic TH42PX50; Rogers 8300HD PVR; Panasonic S42 DVD; JVC 6010 Receiver Posts: 111	Seems like it. I love the picture on the TH42PX50, but those lines kind of drive me up the wall. But, if we can't change it... You said that the component connection seemed to correct this. Why did you go back to HDMI? I'm using HDMI as well, and I'm not sure if the "auto stretch" feature would work properly on the component cables.

2006-02-13, 04:00 PM	#55
Maginnis1951 Join Date: May 2005 Location: Mississauga, Panasonic TH42PX50; Rogers 8300HD PVR; Panasonic S42 DVD; JVC 6010 Receiver Posts: 111	I've had 480i/P Standard, as well as widescreen, enabled from day one. By using the auto-HDMI, it stretches the picture, so I don't get the white lines on non-HD channels - like the Weather Channel - anymore. I still see white lines at the top of an HD channel when it is not broadcasting in HD. If I really want to watch that channel, I'll stretch the picture again.