MBP + External Plasma Problem

[RickHunter]

Recently, my mum bought a 50" Samsung Q9 Plasma TV and I was eager to bring my MBP to her house to test it (will get one in future if everything works the way I want). However I've found that the auto-detection from OSX does not exactly match the resolution from the Samsung TV.

OSX believes the native resolution of the TV is 1360 x 760 (or something similar) while the actualy resolution of the TV is 1366 x 768. Although only off by a little bit, theres a bit of flashing extra spaces of colored lines on the bottom edge and the right edge, which is very annoying when watching movies etc. Setting the resolution of the TV to anything else works fine without those annoying extra lines/spaces (like 1024 x 768 or 1920 x 1024), however does not look as good.

Anyone got a way to fix this? Something to tweak the resolution a bit manually, thanks.

 

[KingYaba]

My TV does not show the full resolution. The menu bar is cut off and part of the dock is missing when using the TV as an external monitor.

 

[Trepex]

My TV does not show the full resolution. The menu bar is cut off and part of the dock is missing when using the TV as an external monitor.

So start a separate thread... Your issue has to do with overscanning and in a lot of cases you can't do anything. Samsungs allow you to turn of overscan, and other TVs disable it by default on VGA and DVI inputs.

 

[Trepex]

Recently, my mum bought a 50" Samsung Q9 Plasma TV and I was eager to bring my MBP to her house to test it (will get one in future if everything works the way I want). However I've found that the auto-detection from OSX does not exactly match the resolution from the Samsung TV.

OSX believes the native resolution of the TV is 1360 x 760 (or something similar) while the actualy resolution of the TV is 1366 x 768. Although only off by a little bit, theres a bit of flashing extra spaces of colored lines on the bottom edge and the right edge, which is very annoying when watching movies etc. Setting the resolution of the TV to anything else works fine without those annoying extra lines/spaces (like 1024 x 768 or 1920 x 1024), however does not look as good.

Anyone got a way to fix this? Something to tweak the resolution a bit manually, thanks.

Which input are you using on the TV???

 

[RickHunter]

Which input are you using on the TV???

I'm using the HDMI2 input, whereby you can also plug in rca sound from the macbook pro.

I've found some stuff on pixel mapping, but it's for windows XP

And yea, my problem has nothing to do with overscanning, it's to do with OSX recognizing the resolution on my tv wrongly or vice versa and I need a way to manually set the resolution instead of OSX giving me a choice of the wrong ones that makes the tv ugly on the bottom/right.

 

[RickHunter]

I'm using the HDMI2 input, whereby you can also plug in rca sound from the macbook pro.

I've found some stuff on pixel mapping, but it's for windows XP
http://pixelmapping.wikispaces.com/Guide+to+1366x768


And yea, my problem has nothing to do with overscanning, it's to do with OSX recognizing the resolution on my tv wrongly or vice versa and I need a way to manually set the resolution instead of OSX giving me a choice of the wrong ones that makes the tv ugly on the bottom/right.

ps. sorry for double post, quoted myself accidentally instead of editing.

 

[Trepex]

Well there might well be a firmware update for the TV. My Sammy LNT4061F has a USB port on the back for firmware updates. Any chance yours does as well? Stuff like this has been known to happen in the past so it's entirely possible that Samsung might have an update for your set...

 

[ftaok]

I think the OS X Display System Pref has a button that will show you more resolutions. By default, it only shows resolutions that are supported (as reported by the display's EDID profile). If you uncheck one of those settings, it opens up a bunch of other resolutions.

CAUTION - be very careful if you use an unsupported resolution. It could mess things up.

Alternatively, can your MBP output 720p (as in 1280x720)? That's a fully supported format for the Sammy. I'm not sure if the Sammy is really expecting 1366x768 or 1360x768, hence funny stuff going on.

ft