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Macbook to Panasonic TX-32LXD60 HELP!

post #1 of 4
Thread Starter 
Hi Guys,

I'm having a little trouble setting up my MacBook to work with my Panasonic TX-32LXD60. I have bought a Mini-DVI to DVI adapter, and a DVI to HDMI lead. When I connect it, it displays at 1280x720 50Hz. However the top half of the display is flickering like mad, if I select 1280x720 60Hz the bottom half flickers like mad. I have tried using SwitchResX to no avail, have tried what was suggested in the tutorial but no such luck. I have tried other resolutions such as the native 1366x768, but it still flickers.

Here is a DDC dump of the TV if it helps!

DDC block report generated by SwitchResX for display
PANASONIC-TV (1)

0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------
0 | 00 FF FF FF FF FF FF 00 34 A9 11 C1 D4 03 00 00
1 | 29 10 01 03 80 00 00 78 0A DA FF A3 58 4A A2 29
2 | 17 49 4B 00 00 00 01 01 01 01 01 01 01 01 01 01
3 | 01 01 01 01 01 01 01 1D 00 BC 52 D0 1E 20 B8 28
4 | 55 40 B9 88 21 00 00 1E 01 1D 80 D0 72 1C 16 20
5 | 10 2C 25 80 B9 88 21 00 00 9E 00 00 00 FC 00 50
6 | 41 4E 41 53 4F 4E 49 43 2D 54 56 20 00 00 00 FD
7 | 00 30 3D 0F 2D 08 00 0A 20 20 20 20 20 20 01 53

-----------------------------------------------------
Valid DDC block: checksum passed

EDID Version........1.3
Manufacturer........MEI
Product Code........4545 (11C1) (C111)
Serial Number.......980

Manufactured........Week 41 of year 2006
Max H Size..........0 cm
Max V Size..........0 cm
Gamma...............2.20

DPMS Supported Features:
------------------------


Display type:
-------------
RGB color display


Input signal & sync:
--------------------
Digital

Color info:
------------
Red x = 0.640 Green x = 0.291 Blue x = 0.163 White x = 0.288
Red y = 0.345 Green y = 0.635 Blue y = 0.093 White y = 0.296

Established Timings:
--------------------

Manufacturer Reserved Timings:
------------------------------

Standard Timing Identification:
-------------------------------

Monitor Description blocks:
---------------------------
Descriptor #0 is Timing definition:
Mode = 1280 x 720 @ 50Hz
Pixel Clock.............74.25 MHz Non-Interlaced

Horizontal Vertical
Active..................1280 pixels 720 lines
Front Porch............. 440 pixels 5 lines
Sync Width.............. 40 pixels 5 lines
Back Porch.............. 220 pixels 20 lines
Blanking................ 700 pixels 30 lines
Total...................1980 pixels 750 lines
Scan Rate............... 37.50 kHz 50.00 Hz

Image Size.............. 697 mm 392 mm
Border.................. 0 pixels 0 lines

Sync: Digital separate with
* Positive vertical polarity
* Positive horizontal polarity

Descriptor #1 is Timing definition:
Mode = 1920 x 540 @ 50Hz
Pixel Clock.............74.25 MHz Interlaced

Horizontal Vertical
Active..................1920 pixels 540 lines
Front Porch............. 528 pixels 2 lines
Sync Width.............. 44 pixels 5 lines
Back Porch.............. 148 pixels 15 lines
Blanking................ 720 pixels 22 lines
Total...................2640 pixels 562 lines
Scan Rate............... 28.12 kHz 50.04 Hz

Image Size.............. 697 mm 392 mm
Border.................. 0 pixels 0 lines

Sync: Digital separate with
* Positive vertical polarity
* Positive horizontal polarity

Descriptor #2 is Monitor name:
PANASONIC-TV
Descriptor #3 is Monitor limits:
Horizontal frequency range.......15-45 kHz
Vertical frequency range.........48-61 Hz
Maximum bandwidth unspecified

Please Help!

Many Thanks
Lee
post #2 of 4
I'm not familiar with that display. Does it have VGA or other connection options you can try?
post #3 of 4
Thread Starter 
Nope. It has a component connection and 2 HDMI connections.
post #4 of 4
I don't know if it will do any good, but you might try using SRX to build a custom 1280 x 720 timing using the Generalized Timing Formula calculator that is built into SRX. Start up a new custom resolution and enter 1280 and 720 for Horizontal and Vertical active respectively and then click on "Use simplified settings:" and in the associated pop-up select GTF. Make sure the vertical scan rate is 50 Hz. If it isn't, type 50 into that box. H and V sync should have check marks in the boxes for positive. Save the timing and restart and then try it.

I don't know if that will work or not. I do notice that the horizontal front porch times in Descriptor #0 and #1 of the DDC data are inordinately long, which is unusual. But I have a hard time understanding how that would cause the top or bottom half of a screen to flicker, so the affect of the long H front porch is hard to relate to my proposal for a fix. Still, you might as well try. Good luck.
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