New Sony Bravias and VGA connectivity

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openmedia

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#28277 24-Nov-2008 22:07

Been having a play with a KDL-40W4500 that someone has a problem using with their laptop.

Laptop only has VGA and the TV is refusing to sync at anything other than 1024x768 over VGA.

I've checked the manual and it states it should handle 1280x720 and a bunch of other resolutions but none of them work from their laptop. Next time i'm over I'll try out my own Macbook over VGA and HDMI but for the moment i'm a little puzzled.

Their laptop is running Vista SP1 and has an integrated NVidia G72 GPU. None of the tools under Vista seem to pick up the correct EDID data from the TV.

I did try booting a live Linux distribution and using "startx -- -logverbose 6" to pull up the EDID information which I've included below

(II) VESA(0): Monitor name: SONY TV
(II) VESA(0): EDID (in hex):
(II) VESA(0):   00ffffffffffff004dd900ff01010101
(II) VESA(0):   1412010308a05a780a0dc9a057479827
(II) VESA(0):   12484c21080081800101010101010101
(II) VESA(0):   010101010101662150b051001b304070
(II) VESA(0):   360040846300001e0e1f008051001e30
(II) VESA(0):   4080370040846300001c000000fd0039
(II) VESA(0):   3f1e3109000a202020202020000000fc
(II) VESA(0):   00534f4e592054560a2020202020005a
(II) VESA(0): Using EDID range info for horizontal sync
(II) VESA(0): Using EDID range info for vertical refresh
(II) VESA(0): Printing DDC gathered Modelines:
(II) VESA(0): Modeline "800x600"   40.00 800 840 968 1056 600 601 605 628 +hsync +vsync
(II) VESA(0): Modeline "640x480"   25.20 640 656 752 800 480 490 492 525 -hsync -vsync
(II) VESA(0): Modeline "1024x768"   65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
(II) VESA(0): Modeline "1280x1024" 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync
(II) VESA(0): Modeline "1360x768"   85.50 1360 1424 1536 1792 768 771 777 795 +hsync +vsync
(II) VESA(0): Modeline "1280x768"   79.50 1280 1344 1472 1664 768 771 778 798 +hsync -vsync

The TV reports it can handle 1280x768 and 1360x768 but none of these modes will work over VGA.

So has anyone managed to run a recent bravia over VGA at a decent resolution such as 1360x768, or better yet at true 1920x1080.

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

eXDee

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#180251 25-Nov-2008 17:48

I have the KDL-32W4500, and i'm pretty sure 1280x800 from a laptop running vista sp1 works fine over VGA, though i get thin black bars either side of the image.
Will try 1080p over hdmi/vga if i get the chance.

I'm interested in grabbing the EDID data for the other sony KLV-40D300A when connected via HDMI, to find the possible modes. If i just grab any linux disto, boot to command line and run that command will it display the modes, or is it logged to a file somewhere?

openmedia

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#180311 25-Nov-2008 21:41

Get a recent linux distro like Ubuntu or fedora and boot it off CD in single user or recovery mode.

Then run "start -- -logverbose 6"

The "--" is important.

A log file /var/log/Xorg.0.log will be created that contains all of the EDID data.

I'm sure there are windows tools that can also do this.

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

siyuan

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#180370 26-Nov-2008 10:02

I have a 46W4000, but I've never tried VGA input. But if I remembered correctly, my TV can only accept up to 1600x1200 over VGA. It however worked perfectly fine at 1920x1080 over HDMI with my laptop (Dell XPS M1330, Arch Linux), though I have to set it to Full Pixel mode in order to get 1:1 pixel mapping. If you are interested in the EDID of my TV, I'm happy to provide it.

chiefie

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#180396 26-Nov-2008 11:03

Interesting... I do like to get the EDID For both my Sony rear projection full HD tv for when using VGA connection, and Philips' LCD TV over HDMI...

But I'm not that skilled for linux :-(

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siyuan

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#180425 26-Nov-2008 13:45

I'm sure you can find tools to dump EDID in Windows as well, just google "Windows dump EDID".