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Old 03-23-07, 07:38 PM   #1
LightKnight
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Join Date: Nov 2006
Posts: 5
Talking Solved: Working modeline for 1366x768 (1360x768) for Samsung LE-32R71B - 32" LCD TV

I just simply couldn't get 1366x768 to work with my brand new TV.

First somebody pointed me to my manual that could tell me that it really was a 1360x768 TV and not 1366x768, as the marketing hype said.

Further, without a modeline it complained that it was an unknown mode, so I found a modeline here in the forums, but with somebody else's modeline, I could see that it was running 1360x768 both with xwininfo -root, but the image wasn't centered in the screen and it looked horrible!

After getting EDID to work (My solution to "Failure reading EDID parameters": New VGA cable), I saw this in the EDID output of startx -- -logverbose 5

Code:
(II) NVIDIA(0): Supported additional Video Mode:
(II) NVIDIA(0): clock: 85.5 MHz   Image Size:  885 x 498 mm
(II) NVIDIA(0): h_active: 1360  h_sync: 1424  h_sync_end 1536 h_blank_end 1792 h_border: 0
(II) NVIDIA(0): v_active: 768  v_sync: 771  v_sync_end 777 v_blanking: 795 v_border: 0
From that I created this modeline (pure guesswork: the numbers were similar to the modeline I had - just a little different):
Code:
Modeline "1360x768" 85.5 1360 1424 1536 1792 768 771 777 795
And that worked!

For some reason, any change I ever make to xorg.conf or XFree86.conf always means hours of work. Why the EDID output can't be used to generate the Modeline automatically is beyond me, but hey, now I have fine 1360x768 working! And I hope you'll have luck in the black art of xorg.conf too!
Attached Files
File Type: zip XF86Config.zip (900 Bytes, 542 views)
File Type: zip XFree86.0.log.zip (6.2 KB, 197 views)
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