LCD TV "mis-syncs" with video card (1 Viewer)

[Kiwi]

Hi
I have an LCD TV hooked up to Media portal via VGA. VGA resolution is set to 1360x768. Graphics card is MSI 6600GT, driver 93.71.

About 1/2 the time I turn the TV on, it thinks the resolution is 1024x768 and displays a black band down the right hand side. Turning the TV off, or changing to another input, then back to the PC input, it correctly detects the resolution as 1360x768.

Probably just a badly designed LCD, but maybe someone else has come across this before and knows a fix.

Thanks

 

[infinite.loop]

which TV?

brand/model

 

[Kiwi]

The TV is sold by an elecronics supplier in NZ called Dick Smith. The LCD panel is LG Philips, but I dont know if LG Philips is responsible for the rest of the electronics within the set. Im sort of hoping that a change of some timing parameters in the video syncing may allow the set to pickup the correct resolution first time.
Thanks

 

[KevL]

Have you tried powerstrip to set up screen resolution?

It has the ability to adjust width and positions of sync pulse in the video frame.


This might help.



Kev

 

[Kiwi]

Hi Kev

I havent tried powerstrip. One thing I did was drop the refresh from 75Hz to 60Hz and that seems to have fixed the problem. Being in a 50Hz PAL country, I would have though a 60Hz refresh would have made for jerky picture - but it hasn't????? The set doesnt allow 50Hz via VGA :-(.
I think I will try powerstrip as it seems to allow greatest flexibility with all these parameters !!

Cheers

 

[KevL]

A tip for using powerstrip.:-

Get hold of a copy of VNC.

This has the ability to display the desktop of 1 machine (say your HTPC) on another.

The reason this is important (essential????) is that with powerstrip you can fairly easily produce a video frame with timings which cannot be displayed on your HTPC monitor. This can then make operating your HTPC (and hence repairing your screen settings) a tad tricky.

If you use VNC then you will always have control over your HTPC even if you mess up the video timings as VNC doesnt seem to care about syncs etc..


Kev

 

[dekkers]

Please look in the owners manual of your tv. Most of the time there are tables in it wich tells you wich resolutions/refresh rates your LCD tv can handle. If you follow those tables most of the time you see that the only good refresh rate is 60hz. Why this is done i don't know, it has something to do with the LCD panel.