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jackleather
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Joined: 27 Sep 2005
Posts: 6
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 Posted: Tue Sep 27, 2005 10:04 am Post subject: DVI to Video Adapter - Twitching TV |
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Hi, i have the Apple DVI to Video Adapter connected to my Philips 36" TV (CRT).
The TV picture 'twitches' at regular intervals (2-3 per second). The twitch is to the right and the top of the display is more disrupted than the bottom.
this happens with both s-video and composite outputs. the display is fine on a monitor.
Help! |
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g5g5
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Joined: 25 Jan 2005
Posts: 2725
Location: Virginia
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| Posted: Tue Sep 27, 2005 10:19 am Post subject: |
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Try downloading DisplayConfigX and play around with the refresh rates. Maybe something higher will stop the flicker. What resolution are you running at?
http://www.3dexpress.de/
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1.25GHz Mac Mini / 1.8GHz iMac G5 / 2.0GHz C2D Mac mini (2009)
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Apple TV 2
iLife's a Bitch! |
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jackleather
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Joined: 27 Sep 2005
Posts: 6
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| Posted: Tue Sep 27, 2005 10:27 am Post subject: |
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| Quote: | | Try downloading DisplayConfigX and play around with the refresh rates. Maybe something higher will stop the flicker. |
I have downloaded this and installed. I am a little scared i might do some damage with it. Do you know of any good tutorials on using it?
| Quote: | | What resolution are you running at? |
1024x768 interlaced |
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g5g5
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| Posted: Tue Sep 27, 2005 11:05 am Post subject: |
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| Quote: | I have downloaded this and installed. I am a little scared i might do some damage with it. Do you know of any good tutorials on using it?
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I don't off hand. I'll look around.
Have you tried lowering your resolution to 800 X 600 or some of the other resolutions shown in Displays? What refresh rates are showing up in Displays?
_________________
1.25GHz Mac Mini / 1.8GHz iMac G5 / 2.0GHz C2D Mac mini (2009)
4GB iPod mini / 2G iPod shuffle / 16GB iPhone 3G
Apple TV 2
iLife's a Bitch! |
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jackleather
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Joined: 27 Sep 2005
Posts: 6
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| Posted: Tue Sep 27, 2005 11:13 am Post subject: |
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| Quote: | | I don't off hand. I'll look around. |
Many thanks
| Quote: | | Have you tried lowering your resolution to 800 X 600 or some of the other resolutions shown in Displays? What refresh rates are showing up in Displays? |
I will try this tonight and let you know.
thanks for your time. |
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jackleather
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Joined: 27 Sep 2005
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| Posted: Wed Sep 28, 2005 4:50 am Post subject: |
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Changing the res to 800x600(ish) and moving over to 60hz (NTSC) stopped the flickering/twitching, which is great - thanks!
So my next question is why?
Also, the TV image appears to be less sharp now - how can i adjust my setting using DisplayConfigX to move back to 1024x768 (isnt this the native res of a tv?) in PAL? |
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g5g5
Veteran Member
Joined: 25 Jan 2005
Posts: 2725
Location: Virginia
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| Posted: Wed Sep 28, 2005 4:35 pm Post subject: |
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| jackleather wrote: | Changing the res to 800x600(ish) and moving over to 60hz (NTSC) stopped the flickering/twitching, which is great - thanks!
So my next question is why?
Also, the TV image appears to be less sharp now - how can i adjust my setting using DisplayConfigX to move back to 1024x768 (isnt this the native res of a tv?) in PAL? |
Do you know what the refresh rate was when you were running 1024x768 before? You can really play around with the refresh rate. I just wouldn't go over 85.
_________________
1.25GHz Mac Mini / 1.8GHz iMac G5 / 2.0GHz C2D Mac mini (2009)
4GB iPod mini / 2G iPod shuffle / 16GB iPhone 3G
Apple TV 2
iLife's a Bitch! |
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