Slow FPS, graphics and choppy video when connected to a Mini-DVI cable to external monitor on Macbook Mid2007 4GB RAM

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Slow FPS, graphics and choppy video when connected to a Mini-DVI cable to external monitor on Macbook Mid2007 4GB RAM

Hi,

I have a Mid-2007 Macbook white. I have upgraded its memory to 4GB. Snow Leopard was working great, and I said to myself maybe it's time to upgrade to Lion.

After the upgrade all was well. However, a big problem occurs when I plug in to the Mini-DVI display port with the HDMI adapter, to connect to my Sony LCD HDTV. The whole graphics and video slow down, everything is choppy. Quicktime and VLC video playback is strobe and choppy looks like very low Frame Rate. Cannot watch anything, not HD nor low resolutions. The entire computer is slow when the cable is connected.

Things I tried:

*VGA adapter seems to work fine - it's the digital display output that probably causes that.

*Running it through a new user.

This never happened on Snow Leopard. i'm considering to go back. However, I am wondering if there is a way to fix this minor problem.

MacBook, Mac OS X (10.7.2)

Posted on Dec 10, 2011 2:03 AM

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Answer 1

faincut Author

Level 1

14 points

Dec 11, 2011 11:54 AM in response to faincut

Update:

We solved the problem. Weird solution but now it seems to work. I plugged a VGA adpater and played with the screen rsolutions to try and watch a movie well on my LCD screen. I changed the screen resolutions but I couldn't revert back to the default settings. Pressing "Detect Displays" didn't do anything.

Here is the interesting part: When I placed back the DVI-HDMI adapter, suddenly everything worked fine!!! There was no choppy videos, no low fps, works prefect.

Something weird is going on here, but I'm happy I managed to get the DVI to HDMI to work because I was about to removie Lion and bring back Snow Leopard.

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