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User profile for user: red tempo
red tempo Author
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Display changed/overscan not working after most recent update

I'm running my mini through an LG 42" plasma TV using a store-bought HDMI to DVI cable, and I had the resolution at 1344x756.

After I did the most recent update for what I assume was Leopard 10.5.7, my resolution and colour quality changed. Now with overscan on the picture is cropped and the dock is almost out of view when I hover over it, and with overscan off there is a black gap of about an inch framed around my screen. The only change ocurred after I reset the computer post-update. I tried re-installing the update and messing around with the cable connection to no avail.

What are the odds that it was the cable? Is there anything you know of to roll back updates? Has this happened to anyone?

Mac Mini 2008, Mac OS X (10.5.7), 42" LG plasma TV as display using DVI to HDMI cable.

Posted on May 14, 2009 2:16 PM

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20 replies
User profile for user: crchrome
crchrome
User level: Level 1
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May 16, 2009 11:07 PM in response to yevmes

The same thing here. My mini used to display at 1080p on my 42" Westinghouse, but after the update it only does 1080i. Not only does it look wrong (top and bottom cropped) but it flickers and jumps a little.

I looked at the color profile file (WESTINGHOUSETX-42F430S-2144FE00.icc) in the color sync utility. It says it was created on 4/30/2009 at 8:20:34pm, so I'm guessing they put new and "improved" drivers in the update along with the profiles.

Is there a way to downgrade? I'd sure like to have my nice, smooth, un-jerky display back...
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User profile for user: Clootie
Clootie
User level: Level 1
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May 19, 2009 5:26 AM in response to red tempo

I have exactly the same problem, on a Sony 36". With overscan on, I can't see the menu bar at the top of the screen, and lose a lot of the dock. By turning overscan off, and fiddling the display settings on the TV (altering area to -2) I can get it so it uses up more (tho still not all) of the screen, with all the bars etc.

I could live with this, however it also seems to have screwed up the res. No matter what setting I use the fonts look fuzzy and hard to read. The tv screen was never quite as crisp as the monitor on our iMac, but I could read an e-mail without feeling nauseous.

Hoping Apple will fix this....
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User profile for user: ehhayden
ehhayden
User level: Level 1
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May 19, 2009 11:21 AM in response to red tempo

Ditto re the upgrade from 10.5.6! The best choice (non-interlaced) is 1280X720.
My display is Samsung LN-T2353H (or 2354H). However, there is no way I am
actualy getting that res. My best description of the text and images is that they're "gritty". Text is difficult to read. The image was excellent before the
upgrade. The degradation happened immediately upon re-boot. Is it possible
to back out the "upgrade" (I didn't backup!)
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User profile for user: Clootie
Clootie
User level: Level 1
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May 21, 2009 1:41 AM in response to sdjeff4sc

Thank you to BSteely above I have now reverted to the pre-update.

Using the link BSteely provided, I followed the instructions to revert to old system (basically, do a reinstall of Leopard from the original discs, choosing archive option to keep all your files & settings, then download a combo update up to 10.6 - link provided in that article). It's taken several hours, but it works.

The picture now fills my TV screen, but best of all my eyes have now stopped bleeding!
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User profile for user: Steve Lepper
Steve Lepper
User level: Level 1
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May 21, 2009 9:05 AM in response to red tempo

Same here - Samsung 42" working perfectly until the 'upgrade'. Worst of all it is on a system I'd especially set up for my parents, one of whom is very ill. The big screen was perfect for them, and also made it easy not having a separate set up somewhere else in the house. I live 150 miles away, don't have the system disc with me on a visit and won't be able to get back to downgrade it for at least two weeks. Thanks Apple!
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Display changed/overscan not working after most recent update

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