Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

kraftzwerg

macrumors regular
Original poster
Jul 8, 2005
120
0
I like to use the rotate display option in "Display preferences" under Tiger (comes in handy to display whole pages while keeping them readable on a 17 inch screen). However, once I turn on this setting, OSX becomes suddenly terribly slow, e.g. when I move a window the movement lags behind the cursor and is very choppy etc.

My question: is this an issue that's specific to the Mac Mini ? Is it a harware or a software problem? [Maybe the graphics card is somehow optimized for landscape mode and can't handle portrait mode?] Is there something one can do to fix this?

Thanks for any hints!
 
Though I also think that this is a limitation of the graphics card, I would expect Mac OS X to not show this preference unless it could handle it.
 
I am surprised though that OSX should need CoreImage for this effect. One would think that it merely needs to exchange the x- and y- coordinates of its display coordinate system, which doesn't sound like it should require a lot of processing power.
 
kraftzwerg said:
I am surprised though that OSX should need CoreImage for this effect. One would think that it merely needs to exchange the x- and y- coordinates of its display coordinate system, which doesn't sound like it should require a lot of processing power.

I don't think it needs Core Image.
You could enable this feature in Panther aswell, using the ATi Radeon Utilities.

Install the ATi Display Utilities . It will install drivers, and add a System Pref.
Maybe that will help.
 
MacsRgr8 said:
I don't think it needs Core Image.
You could enable this feature in Panther aswell, using the ATi Radeon Utilities.

Install the ATi Display Utilities . It will install drivers, and add a System Pref.
Maybe that will help.
That was an interesting hint - thanks! I did install the ATI utilities and it did indeed offer another way to rotate the screen. Unfortunately it doesn't seem much quicker than the feature built into Tiger.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.