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

Objectivist-C

macrumors 6502
Original poster
Jul 1, 2006
443
27
How does a MacBook compare to the later iBook G4s when spanning the desktop to an external monitor? My iBook is a bit choppy with Dashboard and Exposé effects at 1024x768 + 1600x1200.
 

Lovesong

macrumors 65816
I've ran a co-worker's MB on my 24" Dell (1900 X 1200), and it ran as smooth as butter. By "spanning" you mean extend the desktop to the second screen right? I didn't seem to have issues with it, though to be fair he has 2GBs of RAM in that thing.
 

donster28

macrumors 68000
Oct 5, 2006
1,726
811
Great White North
I connect mine (MBP C2D) to a Sony 32" Bravia 32S2010 (1080i) through VGA and looks great. Although not ultra-hi res but awesome nontheless. I used to have a toshiba Regza 32" and that TV just isn't optimized for this kind of purpose so I suggest you stay away from it...the screen cannot scale to the right size no matter what resolution you set on ur macbook pro.

I record HD content from my cable box to the MBP via firewire and when played back in the Bravia, it's per pixel beautiful...although the frame rate from live TV will be reduced to 24fps which give a cinema feel to them.
 

9Charms

macrumors regular
May 19, 2006
206
0
Vancouver, BC
I have 2 gigs of RAM in my MacBook C2D 1.83, and currently have it attached to an external 17" Viewsonic monitor, and for some reason, the performance is noticeably worst with the extended desktop. There are many many more "spinning beachballs" than usual.

However, when I close the lid and run it (so that it only outputs to the monitor) all the problems go away. I'm thinking this is an issue with the GMA 950 graphics.

I'm thinking of trading this one in and upgrading to a MacBook Pro.
 

sunfast

macrumors 68020
Oct 14, 2005
2,135
53
When you're spanning, doesn't that chop your VRAM in half (i.e. split between the two screens)? That way in clamshell all the VRAM is used for the external.
 

9Charms

macrumors regular
May 19, 2006
206
0
Vancouver, BC
When you're spanning, doesn't that chop your VRAM in half (i.e. split between the two screens)? That way in clamshell all the VRAM is used for the external.

I don't see how that would factor in since the GMA950 shares RAM with your system. I have 2 gigs of RAM, and activity monitor shows over 1GB unused, even while in extended desktop.

Anyone else with this problem?

I should mention that I installed generic RAM instead of "recommended for Apple RAM"
 

sunfast

macrumors 68020
Oct 14, 2005
2,135
53
But doesn't the GMA use a maximum of 64mb RAM? Therefore you'd have 32mb per screen irrespective of how much RAM you have.
 

Magnus Reftel

macrumors member
May 16, 2006
77
0
But doesn't the GMA use a maximum of 64mb RAM? Therefore you'd have 32mb per screen irrespective of how much RAM you have.
Yes.
I'm using my CD MB with screen spanning for normal use, but not for demanding games - switching to just using one display improves performance drastically.
 

Abstract

macrumors Penryn
Dec 27, 2002
24,889
921
Location Location Location
Yeah, it would split the RAM.
Rather than use your monitor in clamshell mode, can you leave your laptop open, turn off the screen, and use the external monitor? I like the MacBook keyboard. :apple:
 

9Charms

macrumors regular
May 19, 2006
206
0
Vancouver, BC
Rather than use your monitor in clamshell mode, can you leave your laptop open, turn off the screen, and use the external monitor?

How would you turn your MacBook monitor off? The only way I know is to close the lid, put it to sleep and then use an external keyboard to wake it up... is there an easier way?
 

Pomme.inc

macrumors newbie
Feb 14, 2007
7
0
Montréal, Québec
How would you turn your MacBook monitor off? The only way I know is to close the lid, put it to sleep and then use an external keyboard to wake it up... is there an easier way?

I would like to know too... cause when I connect my macbook to my 24 inch dell 2407 I just want to use the big screen not both
 

00hkelly

macrumors 6502
Nov 15, 2006
259
0
that wouldnt make any difference though because the graphics card will still be displaying the screen just the brightness would be reduced. Im sure performance would be increased when the screen is turned off (just before sleep or something chosen in energy saver) however when you went to use the keyboard on the macbook the screen would wake again. What happens when you press the monitor button on the keyboard, is there an option to just use the external display alongside mirror and extended desktop?
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.