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


macrumors newbie
Original poster
Jun 7, 2013
Hi guys,

Looking for a little help. I use a 24" Dell monitor with my Macbook pro. I mainly use it for work as I work from home and I was getting a little tired of staring at a 13" screen all day. Playing Football Manager and Minecraft on a larger screen was another reason...

Anyway, I find I get a lot of slowdown when using the monitor. When I'm working, I find navigating web pages can be glitchy, and even typing search terms into google can lag.

When playing games, it's unbearably slow. If Football Manager is running; it takes ages to scroll through a web page, and Minecraft is unplayable. I tend to play both without the monitor now, as it's just too slow.

This only happens when the monitor is plugged in. I was hoping a Late 2011 Mabook pro, with 4GB of Ram and the OS running on a 128GB SSD would be able to handle an external monitor, but it doesn't look like it can. Any tips or advice? I'm thinking of doubling, maybe even tripling the RAM.

About my Mac:
Processor 2.3 GHz Intel Core i5
Memory 4 GB 1333 MHz DDR3
Graphics Intel HD Graphics 3000 384 MB
Serial Number C02GFC5FDRJ7
Software OS X 10.8.3 (12D78)

DELL U2412M Display
1920 x 1200
Intel HD Graphics 3000 384 MB graphics


macrumors 6502a
Aug 7, 2011
I suspect your issue is with the crappy, low-mem graphics driving a high-res display. Try lowering the resolution and see if performance improves. It'll look like crap, but at least you'll know if it's due to the higher resolution or something else.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.