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Predominant Author

Level 1

1 points

Zoom (Accessibility feature) is extremely slow with multiple monitors [OSX 10.10]

When connecting an external display to my Laptop and using the "Ctrl + Scroll" functionality for accessibility zooming, the display/graphics are extremely slow.

An estimate of FPS would be sub 1FPS. The machine becomes unresponsive and is unusable for a minute or so, until I can get it zoomed back out, and it begins responding normally.

This is very disruptive, as its a feature I use often.

The same laptop on OSX 10.9 did not exhibit this issue.

Hardware: MacBook Pro 13" Retina Mid 2014, 16GB Ram

Software: OSX Yosemite 10.10

System Information: http://cl.ly/image/0H1p032w0M0w

Reproduction steps:

1. Enable CTRL+SCROLL zoom functionality in System Preferences > Accessibility

2. Connect external monitor (Display port cable)

3. Hold CTRL and Scroll to zoom

4. System becomes slow, graphics slow, showing < 1 FPS without any other applications running

MacBook Pro with Retina display, OS X Yosemite (10.10)

Posted on Oct 23, 2014 6:33 PM

72 replies

Dec 5, 2014 5:08 PM in response to Predominant

Hey - I have a work around. Set the zoom to picture in picture. You can make the picture area full screen if you want. This significantly increases the zoom speed.

Dec 6, 2014 1:36 PM in response to Predominant

Apparently, 10.10.2 fixes it !

I'm using the 10.10.2 developers pre-release and it feels good with Retina + 1080 TV.

Monday I'll test with 3 monitors (retina + 27" Apple Display + 1080 LCD) and let you know.

Dec 6, 2014 1:53 PM in response to Predominant

Yup. Same problem here. Slow on the MBP15" monitor, and intolerable when an external monitor is plugged in. Yosemite was a serious downgrade.

t87

Level 1

9 points

Dec 6, 2014 2:12 PM in response to Baytelman

Thanks for reporting, you got my hopes up! Could you please do me a favor and check if this issue has been fixed too: Menu bar icons flash when changing Desktops (namely the icons in the menu bar keeps flashing when ever you switch focus between a Desktop and a Full screen app or between two Desktops, very clearly visible in Dark Mode). Both of these bugs are related to discrete graphics card usage.

Thanks!

Dec 6, 2014 7:02 PM in response to Baytelman

Hopefully it fixes it but its still occurring for me on 10.10.1 iMac (27-inch, Late 2012)

Dec 8, 2014 8:50 AM in response to Predominant

Confirmed: 10.10.2 SOLVES THE PROBLEM.

I'm using 3 monitors

- MBP Retina

- Thunderbolt Display 2560x1440

- 1920x1080

t87

Level 1

9 points

Dec 8, 2014 8:53 AM in response to Baytelman

Could you please check if this issue has been fixed too: Menu bar icons flash when changing Desktops

In 10.10 and 10.10.1 the icons in the menu bar keeps flashing with white boxes when ever you switch focus between a Desktop and a Full screen app or between two Desktops, very clearly visible in Dark Mode. Does it happen in 10.10.2?

I ask because Apple told me they are directly correlated. Thanks!

Jan 23, 2015 12:48 AM in response to Predominant

Ugh, it's hard to even test this because sometimes it becomes so unresponsive that I just have to reboot the machine.

In my case, I've got a newest generation retina MBP and the problem happens regardless of whether there is a monitor attached.

I thought it might have something to do with the fact that I'm running f.lux to change the screen colors at night. But disabling it doesn't seem to make a difference.

Also, all graphics and window management functions on my system become laggy (though not as bad) after/during running google hangouts.

Jan 28, 2015 6:24 AM in response to Predominant

You will all be happy to know that this is fixed in 10.10.2. YAY!

Jan 28, 2015 10:04 AM in response to Eric Merrill

THE SMOOTHNESS IS REAL

YOSEMITE 10.10.2

Jan 28, 2015 11:44 AM in response to Predominant

Confirmed, 10.10.2 fixes this. Just as good as before! Multiple monitors and all. My only complaint, and I hope Apple hears this minor complaint, is we have been suffering for this from the beginning without any acknowledgment and then they didn't even disclose in the 10.10.2 list of fixes that this item was fixed. I don't understand why but regardless I am DEEPLY grateful to Apple that it is fixed. Thank you.

akilbasa

Level 1

13 points

Apr 1, 2015 11:50 AM in response to Chuck Straughn

It did NOT fix the issue for me.

Yosemite 10.10.2,
MBP 13 Retina
1 external Thunderbolt Display (+own retina)

Extremely slow zoom on the retina screen. And when i shift over to the external 1080p, it's a little smoother but STILL LAGGY.

Zoom (Accessibility feature) is extremely slow with multiple monitors [OSX 10.10]