Mac os x windowserver 100 cpu

I do have high CPU usage after clean reboot. I've tried to use only one, but WindowServer issue still remain. Other issues I still struggle with: 1. USB 3. When there are all three monitors connected, I have to disconnect one monitor to get HS booted - I tried a lot of things I've found in Nvidia Web Driver support thread - but nothing help.

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I'm uploading my config. Thanks a lot guys for your help, I hope someone can help me or I will try to install Sierra Screenshot See if this modified config makes any difference :. Hello, First to say thanks. Much better!

This pissing me off. I pay close to 5K for a new macbook pro and it does this [expletive removed]. WTF Apple is becoming microsoft, they just release [expletive removed]-wear for all of us to work out. Thank you for this tip! It is absolutely early beta grade, I cannot believe they shipped this as RTM. Killing it seems to fix the problem. Not sure why GAB would need the process though.

Same problem on both macbook air work and home. It was an issue in mavericks and just get worse in yosemite. Is there any official statement about this? Having run Onyx and having it point out that the zero length file was an invalid preference file and then a comment I stumbled across elsewhere about copying the WindowServer preference files back in the the Preferences folders from their system installed locations made me decide to try finding a non-zero length WindowServer.

The actual WindowServer error count went from 9, messages in 12 minutes before the change to 44 messages in 13 minutes since the change. While this was just an informed try it seemed having a current backup to be a good guess and for me it so far, fingers crossed is working well. For me, trying it was better than page after page of seemingly invalide errors in the log and the slow festering of OS X after each boot.

Here is exactly what I did in terminal ; try it at your own risk but if you do let us know what happened. I hope that all my commands are correct; please add comments to correct them if not. Well, I have to revise this to a clue and not a solution.

Poor Mac performance when running GarageSale. WIndowserver CPU usage - GarageSale - iwascoding Help

Tried everything — but after one! What has Apple done? I keep hopeing Apple will fix this but the last time I complained they denied knowing of the problem.

Excellent — thanks! Thanks for the tips. Reducing transparency and going to a plain colour, non-changing desktop image has really reduced WindowServer lag on a Mac Mini late using an external USB powered monitor. The lag was most noticeable in Word , which had a noticeably slow response when typing. Thanks so much!!! None of these helped me. When connecting to the Thunderbolt display, I get slow responsive graphic and sometimes I can see the window redrawing. That happens the most with the desktops close to the right margin and to the icon for adding a new one.

If I unplug the computer from the external display and get the discrete GPU to work on the bullit in display, no problems at all, as well as using the integrated GPU. No problems at all on Mavericks, I still have my previous install bootable, but I made the mistake of setting iCloud Drive. Therefore I am now obligated to use Yosemite and cannot get back at using Mavericks.

I installed Yosemite as a fresh install two times. I also use Safari as browser. I also had my logic board replaced one year and half ago at Apple Store since the GPU got burnt well known problem of this particular models of MacBook Pro.

What is WindowServer Process on Mac? How to Prevent It from taking High CPU Usage

I got it working fine on my external display for a while. I would empty iCloud of all data and re-install Maverick with a new account.

Terrible, terrible OS. Hi Daniel, thanks for your suggestion. Moreover, will I later be able to merge the old iCloud account with the new one just created ad hoc for downgrading to Mavericks and get iCloud syncing without iCloud Drive. How about the other iOS devices that now are syncing via iCloud Drive? Force relaunching Finder seems to reset WindowServer, fixing the problem temporarily, without having to log out or reboot.

Worked for me. Thanks to all the contributors. Close call. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem.

It will become a fatal error in an upcoming update. Jul , I think I've found a way to reproduce this relatively quickly. It may also require an external keyboard with LEDs to be used on the host. The steps to reproduce this: 1 Start two virtual machines, and put their macOS Dock icons next to one another. Do this, say, 50 to times. Can anyone else confirm this? The keyboard LEDs do change if, for example, caps-lock is on in a guest but not the host, and the VM window gains or loses focus.