The issue occured again this afternoon (as usual).
- Now, only Safari was concerned (this is mostly Safari being concerned by this issue : 90% of the occurences ...)
- Everything came back to normal after closing (cmd-Q) and opening Safari again.
VIDEO : http://youtu.be/jp3DfAgM3Nk
I'm having a mission control issue as well that may be the same...
When I do a 4 finger swip up on my touchpad, my safari windows goes to a tiny thin line. I can see my other windows find, Finder, Mail, etc.... but the safari one all but dissapears except for a small line like a thread.. I cant choose this line to switch to safari so it is quite annoying
Yeah ! I'm not alone !!
Question : if you close safari and then re-open it :it should fix (temporarily) the issue ? Correct ? If so, we have exactly the same issue.
Sometimes, it affects some other applications, but -as you- Safari is 90% of the case the only app impacted.
Still I never found any other solution than close/re-open.
It's really annoying as this "mission control" becomes so useless with this issue !
I believe that some of Mission Control's preferences are tied to your Dock settings. Try this and see if it fixes it:
Press and hold the "Option" key and click on "Go" from the menu bar up top. Select "Library".
From the Finder window, open your "Preferences" folder.
Find a file called "com.apple.dock.plist". Rename it "com.apple.dockbackup.plist".
Restart your Mac.
Does this fix your Mission Control issues?
Also note that this will reset your Dock to it's original configuration. You may want to tweak the Dock back to your liking after this is done.
Thanks for the help.
I Just tried : it does not fix the issue :-(
I'm just wondering :
- it looks like the issue comes once Safari is minimized before I shut the computer off : once restored (at next boot-up) Safari has the issue
- it looks like the issue does not occur if Safari is closed or stays maximized before I shut-off.
I will reconfirm above-mentionned hypothesis and let you know ...
I'm sorry for such a late reply but this same problem happened to me today and I chanced upon this thread.
As you said it is onl happening with Safari. I tried deleting the com.apple.dock.plist as well and restarting but that did not solve the problem so obviously its not tied to the dock preferences. Have any of you managed to find a workaround to this problem as this MacBook is pretty new and I'm getting very irritated with that horrible white line
Okay so I kinda found a workaround to it. Umm it had only started after I installed Windows 7 via Bootcamp and I think one of the drivers didnt install properly and then "something" happened
I know this doesnt make any sense ^^^ but yeah i just reinstalled my drivers and the problems now permanently gone. I also deleted the com.apple.dock.plist yet again and this time before rebooting i switched off safari and cross checked it was closed by going into Apple Logo->Force Quit and then closing it from there and then rebooting. After that it worked properly and hasnt given me trouble since studying.
So i dont know what sorted it out but something did and im happy