341      iPhone_iPad_Mac_apple

Black line on the dock

Hi All,

I have an iMac 27'' (late 2013) that I have just updated to Yosemite. All well and smooth, although the iMac seems a bit slower at startup...

The only strange occurrence is a black line, about 1cm long, that I see on the right hand-side of the dock, just below the downloads and the trash folders:

I can find no information about this - is it some feature of Yosemite I still cannot understand, or something I should worry about?

Thank you in advance for your help!

Beppe

Try restarting the Dock.

Applications > Utilities > Terminal

Launch Terminal.

Wait until the $ sign appears .

Enter the command  killall Dock

Press the Enter key on the keyboard. Wait until the prompt shows up.

Quit Terminal.

Try restarting the Dock.

Applications > Utilities > Terminal

Launch Terminal.

Wait until the $ sign appears .

Enter the command  killall Dock

Press the Enter key on the keyboard. Wait until the prompt shows up.

Quit Terminal.

Thanks! It worked - the black line disappeared!

Thank you again,

Beppe

This does not work for me, still a black line under the Applications Folder...

Thanks! The thin black line disappeared after doing these steps for me, too.

Although the fix from Dominic23 worked, it doesn't solve the problem as to what that line is?

If I set my dock to the left hand side of the screen when the line appears, it remains at the bottom of the screen and is not attached to the docks positioning!?

Something of nothing really, just one of those things that grinds my gears and happens a lot 

Same thing here.  The terminal trick killed it, only to have it reappear a few seconds later.

Could it have to do with Time Machine?

Or an update running in the background?

Seems to work.  Thanks.  Will watch to see if it returns.

最后更新：2017-08-18 10:18:48

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