empty tooltips in code analyzer

Question

Daniel 2014-2-20

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链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/116987-empty-tooltips-in-code-analyzer

评论： Walter Grossman 2017-2-23

Hi,

I'm running Matlab (R2013b) on Ubuntu (results of ver command are pasted below).

I've just started working with this system, and I've realized that coding is seriously hard because the typical "tooltips" that show up in the editor are empty. I paste an screenshot (see below): the orange marks on the right margin of the editor should indicate a warning. Passing the cursor on them, one typically gets a tootip with a short message, detailing the reason of the warning.

In my case, I still the tooltip... but cannot read anything in there, it's just a grey rectangle. This is terribly annoying... Some idea on what may be the problem?

MATLAB Version: 8.2.0.701 (R2013b) MATLAB License Number: 133450 Operating System: Linux 3.5.0-41-generic #64~precise1-Ubuntu SMP Thu Sep 12 16:50:04 UTC 2013 x86_64 Java Version: Java 1.7.0_11-b21 with Oracle Corporation Java HotSpot™ 64-Bit Server VM mixed mode

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Pim 2014-5-1

编辑：Pim 2014-5-1

在 MATLAB Online 中打开

Hello Daniel, I have mostly the same issue, but the tooltips are not always empty. It seems to depend on the position of the tooltip on the screen and whether you are using multiple monitors or not. When using 1 monitor (built-in display of my laptop) and the position of the tooltip is in the lower 2/3 of my screen, the tooltip is shown correctly. If the tooltip should be shown in the top 1/3 of the screen, the tooltip shows up a couple of lines lower as where it should show up. When using a second monitor the behavior on the built-in screen is the same, but in the top 1/3 of the screen the tooltip is empty. On the second monitor the tooltip is always empty, regardless of position.

Also, the tooltip giving hints about folders not on your path, show the same behavior.

My ver:

    MATLAB Version: 8.3.0.532 (R2014a)
    MATLAB License Number: ••••••
    Operating System: Linux 3.11.0-20-generic #34-Ubuntu SMP Tue Apr 1 20:40:25 UTC 2014 x86_64
    Java Version: Java 1.7.0_11-b21 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
                                                  Version 8.3        (R2014a)