Icon for legend not showing in graphs

Hello,

Please refer to the image attached. I would like to know why the icons for my Fit and Confidence bounds in my legend are not displaying?

Code for graph:

figure
mdl_avgM = fitlm(maxes_x,maxes_y);
plot(mdl_avgM);

Thanks in advance.

Answer 1

[Star Strider]

This is a problem with certain AMD graphics drivers. Updating to the newest driver version solved it for me.

[Adam Danz]

Which AMD graphics driver did you update to? My system indicates that I'm already using the best driver (Radeon 540X Series vs 26.20.11018.6). Surely it's better than my 8-year old Win 7 laptop that I used for years without a problem.

[Connor Fitzgerald]

Funny. I updated MATLAB from 2019 to 2020 thinking that would fix the issue but didn't think to update the graphics card driver.

[Star Strider]

I use whatever AMD recommends. I periodically check AMD Drivers and Support, download the Auto-Detect and Install app and run it. I’ve never had any problems with it over more than a decade of using AMD graphics and processors. (I did it again just now, and updated to the latest driver version, accounting for the delay.)

Both my recent machines have Ryzen processors, and AMD has some neat utilities, such as the AMD Ryzen Master Utility, for those as well.

As usual with Win 10, I do at least three re-starts after the installation of the new driver or Win 10 ‘upgrades’ to be certain everything is ‘settled’ and integrated.

[Adam Danz]

Thanks for the details, Star Strider.

[Star Strider]

My pleasure!

[Star Strider]

Connor Fitzgerald —

I discovered that fix when I did an occasional upgrade to a new AMD Radeon Graphics driver on my (relatively recent) laptop, and then did the same with my newer desktop. The opengl fix was an interim solution. (Checking driver updates every few months is something I’ve done for years. AMD does not always alert with new driver notifications, only when there’s a major upgrade or bug fix.)

Answer 2

[Adam Danz]

This annoying problem has popped up for me too, recently.

If you're experiencing the same problem I have, you can fix it a few ways,

1. Set opengl rendering method to software

opengl software

2. or set the line widths to some value greater than 0.6 (default is 0.5).

Notice that this also affects the legend box. The line width of the legend box can be set using

leg = legend(__);
leg.LineWidth= .601;
% or 
legend(__,'LineWidth',0.601)

I experienced the problem for the first time after updating to a brand new laptop with Win 10 but never had the problem on my much-older laptop with Win 7.

[Connor Fitzgerald]

Same problem! It is annoying and seems unnecessary.

I added the opengl software line - I'm happy to have it solved so easily. Thank you!

Updating drivers worked as a long term solution.