Warning: Initializing MATLAB Graphics failed.
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Hello,
I installed MATLAB 2020b on Ubuntu 20.04 LTS. Everytime when I start matlab I get the following warning:
Warning: Initializing MATLAB Graphics failed.
This indicates a potentially serious problem in your MATLAB setup, which should be resolved as soon as possible. Error detected was:
MATLAB:badsubscript
Index exceeds the number of array elements (0).
> In hgrc (line 165)
In matlab.graphics.internal.initialize (line 15)
Does anyone have an idea how to fix that?
10 个评论
Martin Laurenzis
2020-11-23
Hi,
I solved my problem by editing hgrc.m lines:
screenPos = get(groot, 'MonitorPositions');
% Get the screen positioned at [1 1]
screenPos(:,1)=1;
screenPos(:,2)=1;
screen = screenPos(and(screenPos(:,1)==1,screenPos(:,2)==1),:);
width = screen(3);
height = screen(4);
The sceenPos line returns:
>> screenPos = get(groot, 'MonitorPositions')
screenPos =
2561 1 2560 1440
1 -31 2560 1440
Then:
screen = screenPos(and(screenPos(:,1)==1,screenPos(:,2)==1),:)
screen =
0×4 empty double matrix
By setting
screenPos(:,1)=1;
screenPos(:,2)=1;
"screen" turns to:
screen = screenPos(and(screenPos(:,1)==1,screenPos(:,2)==1),:)
screen =
1 1 2560 1440
1 1 2560 1440
I also fixed my OpenGL problems by updating driver for NVIDIA GTX1080TI.
Thanks, Martin
tkazik
2021-1-19
Unfortunately, this is still not solved with the third update of 2020b. The suggestions by @Hannes Gorges with the corrections by @Bruno Luong seem to work and this issue seems to be related to a setup with multiple monitors (apparently some negative indices by the display layout are creating trouble). So I guess the current suggestion does the job, but is still not 100% correct, given that:
% this returns only the 'layout' of the first monitor (size: 1x4)
screen = get(groot, 'ScreenSize');
% returns the full 'layout' of dual monitor (size: 2x4)
screenPos = get(groot, 'MonitorPositions');
So the proper fix will likely have to use the second cmd.
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