Fuzzy text in MATLAB Live Editor

I've been having some small issues with my MATLAB Live Editor.

On occassion I will notice that the text in the live editor is rather blurry and hard to read. it affects plots as well. See below:

When I click on the MATLAB Live Script and "focus" on the section that is fuzzy, all of a sudden the text becomes sharp. See below:

I only just started noticing this, but it may have been occuring since I recently switched to a new computer. I know I never noticed it on my last PC. I thought perhaps it might be some kind of display or graphics setting on my new fancy GPU, but I am unsure. Does MATLAB have any recommended settings for the NVIDIA Control Panel?

I am running MATLAB Version 9.9.0.1495850 (R2020b) Update 1 and my PC has the following hardware:

OS: Windows 10 Po 20H2 - Build 19042.630

CPU: Intel i9-10920x

RAM: 128 GB Corsair LPX

GPU: NVIDIA GeForce RTX2070 Super

MOBO: Asus X299X AUROUS PRO

Display 1: LG 27UN850-W

Display 2: LG 27UN850-W

[Jared MacDonald]

Hi Charles,

I haven't observed this behavior before and it is remarkable that the fuzziness changes based on whether the section is active. Is it affected by zoom level? (I.e., if you use Ctrl+Mouse Wheel to zoom in and out.)

Thanks,

Jared

[Charles Refvem]

I am now trying to recreate the problem at a different zoom level. It does not appear to be occuring today after enlarging the content in the live editor window. I will try various things today to see if I can get the problem to come back.

[Charles Refvem]

I have checked further, and the fuzziness does occur at different zoom levels, but it is less noticeable at larger scale.

[Charles Refvem]

This issue really makes it challenging to use Matlab. Has there been any progress on determining a cause or potential workaround?

[Hossam Aljarbou]

i'm facing the same issue and the only common thing is the GPU and windows build, working on a ryzen if that makes any difference.

[Zjuv9021]

I'm also now experiencing this issue .. figures are even blurry.

[Didrik Lilja]

Me too. Unaccepable environment to work in. Should be given high priority to be rectified.

[Jack S]

Same here, I think it's starting to affect my eyesight

[Jonas Becker]

About the same here. About 15min after starting Matlab my editor becomes completely blurry. When I click somewhere, the line becomes sharp again and then after some seconds it slowly becomes blurry and not readable. The Problem appears on all monitors I am using.

I use Matlab R2021b, Intel i7-6700HQ, 24GB RAM, NVIDIA Quadro M1000M.

[LCR]

same here, AMD Threadripper 3075WX, 256GB RAM, Nvidia Quadro RTX4000, 4K display, Win10 21H1

[Charles Refvem]

This problem seems to have come back for me, and the settings tweak no long resolves the issue. I've tried tweaking every possible setting I can think of from screen scaling, to 3D graphics settings. Something is just broken.

The live editor is virtually unusable now. The problem even manifested today in the installation of R2022b.

[Robert]

I'm having the same problem with R2022b Update 3. The fonts get fuzzy within 5-10 seconds. Setting focus to the editor makes the fonts crisp again. Nvidia Quadro RTX 4000. I did change the Nvidia 3D Settings to FXAA = off and restarted Matlab and the fuzzy text, getting fuzzier while you watch, went away. The text seems just slightly fuzzy all the time, but barely usable.

Answer 1

[Jonas Becker]

In my case (see comments on first post) it has something to do with the Matlab help. When I open Matlab, all the text is depicted sharply and as it should be. BUT: As soon as I open Matlab help the font becomes fuzzy. When I close the help window, the problem persists.

My solution: Restart Matlab and use the Matlab help on the internet.

[Fabian Bunjes]

Same here. The Problem comes when starting Matlab Help inside Matlab.

Restarting and Using Matlab Help on the Browser is my only Solution so far. Hope this gets fixed

Answer 2

[LCR]

In my case, whatever I do by applying suggested solutions from the Internet are not working.

The only way to fix the issue is just simply disabling the FXAA and all edge smoothing items in the 3D setting of the Nvidia control panel.( Right click on screen) for my Nvidia RTX4000 card.

[Charles Refvem]

It seems that disabling FXAA is sufficient to fix the problem for me. Thanks for the suggestion!

Edit 9/16/22: Disabling FXAA (or any other settings) no longer seems to resolve the issue for me.

[LCR]

Double checked and you are right. Disable the FXAA is enough.

Answer 3

[David Powell]

If you use this command, it should hopefully help with the problem. It seems like an open gl driver issue.

Open Matlab and type:

>> opengl('save','software')

close matlab and reopen.

[Ahmet Berk Selvi]

I had the same issue after updating to RTX 4090, and this solved the issue for me. Thanks a lot!

Answer 4

[Swetha Polemoni]

Hi Charles Refvem,

This issue has been brought to the notice of developers. They may investigate further.

[Pasi Savolainen]

This really makes it very hard to use.

I see this mostly in "Live Editor" and "Help". f.ex Command window is unaffected and is sharp.

Clicking on the blurry text seems to cycle the amount of blurriness.

Can you suggest any workarounds? I've tried forcing DPI, that didn't help.

Otherwise it's 2x1440p (1xPortrait, 1xLandscape), 100% scaling and 1:1 pixel resolution set. Newest drivers.

[Manuel Bridger]

Is there a solution, yet? I have the same issue and I cannot code if I can barely read the lines...

[Charles Refvem]

I have found no solution.

It has been especially problematic for me recently as I use MATLAB to teach virtually through Zoom. My students are unable to see what I am doing on screen!

[Kelly Cui]

I found the same problem in the latest 2021b version. The text blurry is severe. When I click on the MATLAB Live Script and "focus" on the section that is fuzzy, all of a sudden the text becomes sharp. But after a few moment, the text becomes blurry again. I just searched for how to fix it, but I found no idea.

[Jack S]

Same issue here, no solution yet.. live scripts borderline unuseable

Answer 5

[Young Yoon]

I had noticed the same issue today for the first time - as it was fine before today. While looking for the source and fix to the problem (by coming here), it eventually dawned me that I had changed the default monitor (amongst multiple display screens) to a screen with a smaller display resolution. When I reset the default monitor to the earlier one with a larger display resolution, voila, the sharp fonts reappeared. Your mileage may differ.

Answer 6

[Mokhles]

Same here! Any solution from Matlab for the blurry text in live script yet?

[Charles Refvem]

No improvement for me. It seems to get worse at each release also. R2023a is essentially unusable for me. Just look at the Simulink start page...

[Mokhles]

I have the same issue with the same 2023a Matlab after GPU changed to GTX 4090.