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jgraph / drawio-desktop

Official electron build of draw.io
https://www.diagrams.net
Apache License 2.0
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Text and shapes become suddenly blurred #1909

Open blueglyph opened 2 days ago

blueglyph commented 2 days ago

Preflight Checklist

Describe the bug While using the application, the text of GUI elements (menu, widget, ...) becomes suddenly blurred. The same happens to shapes, either in the left panel or in the document. I couldn't find the pattern that triggers that problem; it's apparently random and may target one or several items, or even the whole window. The blurred items may or may not become sharp again.

To Reproduce Steps to reproduce the behavior:

Expected behavior

Screenshots image

draw.io version (In the Help->About menu of the draw.io editor):

Desktop (please complete the following information):

Additional context

davidjgraph commented 2 days ago

Reading through, it seems disabling FXAA is the only workaround. But, also various users seem to think we fixed this, #387 , https://www.reddit.com/r/electronjs/comments/1f8r1ja/graphics_issues_with_almost_all_electron_apps/, for example.

Given the volume of desktop users we have, it's in the 10s of millions, it's affecting a very small %, otherwise we'd be overloaded with reports, all electron apps would be. The reddit thread supports that theory. Is a complete hardward list of your system available that you can post?

blueglyph commented 2 days ago

Reading through, it seems disabling FXAA is the only workaround. But, also various users seem to think we fixed this, #387 , https://www.reddit.com/r/electronjs/comments/1f8r1ja/graphics_issues_with_almost_all_electron_apps/, for example.

I mentioned #387 in the issue, but I didn't see various users thinking it's fixed — only one, who didn't seem sure at all. As for the reddit you linked, it's a bit chaotic as usual, but there's no clear consensus, either.

Given the volume of desktop users we have, it's in the 10s of millions, it's affecting a very small %, otherwise we'd be overloaded with reports, all electron apps would be. The reddit thread supports that theory. Is a complete hardward list of your system available that you can post?

Apart from the fact it's an NVIDIA card, there's only one monitor at 1080p, and the scaling in Windows is set to the default 100%. I had the same problem on an older computer with a GTX 980. I can try to resurrect it and do a test on it, and perhaps a laptop too (though I think it's just an Intel chip).

How do you estimate that only a very small percentage is affected (or that there are 10s of millions of users)? I know many people who usually don't bother to report problems, even when they already have a GitHub account; I'm pretty sure many stop using the app or find a work-around. 😅

I can see a lot of discussions about it (I'd already seen quite a number in the past, but I didn't keep track). Here are a few:

There's an FAQ entry about something that looks like it in the Electron project GitHub, but I'm not entirely sure if it's the same problem or a more minor text antialiasing issue:

At some point, it was possible to fix the problem in VSCode by disabling the GPU (see below). That's a work-around that worked for me. I had a glance at the VSCode sources, but it seems this is simply passed on to electron, so perhaps it's not a good solution (perhaps an option in the settings?).

Bottom line, I'm not sure whether it's something to be fixed on the application side or on the framework side. For example, if Electron uses the GPU, perhaps it's possible to disable FXAA from the app or from Electron.