Google Chrome Temporal Dithering

optix

1) I'm experiencing exactly the same on a otherwise safe system. Firefox is ok.
2) Unforunately not
3) WIll do.

JTL

Seagull All the external GPUs I have tested used temporal dithering

It's not properly published yet, but here's some test results of some AMD GPUs under Linux you may find interesting.

https://github.com/ledstrain/wiki.ledstrain.org/pull/22/files#diff-a10179b563cdf170bb9b2c7e5567fe49357a9f0f8fd434f4fecb9f171a426c66

Seagull

JTL

That is interesting, both the gaming and professional AMD cards I tested dithered on windows. I wonder if Linux users are trusted to set their own dithering settings.

JTL

Seagull I haven't done any Windows development in quite a while, but it might be theoretically possible for a third-party utility to emulate the register changes performed by the Linux driver. There might be some caveats to this, but I'll document that later.

machala

So some news from my end:

Google support is unwilling to do anything with my request and keeps sending me to Chrome support that just does not exist
Chromium bug report: no update there. Again, please star the bug or comment there if you see the issue as well:
https://bugs.chromium.org/p/chromium/issues/detail?id=1157382
@Gurm Thanks a lot for your comment, I am able to confirm your findings, Chrome v68 probably still isn't as good as Firefox (but it's really hard to tell), but definitely the issue started with v69.

So the next course of action is clear: try to figure out what was changed in v69 and see if it's a feature or a setting that can be disabled (either directly within Chrome or by a setting for compiling Chromium - the same thing I did with dithering).

@Seagull I am not ignoring your advice, but I do not believe the theory with the GPU being the cause is true here, at least this is the last thing I'd check - for me the issue exists on all systems I have. Additonally I am able to completely disable temporal dithering in NVidia linux drivers. On the contrary I am aware that there are differences between GPUs and even drivers in terms of their lightness on one's eyes so I am not entirely dropping this.

Quad43

Any solutions to this?

asus389

I'm curious if this was ever resolved? I am noticing the same thing on current versions of Chrome (and Chrome based browsers). Also in Firefox versions >88 (with the new UI) I started having the same issue as with Safari >14. Safari 13 is fine and Firefox 78ESR is fine. Is there something that changed in the web rendering world in the past couple years that could have brought this out?

machala

asus389 Hello, yes, I know about the FF and have EXACTLY the same issue. I even opened a bug report with Mozilla, but tracking down what version it started with was rather hard for me. Perhaps we could get in touch and work on this together? The mozilla devs seemed open to tracking the issue down and this may actually be our gateway to understanding what this really is all about!!

This is all very weird and something is certainly going on here, more and more applications are using the same troubling rendering… MS Teams, RealVNC client, GeforceNow client… it's terrible…

ban

I have used Firefox for a lot of time mostly because of the way it renders fonts. The fonts in Chrome look too thin for me and that has to do something with ClearType not being used I think. If you open a page in Chrome and Firefox and compare you will most likely see a difference in font rendering. Lately I've switched to Edge because they've enhanced font rendering and seems to use the ClearType from Windows (I've enabled in flags for "Enhance text contrast"). I like features like image of the day, vertical tabs with no caption bar, font rendering… but slowly it seems to get bloated.

Sunspark

I use FF with dark reader and a dark theme.

machala

Sunspark Yes, it helps, I actually use dark themes everywhere I can now, but it's not the real solution…

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