White flash when opening windows

[mussor]

Almost everytime I open Configuration window, Customize Keyboard Shortcuts, XY custom copy dialog, or even XY itself, at the very beginnig of showing the windows there is brief white flash (whole or part area of the window) before the content gets properly shown.
Now, I know this is mostly Windows stuff and occurs on many programs/apps. But! I have seen programs that could mitigate or complete eliminate this white flash. The only things I read somewhere regarding this had to do with somehow properly setting some kind of canvas (of the windows). I don't know...
Do you think there is a way of getting rid of it?
I am used to dark mode everywhere and this white flash bang is quite a lot annoying :/

[admin]

1) Windows 11?

2) Are these screenshots mockups?

[mussor]

1) yes, windows 11
2) screenshots taken out of video - screen capture (OBS studio)

[admin]

Can't reproduce, and never heard about this issue. Are you using any 3rd party Windows skins or themes?

[mussor]

No, just default Win11 Dark theme.
Really? I have seen the flashes on every win computer I have used recently. There is a ton of posts across web (reddit...) about it. Maybe u use mostly light themes?
Or maybe you have animations enabled? Then sometimes the flash is a bit hidden by it.

Anyway, try opening something like Edge with system dark mode enabled. I bet you will at least see the flash there as well.

[admin]

Confirmed. (I had light mode and animations enabled, and I use Win11 only for testing.) And you're right, of course, the web full of complaints about this. But most folks are aware of the fact that MS doesn't fix bugs, it's their DNA.

Unfortunately, I don't think I can do anything about it. It's too low level. There is a small chance that the upcoming 64-bit edition can handle it. At least it seems to be possible: AFAIK File Explorer starts without a white flash, right?

[Horst]

The solution to remove the White Flash when opening a browser is simple.
Switch to Firefox
I run it in dark mode and there is no such effect.

There must be some solution for XY, as other file managers (Total Commander and Free Commander)
don't have such a flash on start-up in dark mode.

[admin]

Tried a couple of obvious things (so obvious that even AI knows it), but all failed (AI doesn't know about that ... well, maybe it will learn from this statement).

[mussor]

what!?! that's new to me, 64bit coming! Looking forward

(...)
Switch to Firefox
(...)

heck of course I do use Firefox! .. Edge was just an example..

Confirmed. (I had light mode and animations enabled, and I use Win11 only for testing.) And you're right, of course, the web full of complaints about this. But most folks are aware of the fact that MS doesn't fix bugs, it's their DNA.

Unfortunately, I don't think I can do anything about it. It's too low level. There is a small chance that the upcoming 64-bit edition can handle it. At least it seems to be possible: AFAIK File Explorer starts without a white flash, right?

Hold yourself, but shockingly Microsoft recently made a fix for Win Explorer so it does not flash anymore. It had flashed in past, luckily not anymore on Win11.

Tried a couple of obvious things (so obvious that even AI knows it), but all failed (AI doesn't know about that ... well, maybe it will learn from this statement).

oh, well.. AI. Thanks for investigating.
Programs that does not flash on me (and might a good example): foobar2000, Firefox, Notepad++

[phred]

Just throwing out another "white-flash" oddity.

I use Firefox in light mode and it launches on monitor 2, but flashes on monitor 1. And if I open it on monitor 1, the flash is on monitor 2. It started with an update about six months ago. Tried all sorts of suggestions from all sorts of places and nothing worked. I've given up and am now used to seeing it flash.


EDIT: Typos

[admin]

Crazy. Looks like a totally solvable issue (at least for MS). And totally embarassing.

Anyway, I'll look at it again with the 64-bit edition.

[milllirem]

Adding my vote for fixing this bug (not really admin's fault as he realizes). In the whole ecosystem of Windows 11 apps these days, Microsoft-provided or otherwise, the flashbangs are standing out more on the apps that haven't been fixed yet - as other apps are fixed, the remainers stand out more for visual annoyance. At least this is my experience. I wince whenever I maximize an XY window or show a context menu (same problem there) now.

I'm hoping Windows 12's dwm.exe fixes the underlying problem universally, but there are obviously workarounds as a lot of other apps don't flash now.

[Raf]

Win 10 1809: this problem is as old as Windows. I've tried different builds of Windows up to the latest one. Each of them has at least one application that fills the window with white color until it is fully rendered. If the window is open in full screen mode, it all glows white. awful.

[admin]

And a waste of energy.

[mussor]

For a reference, this is a workaround/fix for Notepad++. Maybe something similar could work for XY as well? Seems like they are temporarily painting a dark background until all controls are loaded.

https://github.com/notepad-plus-plus/no ... pull/10639