White flash when starting app since v0.9.0; goes away after using --disable-gpu

[Jrags87]

I have an app that starts maximized with a dark background. Every NW release since 0.9.0 when I start my app there is a quick white flash (I'm assuming something related to the hardware renderer). if I use --disable-gpu argument, the white flash does not occur, but this is not a solution for me as I need gpu acceleration.

Also, if I update all files except nw.exe, the white flash will not occur. This leads me to believe my issue is related to a change made to the nw.exe file between v0.8.4, and v0.9.0.

I am already setting show: false in manifest, and then doing win.maximize(); win.show(); within my app.

With NW v0.8.4 and earlier the app launches perfectly without the flash.

Can this be fixed in an upcoming version? I have tested with Windows 7 and 8.1 also using Intel, nVidia, and AMD graphics cards and get the same results

Want to back this issue? Post a bounty on it! We accept bounties via Bountysource.

[4ver]

@Jrags87 A way around this is to set the window to hidden and show it a few ms after the document has loaded

[kerwitz]

@4ver How would you do this on the main window that is started by NW?

[kerwitz]

Answering the question myself ;)
Include "show": false in your package.json and show the window through the nw.gui module later from inside your script.

[maschinenzeitmaschine]

hi, i have the same problem - slightly different however:
i do not really care about any white flashes on startup but on window.location.reload (so show: false in manifest does not do the trick). which results in a white flash lasting about a full second - on mac as on pc. how can i get rid of this?

[nwjs-bot]

This should be working with latest version now.

In 0.13 we changed to an optimized architecture so more features can be supported, see http://nwjs.io/blog/whats-new-in-0.13/ and it's good for keeping up with Chromium upstream -- we released with Node.js v6.0 and new Chromium versions within 1 day after upstream release.

The new version would fixed many issues reported here and we're scrubbing them. This issue is closed as we believe it should be fixed. Please leave a message if it isn't and we'll reopen it.

[maschinenzeitmaschine]

hi, i just downloaded the latest version (20.2 sdk) and checked but the white flash on reload is still there - on mac as well as on pc...

[rogerwang]

merge this issue with #5502