I have found the solution myself.
Apparently, If you install Windows 10 Pro N, media playback isn't supported.
You need this extra feature from Windows 10.
Thanks for the support!
Hi, if you have a Windows 7/10 Pro key you can upgrade.
There are several instructions in the net how to do it, search for windows 10n to pro, for example. In short, you have change the key in Management > Info section, iirc.
There were issues in Win10 with HEVC.
MS was to have provided a fix but I didn't get it (?!).
Still running Windows 10 OS Version 1909 (Build 18363.900) so I had to uninstall HEVC.
Not sure if our issues are related...
I don't think this affect V that way, these are just outdated CODECs.
Pettern seems to be correct.
MS upgraded my X64 Windows 10 Enterprise N to Version 10.0.19041 Build 19041 last night, and this morning Vivaldi went to the pale V splash screen and then disappeared without trace. Several times.
So then I upgraded Vivaldi to the latest version , and as egigoka put it so well:
Install Vivaldi 3.1+
Try to open
Expected behavior: browser opens
Experienced behavior: opens windows with Vivaldi logo and no interface for couple of seconds and closes...
After searching for a while here, I realised that it HAD to relate to something of MS's upgrade, and went looking there (Technet) , to discover that Win 10 N versions do not include the Media Feature Pack; it has to be installed separately.
So I did, and Vivaldi is back! Thank you all.
Posting this in the hope that it will help others to a speedier resolution...
Note that other than installing the latest version, I have done nothing to Vivaldi itself.
Vivaldi 3.1.1929.45 (Stable channel) (64-bit)
OS Windows 10 OS Version 2004 (Build 19041.388)
@matir143 said in Vivaldi cannot play some videos on Windows:
Chrome, there everything works.
I have Windows 10 N version that comes with no media support.
So Chrome has inbuilt set of (full) media support!?
Obviously we will have to remember that when trouble-shooting/comparing browsers!!
Welcome to the forums and enjoy Vivaldi Browser
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Take your time to read the Community Code of Conduct
In case of doubt, don't hesitate to as reach us.
Thanks for the feedback.
Nun, ich hab nun des Rätsels Lösung. Auf meinem Rechner ist die Enterprise N Version von Windows 10 drauf. Wenn man das dazu passende Windows Media Pack installiert (command line --> winver eingeben) dann gehts plötzlich auch mit vivaldi.