Video player and volume

So when I watch video in chrome or default browser my screens goes black if I don’t do anything in 1 minute, is there any way for screen to not power off when watching videos?

And when I connect phone to speakers and I turn volume to max, it just stops the songs and turns volume down, anyone has this problem?

Admin

@Svemocni-Zec add more infos please.
What firmware are you using?
Did you considered an upgrade/re-install?

Latest version, I upgraded few days ago to 4.5.4I , I think I saw someone post on xda with same problem about volume but I don’t know if any of you tested the video thing

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