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I use a 4K TV as a monitor and have a minor problem
As I said, I use a 4K Colour TV (all correctly setup and running) as a monitor and most times all is fine but occasionally when I switch on my desktop, Firefox shows a small 2K display so I have to double click the title bar to change the display back to 4K. I also use, concurrently, Opera (for it's free inbuilt VPN) and it sometimes does the same thing. This also occurs with Skype AND uTorrent at various times. Because it is so common I suspect my Windows 10 64bit Pro must be sending some sort of signal to cause this behavior? All in all Firefox does this less than the other three Apps :)
All Replies (3)
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0 Build ID: 20180128191252
Steps to reproduce:
Started Firefox and used it normally. Eventually loaded a video game in full screen mode. Not full screen windowed, actual full screen. Once I was done playing and exited the game my computer returned to my desktop. I've done this with several games and always the same result. Fullscreen Windowed mode does not cause this issue.
Upon exiting the game, Firefox was scaled back to 100% instead of the 250% I had the computer set to before starting the full screen game. As such all of the elements of the window were extremely tiny. Once Firefox is closed and re-opened it returns to normal scaling. While writing this report I opened Deadspace 3 into Fullscreen mode and alt-tabbed out and the issue recurred. I've attached a screenshot showing a run box for scale. You will notice the title bar on the run box is far larger than Firefox. The run box is normal size and this text is too small to read on my screen. Forgive any typos, I cannot see what I'm writing. :)
Firefox should have returned to normal scaling after exiting the full screen game session without having to restart.
I'm sorry but what are you trying to say? I don't play ANY games so I don't see ANY similarity with what you're saying. I use ALL Apps in 4K mode all the time. I switch off my system every night. Sometimes, the next morning when I switch on, my displays revert to 2K size so I have to physically switch them back to 4K mode. I see this as a bug in Firefox and every other App that does this. I don't see the relevance of what you're saying about game mode and 100% and 250% screen sizes etc???? This IS a bug! Is it going to be fixed? TIA
No further comment so I suppose I can assume nothing will be done!? So I can stop monitoring this thread and stop looking for support from moz://a :(