Hey everyone I have a bug/oversight related to playing stadia on a Chromebook. While in-game (aka full screen and playing) I am unable to adjust my volume or brightness via either my keyboard or rocker. I am using a pixel slate but another user in the discord channel has a similar issue on their Chromebook.
A solution to this is to bring up the stadia menu with my stadia button or shift + tab and then I can freely adjust the volume and brightness. Hopefully this can be fixed or someone has a solution.
No issue on my HP Chromebook, not that that really helps you!
Have you hard powered it off? Hold power down for X seconds? The only other thing I can think of is it might be changing the function of the keys to be function keys when in full screen?
I was in contact with chat support. Running in Incognito solved the problem. I will have to go through and find the most likely extension or flag that is causing it.