[Bug 1647895] Re: Tablet suspends while playing video or audio in browser

[Olivier Tilloy]

I can’t install the terminal app on my frieza at the moment, but on my
arale I’m seeing the following values for those environment variables:

XDG_CURRENT_DESKTOP=Unity
DESKTOP_SESSION=ubuntu-touch
XDG_SESSION_TYPE=mir
GDMSESSION=ubuntu-touch
XDG_SESSION_DESKTOP=ubuntu-touch

Given those values, base::nix::DesktopEnvironment
GetDesktopEnvironment() will return DESKTOP_ENVIRONMENT_UNITY, which
explains why oxide instantiates the FDO implementation of
PowerSaveBlocker.

It appears lightdm is responsible for setting XDG_CURRENT_DESKTOP, and
it sets it to the value of the "X-LightDM-DesktopName" key in
/usr/share/lightdm/sessions/ubuntu-touch.desktop.

I assume changing that value to e.g. "Unity8" would have lots of
undesirable side effects, so we probably need to patch oxide to be
cleverer at guessing the desktop environment.

** Changed in: oxide
    Milestone: None => branch-1.20

** Also affects: oxide/1.19
   Importance: Undecided
       Status: New

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Title:
  Tablet suspends while playing video or audio in browser

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