Error: cannot open display: :0

[amano-kenji]

When I start torbrowser, I see

Error: cannot open display: :0

I'm on sway with Xwayland. Other X applications work fine.

[MeisterP]

I neither use wayland, nor sway. So I can't reproduce the issue.

/usr/bin/torbrowser is actually a script, setting some environment variables. Maybe one of those is messing with your system?

[amano-kenji]

$ /usr/lib64/torbrowser/torbrowser
Error: cannot open display: :0

[t4chib4ne]

If you don't require running torbrowser under X you can have it running under wayland natively instead. For testing you could run the following from the commandline:

$ MOZ_ENABLE_WAYLAND=1 torbrowser

I don't know if this will work for the compiled version as I am currently using the torbrowser-launcher.

[MeisterP]

I don't know if this will work for the compiled version

You'd have to unmask the useflag to compile www-client/torbrowser with wayland support.

[amano-kenji]

I haven't unmasked wayland use flag, but equery u torbrowser says wayland use flag is enabled.

[MeisterP]

Please post emerge --info www-client/torbrowser

[amano-kenji]

emerge.info.txt

[MeisterP]

I haven't unmasked wayland use flag, but equery u torbrowser says wayland use flag is enabled.

It isn't. See:
USE="X dbus jumbo-build pulseaudio system-av1 system-harfbuzz system-icu system-jpeg system-libevent system-libvpx system-webp -clang -hardened -system-png (-wayland)"

[amano-kenji]

[MeisterP]

[ Legend : U - final flag setting for installation]
[        : I - package is installed with flag     ]

The I column shows how the package is installed.

 U I
 + - wayland         : Enable dev-libs/wayland backend

So torbrowser is installed with -wayland because the useflag is masked as mentioned in #83 (comment)