Howdy: sudo howdy test fails on Wayland

[ZeroCool2u]

_Please describe the issue in as much detail as possible, including any errors and traces_

On a Dell XPS 13 running Ubuntu 19.04 with Wayland running sudo howdy test generates the following error:

Invalid MIT-MAGIC-COOKIE-1 key: cannot connect to X server :0

I suspect that this is an issue with OpenCV attempting to capture frames with a method that isn't supported without an x-server available, because I'm running Ubuntu on Wayland. I've tried running it with QT_QPA_PLATFORM=wayland as well with the same result.

It also may be related to #104

Note, howdy works perfectly otherwise and detected the correct (infrared) webcam with zero configuration. :smile:

---

I've searched for similar issues already, and my issue has not been reported yet.

Linux distribution (if applicable): Ubuntu 19.04

Howdy version: 2.5.1

[picaschaf]

Same problem here on Fedora 30.

[simonbcn]

This app doesn't work with Wayland.

[ZeroCool2u]

If you look at the issue above you'll see it definitely does work with Wayland. The test command fails on Wayland though.

[boltgolt]

It is related to #104, with the same cause, sudo fails to find the X server. Take a look at this reddit thread.

[berndso]

It seems that this will be fixed in GNOME 3.34 https://www.phoronix.com/scan.php?page=news_item&px=XWayland-Xauth-GNOME-Works

[ardevd]

So what's the conclusion? Will it work fine under Wayland apart from howdy test? I'm running Sway so fixes for GNOME does not help me.

[ZeroCool2u]

@ardevd You'll probably just need to try it yourself since you're using Sway and not GNOME. Setup is pretty painless though, shouldn't be more than a couple minutes to setup.

[ardevd]

I can confirm it works just fine!

[boltgolt]

Closing this as a stale issue

[Zocker1999NET]

I'm running sway (installed from Debian Unstable Repo) and newest version from howdy (2.6.1) but still got this issue:

$ sudo howdy test
Opening a window with a test feed

Press ctrl+C in this terminal to quit
Click on the image to enable or disable slow mode

No protocol specified
Unable to init server: Could not connect: Connection refused

(python3:1199520): Gtk-WARNING **: 18:46:56.392: cannot open display: :0

Got no problems with other apps, Firefox is using Wayland native, but Xwayland is also enabled and DISPLAY var is set correctly as other apps like xeyes can be opened. It would be fine if howdy test would even open using Xwayland, don't need native Wayland support on this one.

@ardevd Have you configured anything special to let howdy test run?

[Zocker1999NET]

Sorry, found my issue after trying sudo xeyes: Sway's Xwayland seems to block access for root applications by default, fixed with xhost local:root, see https://askubuntu.com/questions/175611/cannot-connect-to-x-server-when-running-app-with-sudo