Cast to Roku using Chromium?

Support
1

Windows 10 and my Chromebook are both able to Cast using Chrome to my Roku Ultra. However, I cannot do so using Manjaro KDE with Chromium.

I can see the Cast icon, but when “Looking for Devices”, the result is always “No Devices Found”. Before posting here, I searched Google and the old forum and found several sources which cited:

chrome://flags/#load-media-router-component-extension >> enabled

as a solution, but it’s not working for me on the latest Stable release as of 23 Sep 2020, even after reboot.

Any thoughts? I would rather not install Chrome from the AUR, as it’s not officially supported as we all know. This functionality would certainly be a nice to have working, so any help from the community would be greatly appreciated.

2

Firewall?

Also you might be interested in miraclecast-git in the AUR.

3

Thank you @cscs, you were completely right that it was a firewall issue! After some more Googling this is what I did to get Cast… in Chromium to work:

To verify port range:

cat /proc/sys/net/ipv4/ip_local_port_range
32768 60999

To create ufw rule for IP Address of my Roku:

sudo ufw allow proto udp from 192.168.1.9 to any port 32768:60999

Also needed:

chrome://flags/#load-media-router-component-extension >> enabled

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