Navigation

    UBports Robot Logo

    UBports Forum

    • Register
    • Login
    • Search
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Search

    Need help connecting again to external display

    Support
    2
    7
    469
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • mihael
      mihael last edited by

      I'm on Pro 5, rc channel. I used to be able to connect to wireless external display but now it sees the TV under settings but when I click to connect to it, it just waits for a while and says "connecting" but nothing happens. In the end it says something like it was not able to connect. Where can I look for errors? Where can I find a log file? Thanks for any help!

      1 Reply Last reply Reply Quote 1
      • Ingo
        Ingo last edited by

        If you say "used to be able to connect", was that with 15.04?
        Because in 16.04 there is a bug that prevents connecting to a wireless external display.

        For now there is a workaround described in https://github.com/ubports/ubuntu-touch/issues/781#issuecomment-423732902

        mihael 1 Reply Last reply Reply Quote 1
        • mihael
          mihael @Ingo last edited by

          @ingo Thanks for your help. I don't remember if that happened when I switched to 16.04 - it might as well be.

          I tried to add the suggested line to the suggested file and then restarted the phone but it didn't work...

          Any idea what can I do next?

          1 Reply Last reply Reply Quote 0
          • Ingo
            Ingo last edited by

            Is the added line still there after reboot? If yes, I don't know what else to check 😞

            mihael 1 Reply Last reply Reply Quote 0
            • mihael
              mihael @Ingo last edited by

              @ingo Yes, the line is still there... I tried to put the line in different sections in that file and in the end I put it at the end of the file, outside any section. I also tried manually to disavle apparmor with sudo /etc/init.d/apparmor teardown and then play with aethercastctl - no change. Am I missing something?

              The folder /run/aethercast/ is empty...

              1 Reply Last reply Reply Quote 0
              • mihael
                mihael last edited by

                I made it work... According to https://bileto.ubuntu.com/#/ticket/2162, I changed the line from /{,var/}run/aethercast/dhclient*.leases lrw, to /run/aethercast/dhclient*.leases lrw, and then voila! Thank you @Ingo for pointing me into the right direction.

                1 Reply Last reply Reply Quote 2
                • Ingo
                  Ingo last edited by

                  That's strange...

                  The curly braces enclose optional parts, i.e. /{,var/}run/aethercast/dhclient*.leases lrw, means /var/run/aethercast/dhclient*.leases lrw, and /run/aethercast/dhclient*.leases lrw,

                  The curly braces ({}) make this rule apply to the path both with and without the content enclosed by the braces.
                  https://www.novell.com/documentation/apparmor/apparmor201_sp10_admin/data/bx5bmkc.html

                  P.S.: because I'm usually on the dev channel and update rather frequently, I wrote a script to re-apply the change after each update: https://gist.github.com/Ingo-FP-Angel/905c5655511435b0ded2eb354dab538b

                  1 Reply Last reply Reply Quote 3
                  • First post
                    Last post