I'm not sure if you asked for the contents of these files from a working or non-working kernel, but I'll take the working kernel since that's obviously a lot easier.
The monitor, Dell U2415, is connected via its input source "HDMI (MHL) 2". The monitor name "DELL U2415" shows up in the edid file. status: connected enabled: enabled dpms: On modes: 1920x1200 1920x1080 1920x1080 1920x1080i 1920x1080i 1920x1080 1920x1080i 1920x1080 1920x1080 1920x1080 1920x1080 1920x1080 1600x1200 1280x1024 1280x1024 1152x864 1280x720 1280x720 1280x720 1024x768 1024x768 800x600 800x600 720x576 720x576i 720x480 720x480 720x480i 720x480i 640x480 640x480 640x480 720x400 // David On 2018-05-02 16:11, Harry Wentland wrote: > Is it HDMI from the board to HDMI on the monitor? I'd like to rule out > any use of an adapter or HDMI-to-DVI cable. > > What monitor is this? > > Is the monitor detected? > > What do you see in the 'status', 'enabled', 'dpms', and 'modes' files in > /sys/class/drm/card0-HDMI-A-1/ ? > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1761751 Title: Black screen on 18.04 + AMD RX460 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1761751/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
