Ubuntu
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  1. Bug #1761751
  2. Comment #41

Comment 41 for bug 1761751

Revision history for this message
David Henningsson (diwic) wrote : Re: [Bug 1761751] Re: Black screen on 18.04 + AMD RX460

I booted the 4.17rc1 kernel.

In order to see output I connected an old TV to the DVI output, and that
output was successfully detected (through an DVI-HDMI adapter, if that
matters).

The output of /sys/class/drm/card0-HDMI-A-1 in this case:

dpms: Off

enabled: disabled

modes: (empty)

status: disconnected

I then tried switching which monitor was connected to which port.
Interestingly, in this case both the Dell U2415 and the old TV could
show output successfully.

// David

On 2018-05-02 19:50, Harry Wentland wrote:
> Thanks, mind posting the same for the non-working kernel? I'm curious if the problem is
> 1) we don't detect the display
> 2) we don't enable the display
> 3) we enable the display but wrong
>