Having the same problem here with a Dell Latitude with 3 displays, 2 DP, 1VGA Ubuntu 16.04, starting using 4.8-rcX kernels and around RC3 or so seems like the problem went away but then returned. Currently on 4.8.1 issue persists. Would be interested in any comments or workarounds.
Having the same problem here with a Dell Latitude with 3 displays, 2 DP, 1VGA Ubuntu 16.04, starting using 4.8-rcX kernels and around RC3 or so seems like the problem went away but then returned. Currently on 4.8.1 issue persists. Would be interested in any comments or workarounds.