Dnia czwartek, 3 listopada 2016 15:41:52 Philippe Dosch pisze: > Hi Folks, > > I'm assistant professor and I teach with the same video projectors > since years (with each of the last three kubuntu releases on my > laptop). I have a strange trouble since my last kubuntu update (2 > > weeks ago). Now I'm under kubuntu 16.10, with a 1.18.4 Xorg server:
Hello! I have exactly the same problem and it lies in the kernel itself, probably in i915 driver, not in X. The change was introuced in kernel 4.7.0, the last of the 4.6.x line (4.6.7) works fine. The changes deal with detection of external Display Port and as a result I get first an error like this: [drm:intel_dp_start_link_train [i915]] *ERROR* failed to update link training at the kernel start (visible in dmesg). And then this output is not recognized anymore. I have filed a bug report https://bugs.freedesktop.org/show_bug.cgi?id=97397 Maybe you can confirm it or append yours so we make developers fix this? I have no idea how to fix this myself. I'm just keeping kernel 4.6.7 to use when I want to do my presentations. -- Łukasz Maśko _o) Lukasz.Masko(at)ipipan.waw.pl /\\ Registered Linux User #61028 _\_V Ubuntu: staroafrykańskie słowo oznaczające "Nie umiem zainstalować Debiana" _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: https://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s
