On Mon, Jan 30, 2017 at 08:43:17AM -0800, Dave Hansen wrote: > On 01/30/2017 01:12 AM, Daniel Vetter wrote: > > On Thu, Jan 26, 2017 at 12:34:29PM -0800, Dave Hansen wrote: > ... > >> And, yeah, I think it just gets the connected status wrong. The > >> connector is still there. > > > > Hm, I thought I replied here but I didn't: > > - Is this just after boot (and then the connector is stuck forever), or > > starts to happen after suspend/resume, or some other system change like > > that? Or do they just crop up eventually? > > The most consistent thing I do to screw it up is switch systems on my > DVI KVM switch. When I switch back to the system in question, it > doesn't seem to notice the condition. The connectors eventually show up > with random combinations of switching to the console (ctrl-alt-f1) and > back, running xrandr, or running gnome-control-panel and opening the > Displays applet. Hm, so is this a dp mst kvm switch (i.e. do the connectors get hot-added/removed when you plug/unplug that thing)? Or just some other non-mst switch? I was working under the assumption that this is mst still, but I've never seen an mst kvm switch. > I haven't been able to discern any pattern to it. Sometimes just > running xrandr fixes it. Sometimes just opening the control panel. > Others, I have to do it several times. > > I don't think it shows up if I just leave it for a while. > > > - Does this only happen once the connector is destroyed? Please trace > > intel_dp_destroy_mst_connector with something like: > > I'll see if I can gather that. If it's not mst, then don't bother with this for obvious reasons :-) -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
