[Intel-gfx] [PATCH] drm: Don't race connector registration
dave.hansen at intel.com
Mon Jan 30 16:43:17 UTC 2017
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
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.
More information about the Intel-gfx