https://bugs.freedesktop.org/show_bug.cgi?id=47007 --- Comment #9 from Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxx> 2012-03-08 01:56:12 PST --- Created attachment 58160 --> https://bugs.freedesktop.org/attachment.cgi?id=58160 Patch which makes the stalls go away Here is the patch which makes the stalls go away. However, I am not that confident we got to the bottom of this. I was looking at how is detection supposed to work on HPD interrupt. What happens is that poll helper gets scheduled, but, since the connector is now not in polled mode, that won't do anything to update it's status. In our use case things work because when no connectors are in connected status we keep probing them manually. I _suspect_ this translates into drm_helper_probe_single_connector_modes call, right? But without this userspace behaviour, and with this patch, connector status will not get updated on it's own. At least this is my understanding and why I said that I don't think we got to the bottom of it. Side question - are connector detect methods supposed to be re-entrant? I am not sure they are looking at radeon_dvi_detect. And as far as I can see they can be running simultaneously from drm_helper_probe_single_connector_modes and output_poll_execute, no? -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
