On Wed, Jan 25, 2017 at 12:16 PM, Krzysztof Nowicki <krzysztof.a.nowicki@xxxxxxxxx> wrote: > Hi, > > On środa, 15 czerwca 2016 14:14:01 CET wrote: >> On 15 June 2016 at 13:49, Dave Airlie <airlied at gmail.com> wrote: >> > Excuse me for top posting. >> > >> > So I finally got back to this patch, still don't like it. >> > >> > Apart from the doing 3 things in once which is just annoying, current >> > userspace for tiled monitors >> > relies on the behaviour that the cached edids are retrieved before the >> > connector is show to userspace. >> > >> > This is so that for tiled monitors both connectors are shown with >> > tiling properties so userspace can pick the correct monitor size. >> > >> > Now I realise this isn't great, since at least for the two cable 5K >> > monitors you won't ever plug them in at once. >> > >> > So we should probably discuss more what userspace should do in the >> > presence of a tiled monitor where it can only see one tile, >> > >> > If we go ahead with something like this, things will look kinda ugly >> > as you plug in a 4k monitor and it'll try and set a mode >> > on the first tile when it gets the hotplug (or it could be racing and >> > notice the connectors before the hotplug). So it then >> > sets the 1920x1080 mode on one connector and gets another hotplug to >> > set the tiled mode up. >> >> Though I think the fix is to leave the cached edid test in add port, >> >> And maybe the rest of the patch is okay then. >> >> Dave. > > Is this patch still being considered for pulling in? > > Recently I've been fighting with a HP UltraSlim docking station with a MST hub > inside in order to get it working with the amdgpu DAL/DC code. I couldn't get > it to work until I stumbled upon this patch. Applying it solved the issue > instantly. > > What I have found during debugging is that the MST hub would return SST sink > port numbers < 8 which resulted in no EDID being retrieved and in turn the > status of the outputs was 'disconnected'. Harry, Any chance you could re-spin this against something more recent and re-send? Alex _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
