On 4 October 2015 at 21:36, Andreas Tunek <andreas.tunek@xxxxxxxxx> wrote: > 2015-10-04 13:31 GMT+02:00 Andreas Tunek <andreas.tunek@xxxxxxxxx>: >> 2015-10-04 13:26 GMT+02:00 Andreas Tunek <andreas.tunek@xxxxxxxxx>: >>> 2015-10-04 6:31 GMT+02:00 Dave Airlie <airlied@xxxxxxxxx>: >>>> On 3 October 2015 at 04:03, Andreas Tunek <andreas.tunek@xxxxxxxxx> wrote: >>>>> Hi >>>>> >>>>> I sort of recall that somebody (Dave Airlied) work on this in order to >>>>> get the full 5K from a retina iMac. Was that work finished or is that >>>>> coming in 4.3 or later? Or was it abandoned? Or maybe I am not >>>>> remembering correctly? >>>> >>>> you can try a 4.2 kernel with radeon.mst=1 >>>> >>>> I've no idea if it will work. >>> >>> Didn't seem to have any effect. Is this a correct boot env: >>> [ >>> root@iMacLinux tuna]# cat /proc/cmdline >>> BOOT_IMAGE=/vmlinuz-4.2.1-300.fc23.x86_64 >>> root=UUID=e3e65337-b654-495f-b7c1-0212e1fd0797 ro rhgb quiet >>> LANG=en_US.UTF-8 radeon.mst=1 >>> >>>> >>>> Dave. >> >> Sorry for replying again, but you wrote some stuff in February*, did >> you test with an iMac or some other 5K screen then? >> >> http://thread.gmane.org/gmane.comp.video.dri.devel/124345 >> >> Best regards >> Andreas No I never tested anything on an imac 5K. Can you boot with drm.debug=6 radeon.mst=1 and post the dmesg logfile? I'm not sure if the 5K mode on these would need to be reverse engineered there is definitely some trickery involved. Dave. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
