Catherine Gramze composed on 2017-03-14 16:47 (UTC):
Note that I am not necessarily looking for a solution. I have a working 4K system using the integrated graphics card. I most want to understand WHY Jessie doesn't work with the radeon driver.
For that I have to suggest asking the specialists in the area rather than a group of mainly mere mortal users. e.g.:
http://lists.x.org/mailman/listinfo/xorg-driver-ati http://lists.x.org/mailman/listinfo/xorg-devel -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/