If driver uses legacy DCE driver, it can be got from dmesg, like dce_v6_0, but if driver uses DC driver for display, it has not. Why do you want to get DCE info? Thanks JimQu ________________________________________ å??件人: Paul Menzel <pmenzel+amd-gfx at molgen.mpg.de> å??é??æ?¶é?´: 2018å¹´8æ??22æ?¥ 15:01:37 æ?¶ä»¶äºº: Qu, Jim æ??é??: amd-gfx at lists.freedesktop.org 主é¢?: Re: Find out DCE version Dear Jim, Am 22.08.2018 um 08:39 schrieb Qu, Jim: > You may get the answer from https://www.x.org/wiki/RadeonFeature/. Thank you very much. But can this information be queried from the running system? If not, itâ??d be great, if itâ??d be added to the Linux messages. Kind regards, Paul