Hi Rex, I bisected a regression to your "drm/amd/pp: Unify powergate_uvd/vce/mmhub to set_powergating_by_smu" change. Since this change, the VCE ring test fails on this Kaveri laptop, which prevents the amdgpu driver from initializing at all, see the the attached kern.log. If I disable VCE via the ip_block_mask module parameter, I get an oops in kv_dpm_get_sclk called from amdkfd, see the attached no-vce.log. Since the change above landed for 4.19-rc1, the regression should be fixed before the final 4.19 release if at all possible. Note that before this change, the VCE IB test has always (as far as I remember) failed on this machine, see the attached vce-ib-fail.log. But I don't care about that too much, as I don't need VCE, and I haven't noticed any other issues related to that. P.S. Somebody else bisected a Mullins issue to the same commit: https://bugs.freedesktop.org/show_bug.cgi?id=107595 -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer -------------- next part -------------- A non-text attachment was scrubbed... Name: kern.log Type: text/x-log Size: 17909 bytes Desc: not available URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180822/ba8f1dac/attachment-0003.bin> -------------- next part -------------- A non-text attachment was scrubbed... Name: no-vce.log Type: text/x-log Size: 15450 bytes Desc: not available URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180822/ba8f1dac/attachment-0004.bin> -------------- next part -------------- A non-text attachment was scrubbed... Name: vce-ib-fail.log Type: text/x-log Size: 1964 bytes Desc: not available URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180822/ba8f1dac/attachment-0005.bin>