https://bugzilla.kernel.org/show_bug.cgi?id=60791
--- Comment #12 from Brian Hall hallbw@gmail.com --- Bisect results below. According to my Xorg.0.log, my board is a "ATI Radeon HD 4200" (ChipID = 0x9710) and lspci calls it a RS880.
6f8bbaf568c7f2c497558bfd04654c0b9841ad57 is the first bad commit commit 6f8bbaf568c7f2c497558bfd04654c0b9841ad57 Author: Alex Deucher alexander.deucher@amd.com Date: Tue Jul 30 00:22:53 2013 -0400
drm/radeon/atom: initialize more atom interpretor elements to 0
commit 42a21826dc54583cdb79cc8477732e911ac9c376 upstream.
The ProcessAuxChannel table on some rv635 boards assumes the divmul members are initialized to 0 otherwise we get an invalid fb offset since it has a bad mask set when setting the fb base. While here initialize all the atom interpretor elements to 0.
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60639
Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
:040000 040000 d2bb057047f71419a89def40e6e21dc948c5784c 7e49987ae73078e644723f0cb6c791e15e102ab0 M drivers