https://bugzilla.kernel.org/show_bug.cgi?id=77671

Bug ID: 77671 Summary: radeon system does not boot with 3.14.6 (bisect -> 4740d5c1c89c152ef847e4a479a87a25e763b286) Product: Drivers Version: 2.5 Kernel Version: 3.14.6 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: renerietz@gmx.net Regression: No

My system does not boot anymore (blank screen, no response, no journal entries after restart) with kernel 3.14.6. I did a bisect on the linux-stable tree (3.14.y branch). The last non-working commit was:

commit 4740d5c1c89c152ef847e4a479a87a25e763b286 Author: Alex Deucher alexdeucher@gmail.com Date: Fri Apr 11 11:21:50 2014 -0400

drm/radeon: add support for newer mc ucode on CI (v2)

commit 277babc374f6ecab6af182554f5d9f35a7768755 upstream.

Fixes mclk stability on certain asics.

v2: print out mc firmware version used and size

bug: https://bugs.freedesktop.org/show_bug.cgi?id=75992

Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

Chipset info from Xorg: RADEON(0): Chipset: "VERDE" (ChipID = 0x683d)