From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 91294] [R7 370] DPM and power profile change crash the system
Date: Fri, 10 Jul 2015 16:51:20 +0000
Message-ID:
Bug ID
91294
Summary
[R7 370] DPM and power profile change crash the system
Product
DRI
Version
unspecified
Hardware
x86-64 (AMD64)
OS
Linux (All)
Status
NEW
Severity
major
Priority
medium
Component
DRM/Radeon
Assignee
dri-devel@lists.freedesktop.org
Reporter
elia.argentieri@openmailbox.org
Created attachment 117032 [details]
dmesg | grep radeon with radeon.dpm=0
My system is unable to boot with an MSI R7 370 Armor 2X unless I put
radeon.dpm=0 (or nomodeset) to the boot parameter.
Also any change to the power profile results in an immediate lock up with blank
screen or, sometimes, black and white vertical stripes.
I think my issue is related with #77394 and #76490. Probably wrong frequency or
voltages given that the MSI R7 370 Gaming 4G (which is the better version with
higher frequency) works with DPM
(http://www.phoronix.com/scan.php?page=article&item=linux-411-gallium&num=1)
Tested with Linux 3.16, 4.0 and 4.1.
lspci -nnk | grep VGA:
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Curacao PRO [Radeon R7 370 / R9 270/370 OEM] [1002:6811] (rev 81)