From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 70651] New: cannot write to power_dpm_force_performance_level:
invalid argument (radeon 7730m)
Date: Sun, 16 Feb 2014 00:25:22 +0000
Message-ID:
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path:
Received: from mail.kernel.org (mail.kernel.org [198.145.19.201])
by gabe.freedesktop.org (Postfix) with ESMTP id 57DBAFA364
for ;
Sat, 15 Feb 2014 16:25:25 -0800 (PST)
Received: from mail.kernel.org (localhost [127.0.0.1])
by mail.kernel.org (Postfix) with ESMTP id 8B6DD2020E
for ;
Sun, 16 Feb 2014 00:25:23 +0000 (UTC)
Received: from bugzilla2.web.kernel.org (bugzilla2.web.kernel.org
[172.20.200.52])
by mail.kernel.org (Postfix) with ESMTP id 9B6C220203
for ;
Sun, 16 Feb 2014 00:25:22 +0000 (UTC)
List-Unsubscribe: ,
List-Archive:
List-Post:
List-Help:
List-Subscribe: ,
Sender: dri-devel-bounces@lists.freedesktop.org
Errors-To: dri-devel-bounces@lists.freedesktop.org
To: dri-devel@lists.freedesktop.org
List-Id: dri-devel@lists.freedesktop.org
https://bugzilla.kernel.org/show_bug.cgi?id=70651
Bug ID: 70651
Summary: cannot write to power_dpm_force_performance_level:
invalid argument (radeon 7730m)
Product: Drivers
Version: 2.5
Kernel Version: 3.13.3
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: sjh+bugzillakernel@sanjioh.org
Regression: No
Created attachment 126301
--> https://bugzilla.kernel.org/attachment.cgi?id=126301&action=edit
3.13.3 dmesg
hi,
I'm using a notebook with intel ivy bridge + amd radeon 7730m hybrid graphics.
With the latest stable kernel (3.13.3) I can't echo (low, high, auto) to
/sys/class/drm/card0/device/power_dpm_force_performance_level:
root@darkstar:~# echo "high">
/sys/class/drm/card0/device/power_dpm_force_performance_level
-bash: echo: write error: Invalid argument
root@darkstar:~# echo "low"
/sys/class/drm/card0/device/power_dpm_force_performance_level
low /sys/class/drm/card0/device/power_dpm_force_performance_level
root@darkstar:~# echo "auto"
/sys/class/drm/card0/device/power_dpm_force_performance_level
auto /sys/class/drm/card0/device/power_dpm_force_performance_level
I cannot say it's a regression since I haven't tried previous kernels.
I can echo "battery", "performance" or "balanced" to
/sys/class/drm/card0/device/power_dpm_state
Some other info:
root@darkstar:~# cat
/sys/class/drm/card0/device/power_dpm_force_performance_level
auto
root@darkstar:~# lspci|grep VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09)
01:00.0 VGA compatible controller: AMD/ATI [Advanced Micro Devices, Inc.]
Chelsea LP [Radeon HD 7730M] (rev ff)
root@darkstar:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0:DIS: :DynOff:0000:01:00.0
1:IGD:+:Pwr:0000:00:02.0
root@darkstar:~# for i in /sys/class/drm/card0/device/power/*; do echo "$i:
$(cat $i)"; done
/sys/class/drm/card0/device/power/autosuspend_delay_ms: 5000
/sys/class/drm/card0/device/power/control: auto
/sys/class/drm/card0/device/power/runtime_active_time: 33415
/sys/class/drm/card0/device/power/runtime_status: suspended
/sys/class/drm/card0/device/power/runtime_suspended_time: 934700
/sys/class/drm/card0/device/power/wakeup: disabled
/sys/class/drm/card0/device/power/wakeup_abort_count:
/sys/class/drm/card0/device/power/wakeup_active:
/sys/class/drm/card0/device/power/wakeup_active_count:
/sys/class/drm/card0/device/power/wakeup_count:
/sys/class/drm/card0/device/power/wakeup_expire_count:
/sys/class/drm/card0/device/power/wakeup_last_time_ms:
/sys/class/drm/card0/device/power/wakeup_max_time_ms:
/sys/class/drm/card0/device/power/wakeup_total_time_ms:
root@darkstar:~# cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 575000 kHz
current engine clock: 210280 kHz
default memory clock: 900000 kHz
current memory clock: 00 kHz
voltage: 825 mV
PCIE lanes: 16
(This last output is different from the ones I've seen around)
Am I missing something?
dmesg attached
Thanks
--
You are receiving this mail because:
You are watching the assignee of the bug.