From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 109887] vega56 undervolting/overclocking voltage issues Date: Wed, 06 Mar 2019 08:06:12 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0310803072==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id C998589AE6 for ; Wed, 6 Mar 2019 08:06:12 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0310803072== Content-Type: multipart/alternative; boundary="15518595720.C79AaF.4147" Content-Transfer-Encoding: 7bit --15518595720.C79AaF.4147 Date: Wed, 6 Mar 2019 08:06:12 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D109887 Bug ID: 109887 Summary: vega56 undervolting/overclocking voltage issues Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: kgkggl+bugs.freedesktop.org@gmail.com Created attachment 143547 --> https://bugs.freedesktop.org/attachment.cgi?id=3D143547&action=3Dedit dmesg output I overwrite "pp_od_clk_voltage" to control the voltage, but I have a proble= m. The GPU voltage represents the value of "/sys/class/drm/card0/device/hwmon/hwmon0/in0_input" If I set "pp_od_clk_voltage" before starting Xorg/compton/WM, the GPU volta= ge will be locked at 1200mv. If I set "pp_od_clk_voltage" after starting Xorg/compton/WM, the GPU is loc= ked to 1200mv after a heavy load. Unless I set "echo c > /sys/class/drm/card0/device/pp_od_clk_voltage" again, the idle voltage will return to 900-950mv.But still higher than the set val= ue. Then we have a new problem.I can't control the "P7" voltage by setting "pp_od_clk_voltage". The value in "pp_od_clk_voltage" can be changed, but t= he reading is always 1200mv when the GPU jumps to "P7". I set "P6" and "P7" to the same value to prevent the GPU from jumping to "P= 7" My "pp_od_clk_voltage" setting: OD_SCLK: 0: 852Mhz 800mV 1: 974Mhz 825mV 2: 1096Mhz 850mV 3: 1218Mhz 875mV 4: 1340Mhz 900mV 5: 1462Mhz 925mV 6: 1584Mhz 950mV 7: 1584Mhz 950mV OD_MCLK: 0: 167Mhz 800mV 1: 500Mhz 800mV 2: 700Mhz 900mV 3: 800Mhz 950mV OD_RANGE: SCLK: 852MHz 2400MHz MCLK: 167MHz 1500MHz VDDC: 800mV 1200mV Default "pp_od_clk_voltage" setting OD_SCLK: 0: 852Mhz 800mV 1: 991Mhz 900mV 2: 1138Mhz 950mV 3: 1269Mhz 1000mV 4: 1312Mhz 1050mV 5: 1474Mhz 1100mV 6: 1538Mhz 1150mV 7: 1590Mhz 1200mV OD_MCLK: 0: 167Mhz 800mV 1: 500Mhz 800mV 2: 700Mhz 900mV 3: 800Mhz 950mV OD_RANGE: SCLK: 852MHz 2400MHz MCLK: 167MHz 1500MHz VDDC: 800mV 1200mV RYZEN 1700 MSI B350M MORTAR PowerColor Radeon RX Vega 56 Linux 5.0.0-arch1-1-ARCH #1 SMP PREEMPT Mon Mar 4 14:11:43 UTC 2019 x86_64 GNU/Linux Thanks! --=20 You are receiving this mail because: You are the assignee for the bug.= --15518595720.C79AaF.4147 Date: Wed, 6 Mar 2019 08:06:12 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated
Bug ID 109887
Summary vega56 undervolting/overclocking voltage issues
Product DRI
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter kgkggl+bugs.freedesktop.org@gmail.com 

Created attachment 143547 =
[details]
dmesg output

I overwrite "pp_od_clk_voltage" to control the voltage, but I hav=
e a problem.

The GPU voltage represents the value of
"/sys/class/drm/card0/device/hwmon/hwmon0/in0_input"

If I set "pp_od_clk_voltage" before starting Xorg/compton/WM, the=
 GPU voltage
will be locked at 1200mv.
If I set "pp_od_clk_voltage" after starting Xorg/compton/WM, the =
GPU is locked
to 1200mv after a heavy load.

Unless I set "echo c > /sys/class/drm/card0/device/pp_od_clk_voltag=
e" again,
the idle voltage will return to 900-950mv.But still higher than the set val=
ue.

Then we have a new problem.I can't control the "P7" voltage by se=
tting
"pp_od_clk_voltage". The value in "pp_od_clk_voltage" c=
an be changed, but the
reading is always 1200mv when the GPU jumps to "P7".

I set "P6" and "P7" to the same value to prevent the GP=
U from jumping to "P7"

My "pp_od_clk_voltage" setting:
OD_SCLK:
0:        852Mhz        800mV
1:        974Mhz        825mV
2:       1096Mhz        850mV
3:       1218Mhz        875mV
4:       1340Mhz        900mV
5:       1462Mhz        925mV
6:       1584Mhz        950mV
7:       1584Mhz        950mV
OD_MCLK:
0:        167Mhz        800mV
1:        500Mhz        800mV
2:        700Mhz        900mV
3:        800Mhz        950mV
OD_RANGE:
SCLK:     852MHz       2400MHz
MCLK:     167MHz       1500MHz
VDDC:     800mV        1200mV

Default "pp_od_clk_voltage" setting
OD_SCLK:
0:        852Mhz        800mV
1:        991Mhz        900mV
2:       1138Mhz        950mV
3:       1269Mhz       1000mV
4:       1312Mhz       1050mV
5:       1474Mhz       1100mV
6:       1538Mhz       1150mV
7:       1590Mhz       1200mV
OD_MCLK:
0:        167Mhz        800mV
1:        500Mhz        800mV
2:        700Mhz        900mV
3:        800Mhz        950mV
OD_RANGE:
SCLK:     852MHz       2400MHz
MCLK:     167MHz       1500MHz
VDDC:     800mV        1200mV

RYZEN 1700
MSI B350M MORTAR
PowerColor Radeon RX Vega 56

Linux 5.0.0-arch1-1-ARCH #1 SMP PREEMPT Mon Mar 4 14:11:43 UTC 2019 x86_64
GNU/Linux

Thanks!

You are receiving this mail because:
  • You are the assignee for the bug.
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