From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 207137] New: AMDGPU incorrectly reports vddgfx voltage for R9 390
Date: Mon, 06 Apr 2020 14:44:00 +0000 [thread overview]
Message-ID: <bug-207137-2300@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=207137
Bug ID: 207137
Summary: AMDGPU incorrectly reports vddgfx voltage for R9 390
Product: Drivers
Version: 2.5
Kernel Version: 5.6
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: low
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: sandy.8925@gmail.com
Regression: No
I'm using an R9 390 GPU.
vddgfx voltage is always reported as 1 Volt, regardless of load.
I debugged and found that in smu7_hwmgr.c , in funcion smu7_read_sensor(), the
voltage is read from PLANE2_VID when a certain condition is true. This always
results in a final value of 1 Volt.
When I changed the code to read only from PLANE1_VID, the correct voltage seems
to be reported, and it changes under load, from ~900 mv to 1.3 V.
Please fix.
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next reply other threads:[~2020-04-06 14:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-06 14:44 bugzilla-daemon [this message]
2020-04-06 15:07 ` [Bug 207137] AMDGPU incorrectly reports vddgfx voltage for R9 390 bugzilla-daemon
2020-04-06 17:22 ` bugzilla-daemon
2020-04-06 17:23 ` bugzilla-daemon
2020-08-06 16:47 ` bugzilla-daemon
2020-08-30 7:17 ` bugzilla-daemon
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