From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 98004] RX470 doesn't reclock memory if a second display has been plugged in at some point
Date: Sat, 01 Oct 2016 14:31:01 +0000 [thread overview]
Message-ID: <bug-98004-502@http.bugs.freedesktop.org/> (raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=98004
Bug ID: 98004
Summary: RX470 doesn't reclock memory if a second display has
been plugged in at some point
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: minor
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: jonathanmoerman@gmail.com
If a second display has been plugged in the memory clock gets stuck at the
highest frequency, even if the display is disabled (using xrandr) or unplugged
again.
How to reproduce: plug in a second display and either disable it or unplug it
again, the memory will continue to be clocked at its maximal frequency (Here:
1750Mhz).
Kernels used for testing: Linux 4.4 (amdgpu-pro kernel driver), 4.7, 4.8rc5
The hardware is perfectly capable of clocking back to its lowest frequency if
only one display is actually enabled. (It works as expected in Windows)
This issue doesn't cause any problems other than using more watts than
necessary.
I'm not currently using the system with the RX470 GPU, I'll upload a dmesg log
in a few minutes.
I'm sorry if this isn't the correct place to post this bug, I'm new here.
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next reply other threads:[~2016-10-01 14:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-01 14:31 bugzilla-daemon [this message]
2016-10-01 14:47 ` [Bug 98004] RX470 doesn't reclock memory if a second display has been plugged in at some point bugzilla-daemon
2016-10-03 2:55 ` bugzilla-daemon
2016-10-03 6:53 ` bugzilla-daemon
2016-10-03 16:09 ` bugzilla-daemon
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