https://bugs.freedesktop.org/show_bug.cgi?id=101528
Bug ID: 101528
Summary: RX460 Memory clock stays high until card is "used"
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: sverd.john...@googlemail.com
linux 4.11.4
I use the IGPU on SKL and a RX460 as a dedicated card. In XOrg i turned
autobindgpu, autoaddgpu off and singlecard on. with fb fbcon=map kernel
parameter i map the linux ttys to different cards. the way i switch to the AMD
card is to vt switch and then change the input on my monitor. this works fine
and lets me login via agetty and launch a new xserver. One thing i noticed is
that until i actually do that the memory clock of the card stays high (17xx
mhz?) which makes it 5-8°C hotter and probably uses more power than it needs.
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