Bug 100762

Summary: Nouveau powersave/suspend for discrete card stopped working
Product: xorg Reporter: Roland <roland.singer>
Component: Driver/nouveauAssignee: Nouveau Project <nouveau>
Status: NEW --- QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium CC: jan.public
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
i915 platform: i915 features:

Description Roland 2017-04-23 14:02:51 UTC
Nouveau does not suspend my discrete GPU if idle. However bbswitch (nouveau unloaded) is capable to suspend the GPU. I am running the 4.9.24 linux kernel.

My GPU: NVIDIA Corporation GM204M [GeForce GTX 970M] (rev ff)

Nouveau was capable to switch off the discrete GPU until kernel 4.7.
Starting with 4.8 it stopped working.

Hope we can get this fixed. Thanks!
Comment 1 Ilia Mirkin 2017-04-23 14:40:13 UTC
Can you try booting with pcie_pm_port=off ? If this helps, this may be an instance of bug 98398.

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