Bug 100762 - Nouveau powersave/suspend for discrete card stopped working
Summary: Nouveau powersave/suspend for discrete card stopped working
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nouveau (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Nouveau Project
QA Contact: Xorg Project Team
Depends on:
Reported: 2017-04-23 14:02 UTC by Roland
Modified: 2019-12-04 09:27 UTC (History)
1 user (show)

See Also:
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.
Comment 2 Martin Peres 2019-12-04 09:27:20 UTC
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