Bug 613338

Summary:	sys-power/bbswitch with x11-drivers/nvidia-drivers is not compatible with kernel PCI Express power management
Product:	Gentoo Linux	Reporter:	Stefano <raistlin>
Component:	Current packages	Assignee:	Pacho Ramos <pacho>
Status:	UNCONFIRMED ---
Severity:	normal	CC:	mva, np-hardass, proxy-maint, rei4dan, soap
Priority:	Normal	Keywords:	NeedPatch, UPSTREAM
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://github.com/Bumblebee-Project/bbswitch/issues/140
Whiteboard:
Package list:		Runtime testing required:	---

Description Stefano 2017-03-20 18:48:25 UTC

As detailed here:
https://github.com/linrunner/TLP/issues/244

and here:
https://github.com/Bumblebee-Project/bbswitch/issues/140

kernel >3.6.8 added pcie_port_pm that is incompatible with bumblebee.

The workaround is to disable PCI Express power management at boot, passing pcie_port_pm=off, but that's hardly a solution.

Comment 1 Pacho Ramos gentoo-dev

2020-05-31 13:45:27 UTC

Per upstream bug it seems a bbswitch bug

Comment 2 Stefano 2021-04-17 08:14:28 UTC

Still true as of bumblebee 3.2.1_p20210112-r4