On Thu, 17 Oct 2019 17:04:11 +0200,
Lukas Wunner wrote:
>
> Przemysław Kopa reports that since commit b516ea586d71 ("PCI: Enable
> NVIDIA HDA controllers"), the discrete GPU Nvidia GeForce GT 540M on his
> 2011 Samsung laptop refuses to runtime suspend, resulting in a power
> regression and excess
Przemysław Kopa reports that since commit b516ea586d71 ("PCI: Enable
NVIDIA HDA controllers"), the discrete GPU Nvidia GeForce GT 540M on his
2011 Samsung laptop refuses to runtime suspend, resulting in a power
regression and excessive heat.
Rivera Valdez witnesses the same issue with a GeForce GT
https://bugs.freedesktop.org/show_bug.cgi?id=75985
--- Comment #115 from Przemysław Kopa ---
(In reply to Lukas Wunner from comment #114)
> HDA_CODEC_ENTRY() needs to match for the 32-bit HD audio vendor ID. Just to
> double-check, could you execute "cat
> /sys/bus/pci/devices/:01:00.1/hdaudi
Fixes state transitions of Nvidia Pascal GPUs from D3cold into higher device
states.
v2: convert to pci_dev quirk
put a proper technical explanation of the issue as a in-code comment
v3: disable it only for certain combinations of intel and nvidia hardware
v4: simplify quirk by setting flag on
