Commit 4d03e3cc59828c82ee89ea6e27a2f3cdf95aaadf (“fs: don’t allow kernel reads and writes without iter ops”) changed the semantics of kernel_read(). The NVIDIA driver relies(?) on reading the PCI device’s configuration to suspend(?) the device in nv_indicate_idle()(?). This results in the following …

I can only get PRIME Render offload working when booting with acpi_osi=“!Windows 2013”. With that booted, the output looks like this: # cat /proc/driver/nvidia/gpus/0000:01:00.0/power Runtime D3 status: Not supported Video Memory: Active GPU Hardware Support: Vide…

My configuration: $ cat /proc/driver/nvidia/gpus/0000\:01\:00.0/power Runtime D3 status: Enabled (fine-grained) Video Memory: Active GPU Hardware Support: Video Memory Self Refresh: Supported Video Memory Off: Supported $ cat /etc/modprobe.d/mhwd-gpu.conf [...] …

Thank you so much for that udev config, that was a much better solution that my script in /etc/local.d! After a bit more research (according to this blog post: Nvidia Optimus on Linux | Mikael Manukyan ), it seems like D3 power state for nvidia optimus graphics is supported first with Turing graphic…

[image] jae: How can I actually turn off the card with this setup? On my previous XPSes like XPS 9550 you could use bbswitch, but I don’t think that works anymore (does not use ACPI calls anymore). I think you can use bbswitch. It’s worth a try in any case. I suggest optimus-manager, which ca…

You were right! I swear bbswitch did not work last I tried (which must be like a year ago or something), guessing it was because of that acpi_osi debacle… So, now I use the same method as I did on my late XPS 9550, a script which changes configs to either using provideroutputsource with PRIME sync …

Some attention here ? 5.10 is LTS. I am with RTX 5000 and can not use newer kernel and 5.9 is EOL, so options are 5.4 and miss all fixes to BTRFS or go to 5.10 and have no power management at all … Just someone post “we are working on it”

As far as you know, how likely is it that the upcoming NVIDIA 460 driver will fix this issue? Or will we need to wait longer? @phusho in the meantime I use this workaround , which however is based on bumblebee and thus it has slightly worst performance than the official Prime Offloading, but it’s st…

Ok, I guess we’ll have to wait longer then. Thanks anyway

PCI-Express runtime D3 power management broken by commit 4d03e3cc59828(?)

Graphics / Linux Linux

phusho January 5, 2021, 10:00am 14

So, no official word from Nvidia yet … stuck with 5.9 for now

PRIME Synchronization is broken on linux 5.10

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PCI-Express runtime D3 power management broken by commit 4d03e3cc59828(?)

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