More info:
* ubuntu-driver install did not install nvidia-dkms-440 (had to be installed
by hand)
* Upon boot, /sys/bus/pci/devices/:01:00.0/power/control is set to `auto`,
but the GPU is powered on. Setting it to `on` then to `auto` again powers down
the GPU.
* This temporary fix above
I'm on a Dell XPS 9560, i7-7700HQ, GP107M (GTX 1050 mobile).
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Title:
Nvidia dGPU active despite prime-select set to Intel card
To manage
The path to this issue for me is different. I installed this laptop
originally with 19.04 and nvidia-435 (possibly post installation?) and
all was well upon upgrade to 19.10 and later on to 20.04.
Upgrading to 20.04 kept the nvidia-435 driver and this bug did not
manifest.
Today I upgraded the
Update: I have reinstalled Kubuntu on the same laptop, but did not click
"Install third-party software for graphics and WiFi hardware and
additional media formats" during installation. I then manually added the
proprietary Nvidia 390 driver after installation. When on prime-select
intel, powertop
I can confirm this bug. I am currently on Kubuntu 20.04, on a Dell XPS
L502x. I am using the 390xx Nvidia driver and the 8086:0116 Intel
driver. My 'nvidia-prime' package is 0.8.14. I checked "Install third-
party software for graphics and WiFi hardware and additional media
formats" during
I suspect this is LP: #1875339 . The ubuntu-drivers-common in the image
doesn't have the fix that version 1:0.8.1.1 (which you are probably
using when installing the drivers manually) has.
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- Install WITH "Install third-party software for graphics and WiFi
hardware and additional media formats"
1. Open "Nvidia X Server Setting"
2. Changing card in "Prime Profiles" from "NVIDIA (Performance Mode)" to "Intel
(Power Saving Mode)"
3. Reboot
4. After start Nvidia card STILL active
Thanks for the comments, the new ones speaking about the installer are a
bit confusing. Could you describe exactly what issue you had and what
are the difference by eabling the driver post installation?
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I also confirm that clean install of Ubuntu without option to install
proprietary driver works OK. This is problem with installer option.
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Title:
I'm sorry for spamming this bug report, I should've make all my tests
before posting anything.
I made a clean install today but, this time, without installing the
proprietary drivers during setup. I installed the Nvidia driver after
the first batch of updates, via the Additional Drivers
I managed to resolve this issue _on my laptop_ by manually editing
/usr/bin/prime-select at lines 161, 162.
Original:
ACTION=="unbind", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de",
ATTR{class}=="0x03", TEST=="power/control", ATTR{power/control}="on"
ACTION=="unbind", SUBSYSTEM=="pci",
(Sorry, I missclicked and couldn't find a way to edit/merge my comments)
After trying with kernel 5.6, it still don't work as intended despite Powertop
reports it now as Good. Power consumption is still high (around 12W at idle),
and "sudo cat
The workaround didn't work after shutting down my laptop.
But, after digging a bit, I found a news on Phoronix (
https://www.phoronix.com/scan.php?page=news_item=Linux-5.5-dGPU-Sound-Bind-Power
) that gave me the idea to try with kernel 5.6. This one, to be more specific:
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-prime (Ubuntu)
Status: New => Confirmed
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Same issue here with an Intel Core i5-7200U and an NVIDIA Geforce GTX
950M. Had to use the same workaround with Powertop and power consumption
went from 12W to 6W after. It kept working after restarting, though.
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