The issue persists on 19.04.
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https://bugs.launchpad.net/bugs/1778011
Title:
SRU: PRIME Power Saving mode draws too much power
To manage notifications about this bug go to:
Is there a way to test this patch with the 418 driver? I have an RTX
2070, which is not supported by the 390 driver, but I'd really like my
battery life back.
When I try to follow the instructions from the report, but replacing 390
with 418, it doesn't work (predictably).
$ sudo apt install
After seeing Alex's post, I tried installing 410.104-0ubuntu0~18.10.1 from
ppa:graphics-drivers.
Using 4.18.0-16-generic kernel.
I find that when I use Intel profile, powertop reports the nvidia card as 0%
active, and the setting in Tunables shows up as Good.
However, /proc/acpi/bbswitch
@Alberto I'm afraid I have to add to the pile of users reporting issues
here. Kernel 4.20.14 with 418.43 drivers. Ubuntu 18.04.2 LTS, on an X1
Extreme.
Using both GDM3 and lightdm, "prime-switch intel" doesn't seem to power
off the nvidia GPU. power seems to go between 25-35W on battery. Using
> * If I understand correctly, the bug does not occur in Ubuntu 18.10.
The user can switch seamlessly between using the Intel or the Nvidia
discrete graphics card. Is this correct?
@jespestana
No, this bug is affecting me on 18.10.
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I am very interested on the status of this bug, since I am considering
which version of Ubuntu to install. I have just 3 questions about it:
* If I understand correctly, the bug does not occur in Ubuntu 18.10. The user
can switch seamlessly between using the Intel or the Nvidia discrete graphics
I observed the same behaviour as Adrian S..
Selecting Intel keeps the Nvidia card powered and the fan spinning.
Installing and using bbswitch manually works. I can't make it working powering
off the card at boot time :( Therefore I have to do it manually every time I
boot my notebook.
MX150,
Should it work on ubuntu 18.10? I try to install 390 driver. After this i run
command
sudo prime-select nvidia and restart system. But GUI no work anymore. In kernel
log i see errors.
My video card is geforce 750M
Jan 11 02:38:17 lblack kernel: [ 121.613281] nvidia: loading out-of-tree
also, we do not rely on bbswitch any more.
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Title:
SRU: PRIME Power Saving mode draws too much power
To manage notifications about
@Dan: I would like to see your /var/log/gpu-manager.log when in power
saving mode.
@Fink: please install powertop, launch it by typing "sudo powertop", and
get to the "device stats" tab, to see what's drawing power. You can
attach a screenshot of that.
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Thinkpad w530. Still looks like the nvidia gpu isn't turning off.
bionic+lightdm+unity7. Log attached.
prime-select query
intel
cat /proc/acpi/bbswitch
:01:00.0 ON
** Attachment added: "gpu-manager.log"
I'm still experiencing high power consumption with GDM3 on Cosmic with
0.8.10 of nvidia-prime. Can provide logs/hardware info if it's helpful,
just let me know what you need. Nouveau or manually disabling the DGPU
in the BIOS behaves as expected.
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@Chris, Thanks for your reply. I know, my point is a bit different. If I
set the bios to discrete only, I get an HDMI signal. If I set the bios
option to hybrid, I can use prime-select to switch between intel and
nvidia but in both cases I cannot use HDMI anymore and in both cases
power
** Attachment added: "prime-select query = intel"
https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1778011/+attachment/5214282/+files/gpu-manager.log
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Sorry wrong file this is the file with the $ prime-select intel
** Attachment added: "gpu-manager.log"
https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1778011/+attachment/5213087/+files/gpu-manager.log
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@albertomilone here is my gpu-manager.log this is a fresh install and
all updates have been made
** Attachment added: "gpu-manager.log"
https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1778011/+attachment/5213084/+files/gpu-manager.log
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@Fernando: we don't support hybrid graphics without using a display
manager, as that would prevent gpu-manager from running at the right
time.
@Michael: I can only assume there was some failure somewhere when
setting the power state of the NVIDIA GPU (the dmesg output might help).
There are
@Alberto: here you go. The card is a GeForce GTX 1050 Ti with Max-Q
Design/PCIe/SSE2 in a Thinkpad X1 Extreme.
** Attachment added: "gpu-manager.log"
https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1778011/+attachment/5211182/+files/gpu-manager.log
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Hi Alberto,
just wanted to let you know that I made a new and clean install of Ubuntu 18.10
and now switching to Intel GPU works from the start.
Thank you so much for your work.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: sddm (Ubuntu Bionic)
Status: New => Confirmed
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** Also affects: sddm (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1778011
Title:
SRU: PRIME Power Saving mode draws too much power
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