Disclaimer: This setup hasn't achieve completely turning off the GPU. The power consumption is perceptibly lower, but the GPU is still active, draining battery power.
Disclaimer 2: This is a guide for myself, I hope it can be useful to you but I just wrote it to remind me the steps I followed. For example, I'm not explaining how to install the NVIDIA drivers in the first place.
-` serranomorante@arch
.o+` -------------------
`ooo/ OS: Arch Linux x86_64
`+oooo: Host: 82B5 Lenovo Legion 5 15ARH05
`+oooooo: Kernel: 6.1.53-1-lts
-+oooooo+: Uptime: 1 hour, 47 mins
`/:-:++oooo+: Packages: 1648 (pacman), 15 (flatpak)
`/++++/+++++++: Shell: bash 5.1.16
`/++++++++++++++: Resolution: 1920x1080
`/+++ooooooooooooo/` DE: Plasma 5.27.8
./ooosssso++osssssso+` WM: i3
.oossssso-````/ossssss+` Theme: [Plasma], Breeze [GTK2/3]
-osssssso. :ssssssso. Icons: [Plasma], breeze-dark [GTK2/3]
:osssssss/ osssso+++. Terminal: zellij
/ossssssss/ +ssssooo/- CPU: AMD Ryzen 7 4800H with Radeon Graphics (16) @ 2.900GHz
`/ossssso+/:- -:/+osssso+- GPU: AMD ATI 06:00.0 Renoir
`+sso+:-` `.-/+oso: GPU: NVIDIA GeForce GTX 1650 Ti Mobile
`++:. `-/+/ Memory: 7017MiB / 31464MiB
.` `/
| Family | Specifics |
|---|---|
| NV160 family (Turing) | NV167 (TU117) GeForce GTX 1650 |
After executing: pacman -Qs | grep nvidia
| Installed | Version |
|---|---|
| local/nvidia-lts | 1:535.104.05-10 |
| local/nvidia-settings | 535.104.05-1 |
| local/nvidia-prime | 1.0-4 |
| local/nvidia-prime-rtd3pm | 1.0-2 |
| local/nvidia-utils | 535.104.05-1 |
| local/opencl-nvidia-525xx | 525.116.04-1 |
When I migrated from Windows to Linux I never expected the tremendous amount of additional knowledge that decision will bring me. While on Windows most of the things "just work" out-of-the-box... on Linux you have to put an extra effort trying to understand the inner working of your tools and system. I prefer this latter approach.
Trying to use NVIDIA on Linux with a Legion 5 AMD laptop can be a challenge. That's why I decided to start with the optimus-manager package and stick to it for several months. Now I finally decided to make the switch to the official driver setup just for the sake of understanding how things work and also remove more dependencies from my system (optimus-manager, optimus-manager-qt, autorandr, etc...)
Not only have I removed optimus-manager and optimus-manager-qt as a dependency but also autorandr. Sometimes is better not having to worry about extra dependencies that are not under your control.
Hybrid mode never worked that well for me when using optimus-manager, I have to admit I never had the time to further test down that issue but I can confirm that it is now solved in my new setup.
Also, optimus-manager gave me some problems in the past after a system upgrade (it was due to a wrong python version) but I can vividly remember it was a nightmare to debug.
TL;DR
- Removed some packages
- Removed the
/etc/X11/xorg.conf.d/90-monitor.conf- Edited the
/usr/share/sddm/scripts/Xsetupscript- Detect monitor plug/unplug
- Installed some packages
- Enable
nvidia-persistenceservice- Add modprobe conf file:
/etc/modprobe.d/nvidia-pm.conf- Extract and add a custom EDID to Xorg
- Add kernel parameters
- Generate CVT with 40 refresh rate (this is very important!)
I removed optimus-manager-qt and optimus-manager using yay -Rns <the package>.
I also removed the /etc/X11/xorg.conf.d/90-monitor.conf file that had this content:
Section "Monitor"
Identifier "HDMI-0"
DisplaySize 3440 1440 # In millimeters
EndSection
Section "Device"
Identifier "HDMI-0"
# Driver "nvidia-lts"
# Option "NoLogo" "True"
# Option "CoolBits" "24"
# Option "TripleBuffer" "True"
# Option "DPI" "100x100"
Option "UseEdidDpi" "False"
# find more options in /usr/share/doc/nvidia/README
EndSectionI cannot remember how that file got in there in the first place. If it was auto-generated it doesn't seems to be the case anymore because is not there again.
When using optimus-manager you must not relay on the sddm script called Xsetup because optimus-manager offers you other scripts to do the same thing. Now that you deleted that package you can go back and edit the /usr/share/sddm/scripts/Xsetup with your preferred content:
#!/bin/sh
# Xsetup - run as root before the login dialog appears
exec >/home/serranomorante/xsetup.out 2>&1
snixembed --fork
internal=$(xrandr | grep "DP.* connected" | cut -d " " -f 1)
external=$(xrandr | grep "HDMI.* connected" | cut -d " " -f 1)
if [[ $external != "" ]]; then
# Turn off internal screen
xrandr --output $internal --off
# Set external monitor as primary
xrandr --output $external --primary --mode 3440x1440 --rate 59.97
# Set a max limit on the graphics gpu
nvidia-smi -lgc 139,300
# Under-clock the graphics memory
nvidia-settings -a "GPUMemoryTransferRateOffset[0x3]=-2000" -c :0
else
xrandr --output $internal --primary --mode 1920x1080 --rate 120.21
fi
# snixembed --fork
# source /home/serranomorante/.config/autorandr/postswitch.d/notify-i3I installed the xf86-video-amdgpu package and this was very important to make everything work correctly.
I created this file as sudo: /etc/modprobe.d/nvidia-pm.conf with the following content:
options nvidia NVreg_RegistryDwords="RMUseSwI2c=1; OverrideMaxPerf=0x1"It was based on this link: https://forums.developer.nvidia.com/t/nvidia-turing-1660-ti-forcing-maximum-power-saving-minimum-performance-mode/145573 but in reality it didn't help a lot I think.
I added the following kernel parameters on /etc/default/grub and then execute sudo grub-mkconfig -o /boot/grub/grub.cfg.
...
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 quiet nvidia_drm.modeset=1 nvidia.NVreg_DynamicPowerManagement=0x01 nvidia.NVreg_RegistryDwords=\"OverrideMaxPerf=1\""
...
nvidia_drm.modeset=1is necessary and should not be deleted
Notice how
OverrideMaxPerfis duplicated with the previous modprobe conf file. Apparently neither worked.
/etc/X11/xorg.conf.d/80-igpu-primary-egpu-offload.conf
Section "Device"
Identifier "Device0"
Driver "modesetting"
BusID "PCI:6:0:0"
# Option "AsyncFlipSecondaries" "true"
# Option "TearFree" "true"
# Option "DRI" "1"
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
BusID "PCI:1:0:0" # Edit according to lspci, translate from hex to decimal.
Option "AllowExternalGpus" "True" # Required for proprietary NVIDIA driver.
Option "Coolbits" "8" # https://us.download.nvidia.com/XFree86/Linux-x86_64/535.104.05/README/index.html
Option "AllowPRIMEDisplayOffloadSink" "true"
Option "ForceFullCompositionPipeline" "true"
# Option "CustomEDID" "HDMI-1-0:/etc/X11/edid.bin"
# Option "UseEDID" "FALSE"
# Option "UseEDIDFreqs" "FALSE"
# Option "UseEDIDDpi" "FALSE"
# Option "ModeValidation" "NoEdidModes"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
# Option "GPUPowerMizerMode" "0"
# Option "ForceFullCompositionPipeline" "on"
# Option "AllowIndirectGLXProtocol" "off"
# Option "TripleBuffer" "on"
EndSectiontdlr: I created a udev rule, a custom script and added a config to my .bashrc file.
This fixes the problem with disconnecting (unplugging) my external monitor when I'm on external-only mode.
/etc/udev/rules.d/95-monitor-hotplug.rules
#Rule for executing commands when an external screen is plugged in.
#Credits go to: http://unix.stackexchange.com/questions/4489/a-tool-for-automatically-applying-randr-configuration-when-external-display-is-p
ACTION=="change", SUBSYSTEM=="drm", RUN+="/usr/local/bin/hotplug_monitor.sh"/usr/local/bin/hotplug_monitor.sh
#!/bin/sh
exec >/home/serranomorante/udev.out 2>&1
echo 'After udev.out'
export XAUTHORITY=/home/serranomorante/.Xauthority
export DISPLAY=:0
internal=$(xrandr | grep "DP.* connected" | cut -d " " -f 1)
external=$(xrandr | grep "HDMI.* connected" | cut -d " " -f 1)
echo 'After xrandr variables'
if [[ $external != "" ]]; then
# Turn off internal screen
xrandr --output $internal --off
# Set external monitor as primary
xrandr --output $external --primary --mode 3440x1440 --rate 59.97
# Set a max limit on the graphics gpu
nvidia-smi -lgc 139,300
# Under-clock the graphics memory
nvidia-settings -a "GPUMemoryTransferRateOffset[0x3]=-2000" -c :0
else
xrandr --output $internal --primary --mode 1920x1080 --rate 120.21
fi
echo 'After conditions'
source /home/serranomorante/.config/autorandr/postswitch.d/notify-i3
echo 'After end'~/.bashrc
# Allow script to be executed by udev
# Context: https://stackoverflow.com/a/14263308
# Thanks: https://unix.stackexchange.com/a/10126
case $DISPLAY:$XAUTHORITY in
:*:?*)
# DISPLAY is set and points to a local display, and XAUTHORITY is
# set, so merge the contents of `$XAUTHORITY` into ~/.Xauthority.
XAUTHORITY=~/.Xauthority xauth merge "$XAUTHORITY";;
esacThis is the output of nvidia-smi now:
Laptop's monitor only
External monitor only
Sun Nov 5 23:26:48 2023
+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 545.29.02 Driver Version: 545.29.02 CUDA Version: 12.3 |
|-----------------------------------------+----------------------+----------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+======================+======================|
| 0 NVIDIA GeForce GTX 1650 Ti Off | 00000000:01:00.0 On | N/A |
| N/A 38C P8 3W / 50W | 94MiB / 4096MiB | 44% Default |
| | | N/A |
+-----------------------------------------+----------------------+----------------------+
+---------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=======================================================================================|
| 0 N/A N/A 821 G /usr/lib/Xorg 93MiB |
+---------------------------------------------------------------------------------------+This is the output of htop filtering "Xorg" now:
External monitor only
[Main] [I/O]
PID USER PRI NI VIRT RES SHR S CPU%▽MEM% TIME+ Command
23996 serranomor 20 0 11904 8064 3568 R 29.6 0.0 0:00.17 htop -F Xorg
821 root 20 0 25.8G 234M 162M S 0.0 0.7 1:40.34 /usr/lib/Xorg
848 root 20 0 25.8G 234M 162M S 0.0 0.7 0:06.83 /usr/lib/Xorg
849 root 39 19 25.8G 234M 162M S 0.0 0.7 0:00.00 /usr/lib/Xorg
850 root 20 0 25.8G 234M 162M S 0.0 0.7 0:00.00 /usr/lib/Xorg
851 root 39 19 25.8G 234M 162M S 0.0 0.7 0:00.00 /usr/lib/Xorg
856 root 20 0 25.8G 234M 162M S 0.0 0.7 0:03.46 /usr/lib/Xorg
857 root 20 0 25.8G 234M 162M S 0.0 0.7 0:00.00 /usr/lib/Xorg
858 root 20 0 25.8G 234M 162M S 0.0 0.7 0:00.00 /usr/lib/Xorg
860 root 20 0 25.8G 234M 162M S 0.0 0.7 0:02.80 /usr/lib/Xorg
1032 root 20 0 25.8G 234M 162M S 0.0 0.7 0:00.00 /usr/lib/Xorg
1051 root 39 19 25.8G 234M 162M S 0.0 0.7 0:00.01 /usr/lib/XorgThis is the output of lspci | grep -e VGA -e 3D
External monitor only
01:00.0 VGA compatible controller: NVIDIA Corporation TU117M [GeForce GTX 1650 Ti Mobile] (rev a1)
06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Renoir (rev c6)This is the output of glxinfo | grep -i "opengl renderer"
External monitor only
OpenGL renderer string: AMD Radeon Graphics (renoir, LLVM 16.0.6, DRM 3.49, 6.1.61-1-lts)This is the output of xrandr --listproviders
External monitor only
Providers: number : 2
Provider 0: id: 0x43 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 4 outputs: 1 associated providers: 1 name:modesetting
Provider 1: id: 0x278 cap: 0x2, Sink Output crtcs: 4 outputs: 4 associated providers: 1 name:NVIDIA-G0- Getting HDMI output to work with switchable graphics with an integrated AMD GPU and discrete Nvidia GPU on Arch Linux (i.e. reverse PRIME) - Has anyone had success with this?
- Configuring reverse PRIME for integrated AMD GPU and discrete Nvidia GPU
- Xorg rendered on iGPU, PRIME render offload to eGPU
- Saving overclocking settings
# Look for the current nvidia? performance level setting
# output: auto
cat /sys/class/drm/card*/device/power_dpm_force_performance_level
# Look for the Mhz of card* (nvidia?)
# output:
# 2: 400Mhz
# 3: 1600Mhz *
cat /sys/class/drm/card*/device/pp_dpm_mclk
# Your xorg logs
# output: ... too large ...
cat /var/log/Xorg.0.log
# Apply your changes in the grub file
sudo grub-mkconfig -o /boot/grub/grub.cfg^C