Questions[bbswitch](ubuntu)

Laptop: Acer Predator PH315-52 
OS : UBUNTU 18.04.2 LTS 
Nvidia Driver : 418.87 
Kernel : 5.0.0-37-generic 
Processors : Intel UHD 630 and Nvidia 1660 Ti 
bbswitch version: 0.8-4ubuntu1 
bumblebee version: 3.2.1+git20181231-103~bionicppa1

$ grep bumblebeed /var/log/syslog

Output:

Predator bumblebeed[3353]: Received Terminated signal.
Predator bumblebeed[3353]: Unable to disable discrete card.
Predator bumblebeed[7981]: /usr/sbin/bumblebeed started
Predator bumblebeed[7981]: Unable to disable discrete card.

$ lsmod | grep -i nouveau

Output: (Blank output) ## showing nouveau is not loaded

$ lsmod | grep nvidia

Output:

i2c_nvidia_gpu ## Handled it via "$ modprobe -r i2c_nvidia_gpu" but the problem still remains ## and the outputs of all too remains the same ## Blank output of "lsmod | grep nvidia" after unloading it using ablove command

$ cat /proc/acpi/bbswitch

Ouput:0000:01:00.0 ON

$ sudo tee /proc/acpi/bbswitch <<<**OFF**

Output:OFF

$ dmesg | grep bbswitch


[ 6.659422] bbswitch: loading out-of-tree module taints kernel.
[ 6.660407] bbswitch: module verification failed: signature and/or required key missing - tainting kernel
[ 6.661578] bbswitch: version 0.8
[ 6.662580] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0
[ 6.663575] bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP
[ 6.665690] bbswitch: detected an Optimus _DSM function
[ 6.667873] bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on
[ 18.818552] bbswitch: disabling discrete graphics
[ 114.697607] bbswitch: disabling discrete graphics
[ 114.697852] acpi_thermal_rel intel_pch_thermal wmi_bmof acer_wmi 
acer_wireless intel_lpss mac_hid soundcore sparse_keymap acpi_pad sch_fq_codel parport_pc ppdev lp parport bbswitch(OE) ip_tables x_tables autofs4 hid_generic usbhid i915 kvmgt vfio_mdev mdev vfio_iommu_type1 vfio kvm irqbypass i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm alx ahci mdio i2c_hid libahci i2c_nvidia_gpu hid wmi video pinctrl_cannonlake pinctrl_intel
[ 114.697897] bbswitch_off+0xbb/0x230 [bbswitch]
[ 114.697898] bbswitch_proc_write+0xb5/0xcc [bbswitch]
[ 446.444365] bbswitch: disabling discrete graphics

$ cat /proc/acpi/bbswitch

Ouput:0000:01:00.0 ON #############This is the problem,it should display OFF

$ optirun --status

Output: Bumblebee status: Ready (). X inactive. Discrete video card is on.

Also video LNXVIDEO:00: Failed to change power state to D3hot

Installation steps taken:

$ sudo apt update

Installed Cuda 10.1 .deb package from nvidia website and driver 418.87 was automatically   installed with the package(also prime-select was also installed with it)

$ sudo nano /etc/default/grub

changed - GRUB_CMDLINE_LINUX_DEFAULT='pcie_port_pm=off acpi_backlight=none acpi_osi=Linux acpi_osi=! acpi_osi=\"Windows 2009\"'

$ sudo add-apt-repository ppa:bumblebee/testing

$ sudo apt update

Installed synaptics package manager and then through it installed bumblebee,bumblebee-nvidia   and primus(and all others which by default get installed with them like bbswitch)

$ sudo nano /etc/bumblebee/bumblebee.conf

 Changed 'Driver=' to 'Driver=nvidia'
  Bridge=primus
  KernelDriver=nvidia
  PMMethod=bbswitch
  LibraryPath=/usr/lib/x86_64-linux-gnu:/usr/lib/i386-linux-gnu
  XorgModulePath=/usr/lib/x86_64-linux-gnu/xorg,/usr/lib/xorg/modules
  XorgConfFile=/etc/bumblebee/xorg.conf.nvidia

$ sudo nano /etc/modprobe.d/bumblebee.conf

 blacklist nvidia
  blacklist nvidia-current
  blacklist nvidia-current-updates
  blacklist nvidia_drm
  blacklist nvidia_uvm
  blacklist nvidia_modeset
  blacklist nvidiafb
  blacklist i2c-nvidia-gpu
  blacklist i2c-nvidia-gpu
  blacklist nouveau
  blacklist nvidia-current

$ sudo nano /etc/modules-load.d/modules.conf

added following:

   i915

   bbswitch

selected intel as prime profile

Restarted laptop and the above stated problems kicked in.

Also upon startup grep bumblebeed /var/log/syslog shows- Predator bumblebeed[864]: /usr/sbin/bumblebeed started Predator bumblebeed[864]: Unable to disable discrete card.

Please help me solve the problem.

As everyone knows, nvidia drivers don't work well on Ubuntu. I deactivated my RTX 2060 nvidia card on my Lenovo Legion Y540 with Ubuntu 18.04 LTS (keeping its use on Windows for gaming) doing the following (from there):

I checked Enable hybrid graphics in my BIOS; then,

sudo aptitude install bbswitch-dkms

and

sudo nvim /etc/modules

added bbswitch and reloaded.

I then switched to intel with:

sudo prime-select intel

And turned off nvidia card for lower consumption with

sudo tee /proc/acpi/bbswitch <<<OFF

My consumption went from like 40W to 11W, which is great, but now xrandr gives

eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 340mm x 190mm
   1920x1080    144.00*+  59.96    59.93  
   1680x1050     84.94    74.89    69.88    59.95    59.88  
   1600x1024     60.17  
   1400x1050     85.00    74.76    70.00    59.98  
   1600x900     144.00    59.95    59.82  
   1280x1024     85.02    75.02    60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      85.00    60.00  
   1368x768     144.00    59.88    59.85  
   1360x768      59.80    59.96  
   1280x800      59.81    59.91  
   1152x864     100.00    85.06    85.00    75.00    75.00    70.00    60.00  
   1280x720     144.00    59.86    59.74  
   1024x768      85.00    75.03    70.07    60.00  
   1024x768i     86.96  
   1024x576     144.00    59.90    59.82  
   832x624       74.55  
   960x540      144.00    59.63    59.82  
   800x600       85.14    72.19    75.00    60.32    56.25  
   864x486      144.00    59.92    59.57  
   640x480       85.01    72.81    75.00    59.94  
   720x405      144.00    59.51    58.99  
   720x400       85.04  
   640x400       85.08  
   640x360      144.00    59.84    59.32  
   640x350       85.08  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

I just tried to plug in an HDMI monitor, and now it turned on the nvidia card again (while prime-select query still gives intel as a result), my power consumption is at 43W. I have to run sudo tee /proc/acpi/bbswitch <<<OFF again.

Does anyone know how to deactivate the nvidia card, yet still be able to connect external monitors? Maybe a USB-c adapter could do the trick if there is no other way?

lspci output:

lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Device 3e9b
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f11 (rev a1)

/etc/modules includes

bbswitch load_state=0

Every time, bbswitch isn't loaded, and I have to manually:

sudo modprobe bbswitch

Then run bbswitch command to toggle graphics card.

Why isn't it respecting load_state=0?

I have Nvidia Tesla K20 GPU to use for Tensorflow. When I install Nvidia driver version 375 or 384, after restart it shows

. bbswitch: No suitable _DSM call found.
. bbswitch: No suitable _DSM call found.
. bbswitch: No suitable _DSM call found.
. bbswitch: No suitable _DSM call found.
. bbswitch: No suitable _DSM call found.
............... indefinitely .......

I use recovery mode to uninstall driver and everything goes back to normal. Same thing happens for both Ubuntu 16.04 and 14.04.

If I use command

sudo apt-get install nvidia-current

it installs driver version 304 and it works but Tensorflow requires CUDA 8.0 and it requires driver version at least 361. Any driver newer than version 304 causes the same problem.

I've upgraded to 12.04 and I had to switch from Ironhide to the latest version of Bumblebee.

Now, when I try to run bumblebeed, I get this error:

FATAL: Module bbswitch not found.
[ERROR]Module bbswitch could not be loaded (timeout?)
[WARN]No switching method available. The dedicated card will always be on.

I don't really need to use the secondary VGA on Kubuntu, so I would like to find a way to definitely shut the discrete GPU down and avoid wasting battery. I can't disable it from the BIOS because I use it on Windows. My card is an nvidia 540M.