can no longer switch between intel and nvidia [SOLVED]

[jschoonh]

Normally I’m able to solve my own problems. But now I’m stuck. I did try all solutions found on the internet.
I have a Toshiba pro satellite a 50 with dual graphic card. Running mint 20.
Till a few months ago I had the applet in the panel to choose for intel or nvidia graphic card. Applet is disappeared and nvidia x server window is empty.
I did try several drivers,,, start nvidia via etc/modules,,,, a time shift restore,,,,, and another kernel. none was working
Please who is able to give me a hint.

Code: Select all

System:
  Kernel: 5.4.0-40-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: MATE 1.24.0 info: mate-panel wm: marco 1.24.0 dm: LightDM 1.30.0 
  Distro: Linux Mint 20 Ulyana base: Ubuntu 20.04 focal 
Machine:
  Type: Laptop System: TOSHIBA product: SATELLITE PRO A50-C 
  v: PS57DE-00L003DU serial: <filter> Chassis: type: 10 v: Version 1.0 
  serial: <filter> 
  Mobo: TOSHIBA model: SATELLITE PRO A50-C v: Version A0 serial: <filter> 
  UEFI: TOSHIBA v: Version 8.40 date: 11/20/2018 
Battery:
  ID-1: BAT1 charge: 27.6 Wh condition: 27.6/44.4 Wh (62%) volts: 14.8/14.8 
  model: G71C000JM110 type: Li-ion serial: N/A status: Full 
CPU:
  Topology: Dual Core model: Intel Core i5-6200U bits: 64 type: MT MCP 
  arch: Skylake rev: 3 L2 cache: 3072 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 19200 
  Speed: 2711 MHz min/max: 400/2800 MHz Core speeds (MHz): 1: 2702 2: 2726 
  3: 2726 4: 2708 
Graphics:
  Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Toshiba driver: i915 
  v: kernel bus ID: 00:02.0 chip ID: 8086:1916 
  Device-2: NVIDIA GM108M [GeForce 930M] vendor: Toshiba driver: N/A 
  bus ID: 02:00.0 chip ID: 10de:1346 
  Display: x11 server: X.Org 1.20.9 driver: modesetting unloaded: fbdev,vesa 
  compositor: marco v: 1.24.0 resolution: 1920x1080~60Hz 
  OpenGL: renderer: Mesa Intel HD Graphics 520 (SKL GT2) v: 4.6 Mesa 20.2.6 
  direct render: Yes 
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Toshiba 
  driver: snd_hda_intel v: kernel bus ID: 00:1f.3 chip ID: 8086:9d70 
  Sound Server: ALSA v: k5.4.0-40-generic 
Network:
  Device-1: Intel Ethernet I219-V vendor: Toshiba driver: e1000e v: 3.2.6-k 
  port: efa0 bus ID: 00:1f.6 chip ID: 8086:1570 
  IF: enp0s31f6 state: down mac: <filter> 
  Device-2: Intel Wireless 8260 driver: iwlwifi v: kernel port: efa0 
  bus ID: 01:00.0 chip ID: 8086:24f3 
  IF: wlp1s0 state: up mac: <filter> 
Drives:
  Local Storage: total: 931.51 GiB used: 642.04 GiB (68.9%) 
  ID-1: /dev/sda vendor: Toshiba model: MQ01ABD100 size: 931.51 GiB 
  speed: 3.0 Gb/s rotation: 5400 rpm serial: <filter> rev: 4M scheme: GPT 
Partition:
  ID-1: / size: 915.40 GiB used: 642.03 GiB (70.1%) fs: ext4 dev: /dev/sda2 
Sensors:
  System Temperatures: cpu: 37.5 C mobo: N/A 
  Fan Speeds (RPM): N/A 
Repos:
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/additional-repositories.list 
  1: deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main
  2: deb https://dl.winehq.org/wine-builds/ubuntu/ bionic main
  Active apt repos in: /etc/apt/sources.list.d/google-earth-pro.list 
  1: deb [arch=amd64] http://dl.google.com/linux/earth/deb/ stable main
  Active apt repos in: /etc/apt/sources.list.d/graphics-drivers-ppa-focal.list 
  1: deb http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://packages.linuxmint.com ulyana main upstream import backport #id:linuxmint_main
  2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
  3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
  4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
  5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
  6: deb http://archive.canonical.com/ubuntu/ focal partner
  Active apt repos in: /etc/apt/sources.list.d/skype-stable.list 
  1: deb [arch=amd64] https://repo.skype.com/deb stable main
  Active apt repos in: /etc/apt/sources.list.d/teamviewer.list 
  1: deb https://linux.teamviewer.com/deb stable main
Info:
  Processes: 248 Uptime: 23h 12m Memory: 7.71 GiB used: 2.31 GiB (30.0%) 
  Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 7/9 
  Shell: bash v: 5.0.17 running in: mate-terminal inxi: 3.0.38 

[SMG]

Till a few months ago I had the applet in the panel to choose for intel or nvidia graphic card. Applet is disappeared and nvidia x server window is empty.
I did try several drivers,,, start nvidia via etc/modules,,,, a time shift restore,

Timeshift restore did not work? Is Timeshift the reason your inxi output is showing an old kernel? (The latest is 5.4.0-72.)

There are some recent issues with several files which affect the nvidia-prime-applet. The issues do not seem to affect all laptops in the same manner. However, it seems many people have found success with one particular fix. The fourth post in this thread Disappearing Nvidia drivers :Prime the prime suspect? describes a one line code fix (editing line 34) for a know bug with some of the graphics files related to Nvidia.

Nvidia files will need to be installed to complete that fix. You can verify Nvidia files are installed with dpkg -l | grep -i nvidia.

[jschoonh]

Thank you!! it did the job. New kernel (nothing to do with the problem) end the change in the line 34 of /usr/bin/prime-supported in (true). Not a very elegant method but it works well!!