Cannot switch to nouveau

[caho]

Hi,

I want to switch from nvidia340.x to nouveau. Perhaps I do something wrong ?!?

Graphics:  Device-1: NVIDIA G86M [Quadro NVS 140M] driver: nvidia v: 340.108 
           Display: x11 server: X.Org 1.20.10 driver: nvidia resolution: 1440x900~60Hz 
           OpenGL: renderer: Quadro NVS 140M/PCIe/SSE2 v: 3.3.0 NVIDIA 340.108 

First I used “Auto Install Open-Souce Driver” in the Plasma - hardwareconfig.

That works without errors.
After a reboot I saw the same result:

Graphics:  Device-1: NVIDIA G86M [Quadro NVS 140M] driver: nvidia v: 340.108 
           Display: x11 server: X.Org 1.20.10 driver: nvidia resolution: 1440x900~60Hz 
           OpenGL: renderer: Quadro NVS 140M/PCIe/SSE2 v: 3.3.0 NVIDIA 340.108 

As second I stopped plasma and run from the console
sudo mhwd -f -a pci free 0300

That works without errors but after a reboot I am running with nvidia340 again

Graphics:  Device-1: NVIDIA G86M [Quadro NVS 140M] driver: nvidia v: 340.108 
           Display: x11 server: X.Org 1.20.10 driver: nvidia resolution: 1440x900~60Hz 
           OpenGL: renderer: Quadro NVS 140M/PCIe/SSE2 v: 3.3.0 NVIDIA 340.108 

First of all I read the manjaro - wiki but I dont´t know, what is wrong with me.

System:    Kernel: 5.4.80-2-MANJARO x86_64 bits: 64 Desktop: KDE Plasma 5.20.4 Distro: Manjaro Linux 
Machine:   Type: Laptop System: LENOVO product: 766511G v: ThinkPad T61 serial: <filter> 
           Mobo: LENOVO model: 766511G serial: <filter> BIOS: LENOVO v: 7LETC1WW (2.21 ) date: 07/01/2008 
Battery:   ID-1: BAT0 charge: 33.2 Wh condition: 48.0/71.3 Wh (67%) 
CPU:       Info: Dual Core model: Intel Core2 Duo T7100 bits: 64 type: MCP L2 cache: 2048 KiB 
           Speed: 798 MHz min/max: 800/1801 MHz Core speeds (MHz): 1: 834 2: 1058 
Graphics:  Device-1: NVIDIA G86M [Quadro NVS 140M] driver: nvidia v: 340.108 
           Display: x11 server: X.Org 1.20.10 driver: nvidia resolution: 1440x900~60Hz 
           OpenGL: renderer: Quadro NVS 140M/PCIe/SSE2 v: 3.3.0 NVIDIA 340.108 
Audio:     Device-1: Intel 82801H HD Audio driver: snd_hda_intel 
           Sound Server: ALSA v: k5.4.80-2-MANJARO 
Network:   Device-1: Intel 82566MM Gigabit Network driver: e1000e 
           IF: enp0s25 state: down mac: <filter> 
           Device-2: Intel PRO/Wireless 4965 AG or AGN [Kedron] Network driver: iwl4965 
           IF: wls3 state: up mac: <filter> 
Drives:    Local Storage: total: 223.57 GiB used: 26.29 GiB (11.8%) 
           ID-1: /dev/sda vendor: SanDisk model: SDSSDHII240G size: 223.57 GiB 
Partition: ID-1: / size: 211.70 GiB used: 26.29 GiB (12.4%) fs: ext4 dev: /dev/sda1 
Swap:      ID-1: swap-1 type: partition size: 8.36 GiB used: 1.5 MiB (0.0%) dev: /dev/sda2 
Sensors:   System Temperatures: cpu: 56.0 C mobo: 55.0 C gpu: nvidia temp: 68 C 
           Fan Speeds (RPM): fan-1: 0 
Info:      Processes: 177 Uptime: 16m Memory: 3.78 GiB used: 2.18 GiB (57.7%) Shell: Bash inxi: 3.1.08 

Could everyone help me

Thanks and regards
caho

[Paradox]

Did you properly deleted old drivers?
If you are using GUI you can just right-click on drivers and click ununstall.

[caho]

No, @Paradox,

I didn`t delete drivers.

Which drivers should I delete?
Dou you mean the nvidia340?

regards
caho

[caho]

Now, I deletet the .340 drivers with pamac.

After reboot system has a blackscreen. I logged in into tty and restored my system with timeshift.

What should I do to use the nouveau - driver?

regards
caho

[Paradox]

Just use GUI - Hardwarekonfiguration. Right-Click and uninstall.

[caho]

OK, now I checked it

After reboot the system run with the nouveau - driver

Graphics:  Device-1: NVIDIA G86M [Quadro NVS 140M] driver: nouveau v: kernel 
           Display: x11 server: X.Org 1.20.10 driver: nouveau unloaded: modesetting resolution: 1440x900~60Hz 
           OpenGL: renderer: NV86 v: 3.3 Mesa 20.2.3 

Thank you very much for your support, @Paradox
regards
caho

[Paradox]

Your welcome @caho