Kde Desktop will not start once nvidia drivers are configured.

[DaltonCalford]

Clean install of Kubuntu 15.04 on new system.
Installation went well with no issues.
After installation, used the driver manager to switch from the nouveau to the currently recommended proprietary nvidia driver.
It all seemed to install properly, but, after logout/login, the desktop is black, only showing the mouse.

Failsafe login does nothing - you select failsafe, enter your password, click login, just to see the screen flash and you are back at the login screen.

I switched to the console (ctrl-alt-f2) and logged in there without difficulty. I then used apt-get to install the mate desktop environment. Mate desktop environment is working fine with the proprietary nvidia drivers, but, kde/plasma will not even start.

Any suggestions on how I can get kde working with the recommended nvidia proprietary drivers?

[vinnywright]

It starts to look like nVidia ver. 304 does not cause the problems I have with 340 and 346.
I can now edit the Global short cuts and they remain accessible and conky has not crashed.
So far I haven't seen a downside to it.

what card do you have ,,,,,,,,@hear with a

        [FONT=monospace][COLOR=#000000]vinny@vinny-Bonobo-Extreme:~$ inxi -G [/COLOR]
[COLOR=#5454ff][B]Graphics: [/B][/COLOR][COLOR=#b2b2b2] [/COLOR][COLOR=#5454ff][B]Card:[/B][/COLOR][COLOR=#b2b2b2] NVIDIA GK104M [GeForce GTX 860M][/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#5454ff][B]          [/B][/COLOR][COLOR=#b2b2b2] [/COLOR][COLOR=#5454ff][B]Display Server:[/B][/COLOR][COLOR=#b2b2b2] X.Org 1.17.1 [/COLOR][COLOR=#5454ff][B]drivers:[/B][/COLOR][COLOR=#b2b2b2] nvidia (unloaded: fbdev,vesa,nouveau)                                                                           [/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#5454ff][B]          [/B][/COLOR][COLOR=#b2b2b2] [/COLOR][COLOR=#5454ff][B]Resolution:[/B][/COLOR][COLOR=#b2b2b2] 1920x1080@60.0hz                                                                                                                          [/COLOR][COLOR=#000000] [/COLOR]
[COLOR=#5454ff][B]          [/B][/COLOR][COLOR=#b2b2b2] [/COLOR][COLOR=#5454ff][B]GLX Renderer:[/B][/COLOR][COLOR=#b2b2b2] GeForce GTX 860M/PCIe/SSE2 [/COLOR][COLOR=#5454ff][B]GLX Version:[/B][/COLOR][COLOR=#b2b2b2] 4.5.0 NVIDIA 346.59   [/COLOR]
[/FONT]

I have no probs ,,,,,,,but I do not have a hybrid system ,,,,,,,,,,,is the "dkms" package installed on your system ?
and have you installed all the bumblebee and primus stuff?

VINNY

[DaltonCalford]

Nvidia Driver 346.59
Linux-x86_64
GeForce GTX 650Ti card
Dual Display /DVI

Standard install, only change from base install is using the proprietary driver.

[DaltonCalford]

Nvidia Driver 346.59
Linux-x86_64
GeForce GTX 650Ti card
Dual Display /DVI

Standard install, only change from base install is using the proprietary driver.

Switching to Nvidia Driver 304 allows me to log in. I don't know if other issues are created by using the older driver.

[DaltonCalford]

Back to the Nouveau driver after updating to kde plasma 5.3.
The 304 driver/plasma crashes on login before the desktop appears.

Nvidia Proprietary drivers are of no value in kubuntu 15.04

[milcor]

Neither of the two nvidia 'additional drivers' work. Also the latest download from geforce- 349.16 kaput. After three reinstalls, I'm over nvidia. I'm sticking to nouveau until it's fixed