[solved] nvidia-driver 340.46-2 breaks KDE (and more)

[musca]

Hello,

after latest dist-upgrade my KDE was unusable, because the window-manager kwin did not start. Windows had no decorations and i could not even switch input focus. So i rebootet in multi-user.target (append "3" in grub menu).

I found this in my .xsession-errors

win: error while loading shared libraries: libEGL.so.1: cannot open shared object file: No such file or directory
ksmserver(5833) KSMServer::wmProcessChange: Window manager "kwin" failed to launch

The new nvidia-driver 340.46-2 only recommends libegl1-nvidia

apt-get changelog nvidia-driver
 * nvidia-driver: Recommend libegl1-nvidia and suggest libgles[12]-nvidia.

Solution: after an install everything was okay again

Code Select Expand

apt-get install libegl1-nvidia libgles2-nvidia

[ Edit: for new installs the nvidia-driver misses the nouveau blacklist and fails to update the glx alternative!
See my next posting in this thread. ]

Thanks towo` for your nice recommendations in the siduction-irc support channel.

Cheers, and have fun with siduction!
musca

[mork]

Hi,
this appears not to be a KDE/KWin only issue as my installation with Cinnamon/Mutter has been hit as well...

thanks for the solution!
...fantastic support!

[dibl]

Thanks musca -- great tip!

[musca]

Hello,

even more annoyance!
For new installs the nvidia-driver misses the nouveau blacklist and fails to update the glx alternative!

so for a successful install you need two more steps:

Code Select Expand


apt-get install nvidia-driver libegl1-nvidia libgles[12]-nvidia nvidia-settings
echo -e "\n#manually inserted because nvidia-driver lost the nouveau blacklist\nblacklist nouveau\n" >>  /etc/modprobe.d/nvidia.conf
update-alternatives --config glx

There are 2 choices for the alternative glx (providing /usr/lib/glx).

  Selection    Path                    Priority   Status
------------------------------------------------------------
  0            /usr/lib/nvidia          100       auto mode
* 1            /usr/lib/mesa-diverted   5         manual mode
  2            /usr/lib/nvidia          100       manual mode

Press enter to keep the current choice (*), or type selection number: 0
update-alternatives: using /usr/lib/nvidia to provide /usr/lib/glx (glx) in auto mode
root@sidbox:~# 

greetings
musca

[clubex]

Thanks musca for your quick and thorough explanation.

[Penyelam]

I have the same or a at least a similar problem after system update.
The graphical login screen appeared, but after entering login data just a command window openend in the left upper corner.
I run all the commands mentioned above.
Now when I login as user nothing happens.
When logging in as root, the command window appears as before.

One of the install commands told me I've to configure the NVIDIA driver in xorg.conf but this file does't exist.

Please help
Manfred

[gcp]

Nothing of the above worked for me.
Im getting:

kwin: error while loading shared libraries: libEGL.so.1: cannot open shared object file: No such file or directory
So i got angry and made a link:
ln -s /usr/lib/x86_64-linux-gnu/nvidia/current/libEGL.so.1 /usr/lib/libEGL.so.1
kwin starts now and all seems working.
I will delete the link at better times...
My driver is Nvidia 343.22-0.siduction.1 on x65 multiarch.

[musca]

Hello Peneylam,

the config is in our manual  http://manual.siduction.org/gpu#nvidia or just copy this to your root-shell:

mkdir /etc/X11/xorg.conf.d ; echo -e 'Section "Device"\n\tIdentifier "MyGPU"\n\tDriver "nvidia"\nEndSection\n' > /etc/X11/xorg.conf.d/20-nvidia.conf

It is normal that no /etc/X11/xorg.conf exists. You are allowed to create one (only if needed) and Xorg will respect it. Same goes for conf-snippets in the subdir /etc/X11/xorg.conf.d/ .

greetings
musca

[vayu]

so for a successful install you need two more steps:

Code Select Expand


apt-get install nvidia-driver libegl1-nvidia libgles[12]-nvidia nvidia-settings
echo -e "\n#manually inserted because nvidia-driver lost the nouveau blacklist\nblacklist nouveau\n" >>  /etc/modprobe.d/nvidia.conf
update-alternatives --config glx
greetings
musca

Thanks, I had no nvidia after du, this got me back in. 

[melmarker]

i have similar issues with kwin and the legacy 304xx - but no time to figure this out, so i using openbox and compton right now

[Penyelam]

Hi Musca,
I really appreciate your quick response.
But unfortunately after creating the

/etc/X11/xorg.conf.d/20-nvidia.conf

nothing changed. 
I still get the graphical login screen, 
but after entering my credentials nothing happens.

Kind regards
Manfred

[gcp]

the update to glx-alternative-nvidia (0.5.1) should fix the problem.
see:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=766169
the problem is solved now for me.

[melmarker]

for me too - seems to be solved

[musca]

Hello all,

there is a complete new nvidia 340.46-3 which solved all three issues (libEGL.so.1, blacklist and glx-alternative).
I think we can cosider this thread closed.

greetings
musca

[Penyelam]

Hi guys,
I really appreciate your effort and time you spend to support normal user like me.
But I'm truly sorry,  I've still trouble, please see attachments.
Yesterday I did a mistake in the file name of the "20-nvidia-conf".
Now I don't get a graphic screen.

I followed all instructions but nothing helped.
The only what I haven't done was installing the "nvidia-173xx-driver" beause I don't know the number,
of my "GeForce GT520". How can I find that?
Do you think I have a change to fix that issue or shall I reinstall my system from scratch? 

Regards
Manfred