[Solved] Freezes with every Nvidia post 334.21 drivers

My desktop freeze with every Nvidia post 334.21 drivers. I tried the lastest drivers from this ppa yesterday and after a days of use the desktop freeze. I had to reboot and after that it freeze after a few seconds. I had to go back to 331 drivers from repo.

Some other people have this kind of issue and report it on Nvidia forum but nothing :
https://devtalk.nvidia.com/default/topic/765318/linux/compositing-related-freezes-on-kde-with-every-post-334-21-driver/?offset=9#4452302

Is there a bug on Nvidia drivers or somewhere in KDE ?

Thank you.

Ps. I also open a topic here : https://forum.kde.org/viewtopic.php?f=66&t=124844

Do you happen to have a hybrid system (Intel/Nvidia)?

My PC isn’t a hybrid system, I just have a Nvidia 430GT that works perfectly with driver 331 from repo.

The 334.21 driver dosn’t seem to available in the PPA you listed any longer:

Have you tried the new 346.35-1 driver from that PPA yet?
https://launchpad.net/~mamarley/+archive/ubuntu/nvidia

Here is the Nvidia driver page for 346.35:
Note: http://www.nvidia.com/download/driverResults.aspx/81252/en-us

I installed the latest driver so it’s the version 346.35. I just have this problem since 334.21 drivers.
I have read that it’s not recommended to install drivers from official Nvidia installer.

Yea, I already removed that part. :slight_smile:

You wouldn’t be using multiple monitors across more than one GPU would you?

You may also need a newer version of mesa for use with newer Nvidia drivers.

I have 2 monitors (a monitor and a TV) but I use only one at a time.
I try the drivers 346.35 from edgers ppa to see if there is a difference compared to mamarley ppa.

Yes, please do.
However, using this guide seems to yield the best results:
http://ubuntuhandbook.org/index.php/2015/01/install-nvidia-346-35-ubuntu-1404/

OK I test the 346.35 x64 drivers from edgers ppa for a week and no freeze.
So I think there is a problem with mamarley ppa.

Yep, it would appear so.
I’m glad this worked for ya. :slight_smile:

I think I speaked too fast. Today I had a freeze with Nvidia drivers 346.65 from edgers ppa.

I don’t know if it’s a problem with the drivers or ppa or kde…

It could also be the graphics card itself.

I don’t think so, it works perfectly with drivers from official repo.

OK then I would just use those for now until these are made available officially from Ubuntu. The use of 3rd party repositories are always considered to be use at your own risk as. the packages in these repositories can not be vetted or officially supported.

Yes but if there is a bug somewhere in drivers or kde or netrunner it would have been nice to find it to prevent a bug in future release.

Maybe it’s because I installed hardware enablement stack yesterday, I don’t know… But you are right I will stick to official drivers :wink:

Well, if there is a bug in one of these then either upstream or Ubuntu would have already found and fixed the issue before they make into the official repositories.

BTW, what did you mean by “I installed hardware enablement stack yesterday”?

https://wiki.ubuntu.com/Kernel/LTSEnablementStack

Oh, so it’s kind of a backports repository for drivers, nice.

There isn’t new Nvidia drivers with hardware enablement stack but the version 331.113 from official repo works perfectly fine.

Did you also enable the Kubuntu backports repository to receive their KDE SC 4.14.2 updates?

I realize that KDE SC 4.14.2 isn’t the latest release from the KDE community but it is the latest version released for Kubuntu 14.04 LTS by the Kubuntu developers.