Lenovo Z50-70




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NameLenovo Z50-70
Screen15.6 FHD
Optical DriveDVD-RW
GraphicsIntel Onboard + 2GB DDR3 NVIDIA GeForce GT820M acceleration
Network10/100/100 Base-T ethernet + 802.11 b / g /n wireless

Linux Compatibility

Optical DriveYes
Graphics ChipPartialSee below.
VGA OutYes
HDMI PortYes
Bulti-in MicrophoneYes
Headphone JackYes
Microphone JackNot TestedDon't think it has this.
EthernetNot Tested
BluetoothNot Tested
WWANNot TestedDon't think it has this.
ESATANot TestedDon't think it has this.
Card ReaderNot Tested
ExpressCard SlotNot Tested
Fingerprint ReaderNot TestedDon't think it has this.
Smart Card ReaderNot TestedDon't think it has this.
Docking StationNot Tested
Touch PadPartialFor (K)ubuntu 14.04 see https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1166442/comments/178 - there still seem to be some issues after applying this fix (left mouse acting as right)
Fingerprint ReaderNot TestedDon't think it has this.
Suspend/ResumePartialGenerally works. Sometimes freezes after resume, but may be because using proprietary nvidia drivers. Also nvidia driver loses contact with its GPU after resume sometimes. Could not use hibernate.


You may have better luck with newer versions of the OS.

NVIDIA Graphics on Kubuntu 14.04:
* Works out-of-the-box with Nouveau but have not tested advanced capabilities.
* Driver manager proposes nvidia-331 and nvidia-331-updates which work. But these do not support CUDA 7. Also, with my current kernel (3.19, which is being used because of the Intel issues … see below … fails to resume from suspend)
* I could not get xorg-edger's 346 package working.
* Installing the drivers from NVIDIA's website worked by installing the CUDA 7 package, each of its 3 sub-packages installed independently (using the –extract option on the .run file), and CUDA 7 was enabled/ But I lose the Nvidia device on resume from suspend (but at least the computer resumes), and have not yet managed to get nvidia-settings working (with nvidia-331-updates there was an option to switch the nvidia on or off). Note, the CUDA compute capabilities on this device is 2.1.

Intel 4400 graphics:
* Some issues with xrandr (also 14.04). Upgrading the kernel to mainline helped a lot with the xrandr issues. Still cannot use some options, like -transform. I used this Ubuntu mainline kernel updater script and so far no problems: https://github.com/GM-Script-Writer-62850/Ubuntu-Mainline-Kernel-Updater


Happily, on Ubuntu 14.04 some things have changed and now the following commands enable the NVidia card with Nvidia Prime to enable Intel/NVidia switching between logins (but unfortunately when NVidia is enabled, resume from suspend does not work properly - it gets stuck after resume: I have not yet figured the cause). Note that the Intel card is still used for arranging outputs via xrandr etc. (the Nvidia card sees just one wide output).

  sudo add-apt-repository ppa:graphics-drivers/ppa
  sudo apt-get update
  sudo apt-get install nvidia-355 nvidia-prime
  sudo reboot

If installing CUDA 7.5 the recommended version is nvidia-352. Getting CUDA from here should obviate the above step:


The .deb downloaded sets up the appropriate respositories and all necessary drivers are installed when you install cuda:

  sudo apt-get install cuda


On (K)ubuntu 14.04 works out of the box but:
* Some issues utilising the NVIDIA accelerator.
* Some issues with xrandr and the Intel driver, seemingly mostly alleviated by installing Ubuntu mainline kernel.
* Some issues with the touchpad, seemingly mostly alleviated by installing a patched kernel module available from the bug report page.


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lenovo_ideapad_z5070.txt · Last modified: 2016/03/11 07:07 by damienjadeduff
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