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Thread: Ubuntu 20.04 screen freezes after ~5 minutes of uptime?

  1. #1
    Join Date
    May 2020

    Question Ubuntu 20.04 screen freezes after ~5 minutes of uptime?

    I dual boot Ubuntu and Windows and am trying to use a dual-monitor setup, with a monitor being connected to a HDMI port in my laptop.

    To use the second monitor, I am trying to use Nvidia's proprietary drivers, since that is the only way my second monitor gets recognized.

    Now, every time I install ANY Nvidia driver (tried 440, 435, 430, 390), through any means (Software & Updates -> Additional drivers; as well as manually - adding the graphics ppa repository) in Ubuntu, the system's view completely freezes after a few minutes of being booted, requiring a hard-restart.

    If any music is currently playing, it continues playing. I just cannot move my mouse or interact with the system, since the view of the system is completely frozen. This happens consistently after every boot.

    The way I counteract this this is I boot up and quickly go to Software & Updates -> Additional drivers and revert back to default Nouveau graphics drivers. When reverted and rebooted, the system does not freeze anymore, but I cannot use my second monitor this way, because Nouveau does not seem to recognize the second monitor.

    Also, I had to do "nomodeset" in GRUB settings, otherwise the system gets stuck on the login screen.

    This used to happen with Ubuntu 18.04 as well, that is why upgraded to 20.04, thinking it might solve this problem.

    System specs:
    +Laptop: HP Zbook Studio G5 x360
    +Video card: Nvidia Quadro P1000

    I am looking for a way to get the second monitor working without the system freezing. I am not sure whether this is possible only with Nvidia drivers, or maybe there is some other way.
    Any and all help is appreciated, since I've been stuck on this problem for quite some time. Also, please tell me if I can provide any more information about this issue.

  2. #2
    Join Date
    May 2020

    Re: Ubuntu 20.04 screen freezes after ~5 minutes of uptime?

    Answered by generix on Nvidia forums:

    Known bios issue of that notebook. Please use kernel parameter

    Adding this kernel parameter in grub `GRUB_CMDLINE_LINUX_DEFAULT="intel_idle.max_cstate =1"` solved the freezing issue.

  3. #3
    Join Date
    Jan 2021

    Re: Ubuntu 20.04 screen freezes after ~5 minutes of uptime?

    Did adding this kernel parameter fix your freeze problem? I have had serious problems with this and I also have a HP Zbook.

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