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Thread: Ubuntu 20.04 not giving display after laptop i

  1. #1
    Join Date
    Apr 2020

    Ubuntu 20.04 not giving display after laptop i

    I have Ubuntu 20.04 installed on my HP Pavilion G series laptop. I have a problem that whenever I close lid of my laptop or laptop goes to sleep, there is no display after lid is reopened or keys are pressed to wake up the laptop.


    I tried reinstalling the OS but the problem is still there as it is.


    i also tried following steps from this guide . It didnt worked too

    $ sudo gedit /etc/default/grub

    Then adding nouveau.modeset=0 to the line that says GRUB_CMDLINE_LINUX.

    $ sudo update-grub



    When I execute systemctl suspend the LED goes to sleep but no display appears when I press any key.


    $ lspci | grep VGA
    00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
    01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series]


    can anyone help ???

  2. #2
    Join Date
    Mar 2010
    Ubuntu Development Release

    Re: Ubuntu 20.04 not giving display after laptop i

    ??? Wrong boot option for your hardware...

    Please backup and post the output of these, posted within CODE Tags:
    sudo  lshw -c video | grep -e 'product' -e 'driver'
    sudo dmesg | grep -i 'amdgpu\|radeon\|i915'
    sudo lsmod | grep -i 'amd\|radeon\|i915'
    grep . /sys/module/*_idle/parameters/max_cstate 2> /dev/null
    ls /sys/module/*_idle/parameters/max_cstate
    Last edited by MAFoElffen; May 22nd, 2023 at 09:38 AM.

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