120Hz for Linux?

Discussion in 'Parallels Desktop for Apple Silicon (M1) Mac' started by AwlsomeAlex, Nov 16, 2021.

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  1. AwlsomeAlex

    AwlsomeAlex Bit Poster

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    The new M1 Pro/Max devices include a 120Hz screen. It seems to be working well with Windows VMs, but has anyone gotten it working with Linux VMs?
     
  2. AwlsomeAlex

    AwlsomeAlex Bit Poster

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    Managed to figure it out in case anyone else was trying to...
    This is a fullscreen VM on a 16 inch M1 Pro running Ubuntu 20.04 in Xorg. Also works in CentOS 9 Stream.
    $ cvt 4112 2572 120
    $ xrandr --newmode (everything after "Modeline" from above command)
    $ xrandr --addmode Virtual-1 4112x2572_120.00
    $ xrandr --output Virtual-1 --mode 4112x2572_120.00
     
  3. YousufS

    YousufS Bit Poster

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    2
    The 1st command worked for me but not the 2nd one. This was the output:

    parallels@ubuntu-linux-20-04-desktop:~$ cvt 4112 2572 120
    # 4112x2572 119.99 Hz (CVT) hsync: 330.80 kHz; pclk: 1916.00 MHz
    Modeline "4112x2572_120.00" 1916.00 4112 4496 4952 5792 2572 2575 2585 2757 -hsync +vsync
    parallels@ubuntu-linux-20-04-desktop:~$ xrandr --newmode
    xrandr: failed to parse '(null)' as a mode specification
    Try 'xrandr --help' for more information.
    parallels@ubuntu-linux-20-04-desktop:~$
     

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