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Thread: Screen tearing

  1. #1
    Join Date
    Jul 2020
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    28

    Default Screen tearing

    So my laptop has noticeable tearing when browsing, watching a video or doing anything relatively fast or with movement.

    My display stats are these

    [Created at monitor.125]
    Unique ID: rdCR.aVBCCfRz9V8
    Parent ID: Ddhb.+j1EjZDys7D
    Hardware Class: monitor
    Model: "N156HGA-EA3 LCD Monitor"
    Vendor: CMN "N156HGA-EA3"
    Device: eisa 0x15f5
    Resolution: 1920x1080@60Hz
    Size: 344x193 mm
    Year of Manufacture: 2017
    Week of Manufacture: 15
    Detailed Timings #0:
    Resolution: 1920x1080
    Horizontal: 1920 2000 2060 2250 (+80 +140 +330) -hsync
    Vertical: 1080 1086 1094 1132 (+6 +14 +52) -vsync
    Frequencies: 152.84 MHz, 67.93 kHz, 60.01 Hz
    Config Status: cfg=new, avail=yes, need=no, active=unknown
    Attached to: #39 (VGA compatible controller)

    Yet on kde its configured as 1080p 60hz, so i dont really know why i get this

  2. #2
    Join Date
    Nov 2009
    Location
    West Virginia Sector 13
    Posts
    15,972

    Default Re: Screen tearing

    What video card or cards???

  3. #3
    Join Date
    Jul 2020
    Posts
    28

    Default Re: Screen tearing

    Quote Originally Posted by gogalthorp View Post
    What video card or cards???
    Integrated amd vega 8, from a ryzen 5 3500u processor

  4. #4
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    Jul 2020
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    Default Re: Screen tearing

    Also, I tried now using an external monitor and im having the same issue, so doesnt look like its something about the monitor

  5. #5
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    Default Re: Screen tearing

    Quote Originally Posted by Nach View Post
    Also, I tried now using an external monitor and im having the same issue, so doesnt look like its something about the monitor
    Hi
    Can you look at adding the following grub kernel command line options via YaST bootloader;

    Code:
    amdgpu.dc=0 amdgpu.ngg=1
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  6. #6
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    Jul 2020
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    Default Re: Screen tearing

    Tried it, still tearing, is it normal to get no reply from the command?

  7. #7
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    Default Re: Screen tearing

    Quote Originally Posted by Nach View Post
    Tried it, still tearing, is it normal to get no reply from the command?
    Hi
    Yes, you can check via;

    Code:
    grep  GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub
    Remove the ngg one and try just with amdgpu.dc
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  8. #8
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    Default Re: Screen tearing

    Quote Originally Posted by malcolmlewis View Post
    Hi
    Yes, you can check via;

    Code:
    grep  GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub
    Remove the ngg one and try just with amdgpu.dc
    Doesnt fix it either

  9. #9
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    Default Re: Screen tearing

    Quote Originally Posted by Nach View Post
    Doesnt fix it either
    Hi
    Then I would remove that on as well...

    From the output from the following can you confirm display in use;
    Code:
    xrandr -q
    Then try;
    Code:
    xrandr --ouput <display_from above> --set TearFree on
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  10. #10
    Join Date
    Jul 2020
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    Default Re: Screen tearing

    It says unexisting directory

    xrandr -q
    No protocol specified
    Screen 0: minimum 320 x 200, current 1600 x 900, maximum 16384 x 16384
    HDMI-A-0 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 434mm x 236mm
    1600x900 59.98*+
    1280x1024 75.02 60.02
    1440x900 59.98
    1280x800 59.98
    1152x864 75.00
    1280x720 59.98
    1024x768 75.03 60.00
    800x600 75.00 60.32
    640x480 75.00 59.94
    720x400 70.08
    eDP connected (normal left inverted right x axis y axis)
    1920x1080 60.01 +
    1680x1050 60.01
    1280x1024 60.01
    1440x900 60.01
    1280x800 60.01
    1280x720 60.01
    1024x768 60.01
    800x600 60.01
    640x480 60.01
    nacho@nacho-Aspire-A515-43:~> xrandr --ouput <display_from above> --set TearFree on
    bash: display_from: No existe el fichero o el directorio
    nacho@nacho-Aspire-A515-43:~> xrandr --ouput <eDP connected> --set TearFree on
    bash: eDP: No existe el fichero o el directorio

    The 1600x900 screen is an external monitor, but im getting tearing as well

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