Screen tearing

English Hardware
1

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

What video card or cards???

3

Integrated amd vega 8, from a ryzen 5 3500u processor

4

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

5

Hi
Can you look at adding the following grub kernel command line options via YaST bootloader;


amdgpu.dc=0 amdgpu.ngg=1
6

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

7

Hi
Yes, you can check via;


grep  GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub

Remove the ngg one and try just with amdgpu.dc

8

Doesnt fix it either :frowning:

9

Hi
Then I would remove that on as well…

From the output from the following can you confirm display in use;


xrandr -q

Then try;


xrandr --ouput <display_from above> --set TearFree on
10

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

11

Hi
It would be;


xrandr --ouput HDMI-A-0 --set TearFree on
xrandr --ouput eDP --set TearFree on
12

Which Web Browser are you using?

  • If Firefox then, activate “gfx.webrender.all”.
13

https://forums.opensuse.org/showthread.php/540556-Борьба-с-разрывами-кадров-(тирингом)-на-AMD-графике

https://wiki.archlinux.org/index.php/AMDGPU

Create file


/etc/X11/xorg.conf.d/20-amdgpu.conf

that contains


Section "Device"
     Identifier "AMD" 
     Driver "amdgpu"
     Option "TearFree" "true"
EndSection
14

I got this on both

Invalid MIT-MAGIC-COOKIE-1 keynacho@localhost:~>

15

After introducing the first command it still says unexisting directory

16

Hi
Use touch or/and vi to create the file and add the contents…

17

Well I must say one of the solutions you guys offered has worked, dont know which. Although at first glace I thought neither had succesfully worked (due to what terminal said), the tearing is gone. Thx to all of you