[SOLVED] Screen Tearing and flickering

he15en6erg · 2018-10-01 11:29:43

Using Intel Corporation Skylake GT2 [HD Graphics 520].
I'm experiencing this problem since day one of arch installation (NO DUAL BOOT). I installed compton, it didn't work. I even removed xf86-video-intel which made no change. I use both KDE Plasma and i3 as well with display server Xorg and display manager sddm. Can this be fixed by altering configs or should I just switch back to windows? Help.

Last edited by he15en6erg (2018-10-10 12:26:10)

V1del · 2018-10-01 12:10:41

needs more details/better scoped, what exactly are you running NOW? Post a xorg.log and

glxinfo | grep OpenGL
qdbus org.kde.KWin /KWin org.kde.KWin.supportInformation #If on KDE

jonno2002 · 2018-10-02 00:43:31

im running the git drivers from the AUR for all my machines both intel and ati, had tearing issues with xf86-video-intel and crashing/stability issues with xf86-video-ati, now using xf86-video-ati-git and xf86-video-intel-git and all my machines seem to be fine.... for now

EDIT: sorry forgot to mention to make sure you have the:

Option      "TearFree" "true"

in your xorg.conf.d 20-intel.conf file

https://wiki.archlinux.org/index.php/In … free_video

Last edited by jonno2002 (2018-10-02 00:49:55)

he15en6erg · 2018-10-02 05:22:32

jonno2002 wrote:

im running the git drivers from the AUR for all my machines both intel and ati, had tearing issues with xf86-video-intel and crashing/stability issues with xf86-video-ati, now using xf86-video-ati-git and xf86-video-intel-git and all my machines seem to be fine.... for now
EDIT: sorry forgot to mention to make sure you have the:
Option      "TearFree" "true"
in your xorg.conf.d 20-intel.conf file
https://wiki.archlinux.org/index.php/In … free_video

Installed xf86-video-intel-git and created the 20-intel.conf as asked. Now, the flickering is not completely gone but less obvious (tearing persists, a lot), but that is still disturbing as I use the computer to watch videos very frequently. What do I do ?

Last edited by he15en6erg (2018-10-02 05:25:28)

he15en6erg · 2018-10-02 06:01:14

V1del wrote:

needs more details/better scoped, what exactly are you running NOW? Post a xorg.log and
glxinfo | grep OpenGL
qdbus org.kde.KWin /KWin org.kde.KWin.supportInformation #If on KDE

Output :

$ glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) 
OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.1.7
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 18.1.7
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 18.1.7
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:

qdbus org.kde.KWin /KWin org.kde.KWin.supportInformation
/var/log/Xorg.0.log file.

V1del · 2018-10-02 07:38:59

Compositing
===========
Compositing is not active

Well yes... Go to

kcmshell5 kwincompositing

and enable the compositor. (And FWIW if that works properly the modesetting driver is known to have less issues than xf86-video-intel on KDE, if you notice any graphics issues beyond the screen tearing try to remove it and that config file.

Last edited by V1del (2018-10-02 07:40:11)

he15en6erg · 2018-10-02 10:40:26

V1del wrote:

Compositing
===========
Compositing is not active
Well yes... Go to
kcmshell5 kwincompositing
and enable the compositor. (And FWIW if that works properly the modesetting driver is known to have less issues than xf86-video-intel on KDE, if you notice any graphics issues beyond the screen tearing try to remove it and that config file.

Did that. Tried with and without xf86-video-intel-git, still no luck. What it did is just added animation effects to windows opening/closing. Any other methods ?

V1del · 2018-10-02 12:32:22

Which tearing prevention/ GL version did you set? Repost the output of that command after enabling compositing.

he15en6erg · 2018-10-03 04:57:45

V1del wrote:

Which tearing prevention/ GL version did you set? Repost the output of that command after enabling compositing.

Here it is. OpenGL version string: 3.0 Mesa 18.1.7.

Last edited by he15en6erg (2018-10-03 05:00:38)

V1del · 2018-10-03 06:24:36

In general it seems your system is quite dated, many things have much newer versions available. You will want to run a system update. Also where do you see the tearing? Is video/firefox/youtube the only obvious spot left? Have you seen https://wiki.archlinux.org/index.php/Fi … creen_mode ?

he15en6erg · 2018-10-03 07:22:42

V1del wrote:

Also where do you see the tearing? Is video/firefox/youtube the only obvious spot left? Have you seen https://wiki.archlinux.org/index.php/Fi … creen_mode ?

Yes, I see tearing in firefox, scrolling and youtube, and VLC too. You suggest system update or particular packages ?

V1del · 2018-10-03 08:08:33

Particular packages is unsupported, update your whole system.

he15en6erg · 2018-10-03 16:51:53

V1del wrote:

update your whole system.

The problem persists updated the system

$ glxinfo | grep "OpenGL version"
OpenGL version string: 3.0 Mesa 18.2.1

Lone_Wolf · 2018-10-03 21:30:50

from the log linked in #9 :

OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2)

Are you using xf86-video-intel ?

If so, try removing it.
If not, try adding it.

he15en6erg · 2018-10-04 01:38:01

Lone_Wolf wrote:

from the log linked in #9 :
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) 
Are you using xf86-video-intel ?
If so, try removing it.
If not, try adding it.

Installed and set tearfree as true, still no luck.

seth · 2018-10-04 07:52:56

For clarification, @Lone_Wolf see comment #4

@he15en6erg, please post the output of "xrandr -q", the DDC gathered modelines look odd.

he15en6erg · 2018-10-04 12:14:31

seth wrote:

@he15en6erg, please post the output of "xrandr -q", the DDC gathered modelines look odd.

$ xrandr -q
Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767
eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 310mm x 170mm
   1366x768      60.00*+  40.00  
   1280x720      59.86    60.00    59.74  
   1024x768      60.00  
   1024x576      60.00    59.90    59.82  
   960x540       60.00    59.63    59.82  
   800x600       60.32    56.25  
   864x486       60.00    59.92    59.57  
   640x480       59.94  
   720x405       59.51    60.00    58.99  
   680x384       60.00  
   640x360       59.84    59.32    60.00  
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

seth · 2018-10-04 12:26:02

Did you add the 1366x768 mode by hand?
Tried the 40Hz variant?
The 60Hz are only even remotely matching the ddc modes for reduced blanking.

=> Output of "xrandr -q --verbose"? (sorry, should have asked before)

he15en6erg · 2018-10-05 03:55:00

seth wrote:

Did you add the 1366x768 mode by hand?

No.

seth wrote:

Tried the 40Hz variant?
The 60Hz are only even remotely matching the ddc modes for reduced blanking.

I'm sorry I don't understand this. How do I do it ?

seth wrote:

=> Output of "xrandr -q --verbose"? (sorry, should have asked before)

Here you go.

Last edited by he15en6erg (2018-10-05 04:21:46)

seth · 2018-10-05 06:21:45

xrandr --output eDP1 --mode 1366x768 --rate 40

The xrandr modelines are the ddc gathered ones.

he15en6erg · 2018-10-05 11:36:10

seth wrote:

xrandr --output eDP1 --mode 1366x768 --rate 40
The xrandr modelines are the ddc gathered ones.

Woah ! IT WORKED !! Thanks a lot. Saved me a lot of pain. Can you please explain what was wrong; and can I acheive better refresh rate or perhaps something like that for better video quality ?

Last edited by he15en6erg (2018-10-05 16:54:20)

Arch Linux

#1 2018-10-01 11:29:43

[SOLVED] Screen Tearing and flickering

#2 2018-10-01 12:10:41

Re: [SOLVED] Screen Tearing and flickering

#3 2018-10-02 00:43:31

Re: [SOLVED] Screen Tearing and flickering

#4 2018-10-02 05:22:32

Re: [SOLVED] Screen Tearing and flickering

#5 2018-10-02 06:01:14

Re: [SOLVED] Screen Tearing and flickering

#6 2018-10-02 07:38:59

Re: [SOLVED] Screen Tearing and flickering

#7 2018-10-02 10:40:26

Re: [SOLVED] Screen Tearing and flickering

#8 2018-10-02 12:32:22

Re: [SOLVED] Screen Tearing and flickering

#9 2018-10-03 04:57:45

Re: [SOLVED] Screen Tearing and flickering

#10 2018-10-03 06:24:36

Re: [SOLVED] Screen Tearing and flickering

#11 2018-10-03 07:22:42

Re: [SOLVED] Screen Tearing and flickering

#12 2018-10-03 08:08:33

Re: [SOLVED] Screen Tearing and flickering

#13 2018-10-03 16:51:53

Re: [SOLVED] Screen Tearing and flickering

#14 2018-10-03 21:30:50

Re: [SOLVED] Screen Tearing and flickering

#15 2018-10-04 01:38:01

Re: [SOLVED] Screen Tearing and flickering

#16 2018-10-04 07:52:56

Re: [SOLVED] Screen Tearing and flickering

#17 2018-10-04 12:14:31

Re: [SOLVED] Screen Tearing and flickering

#18 2018-10-04 12:26:02

Re: [SOLVED] Screen Tearing and flickering

#19 2018-10-05 03:55:00

Re: [SOLVED] Screen Tearing and flickering

#20 2018-10-05 06:21:45

Re: [SOLVED] Screen Tearing and flickering

#21 2018-10-05 11:36:10

Re: [SOLVED] Screen Tearing and flickering

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