Screen Tearing – Intel Laptop

[Anonymous]

Good Day Folks,

I am used to running compositors and this is the first time I am having issues, especially with Intel, which is always a breeze with picom/compton. Not sure why?

Below is the specs of my hardware.

sudo inxi -GSxxx

System:    Host: E7570 Kernel: 4.9.0-279-antix.1-amd64-smp x86_64 bits: 64 compiler: gcc v: 10.2.1 Desktop: i3 4.19.1-non-git 
           info: i3bar dm: N/A Distro: antiX-21_x64-base Grup Yorum 31 October 2021 base: Debian GNU/Linux 11 (bullseye) 
Graphics:  Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Dell driver: i915 v: kernel bus-ID: 00:02.0 
           chip-ID: 8086:1916 class-ID: 0300 
           Device-2: Realtek Integrated_Webcam_HD type: USB driver: uvcvideo bus-ID: 1-2:2 chip-ID: 0bda:5686 class-ID: 0e02 
           serial: 0001 
           Display: server: X.Org 1.20.11 driver: loaded: modesetting unloaded: fbdev,vesa resolution: 1366x768~60Hz s-dpi: 96 
           OpenGL: renderer: llvmpipe (LLVM 11.0.1 256 bits) v: 4.5 Mesa 20.3.5 compat-v: 3.1 direct render: Yes

I have tested xcompmgr and picom, and both give screen tearing. I don’t have a config file, but I prefer running a simple command at startup. Something like
xcompmgr -F -C or
picom -cCGf

With picom I have tried all three backends, i.e.
xrender, glx, xr_glx_hybrid,
I also tested these backends with the
--no-use-damage flag with no success. Is the correct gfx driver installed? Should I try a newer kernel?

Thank You

• This topic was modified 1 year, 4 months ago by anticapitalista. Reason: removed solved

[Forum Admin rokytnji]

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Not sure what is going on but you have the correct driver
https://www.intel.com/content/www/us/en/support/articles/000005520/graphics.html

Have you looked through dmesg for any missing firmware related to graphics is all I can figure.
Maybe dmesg may tell you about what is causing the screen tearing also.

Good luck

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[Moderator caprea]

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Anonymous wrote:

OpenGL: renderer: llvmpipe

The gpu is not used here for gl rendering.This is software rendering using the cpu.
Normally the Mesa DRI should be used for rendering.
We have to look why this is the case. Did you before installation or do you use nomodeset or any other boot parameter?

Also, it is definitely appropriate to try a newer kernel and it might worth a try to use the intel driver instead of modesetting.
https://mxlinux.org/wiki/hardware/intel-video-driver/

• This reply was modified 1 year, 4 months ago by caprea.

[Anonymous]

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Hi Caprea,

I didn’t do anything, I literally just did the install and went ahead for “normal” tweaking.

I’ll add the intel xorg config and reboot to see how things are. After that I’ll try a newer kernel.

[Anonymous]

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Seems that after loading the Intel driver that all is well 😀

Here is my current setup:

sudo inxi -GSxxx

System:    Host: E7570 Kernel: 4.9.0-279-antix.1-amd64-smp x86_64 bits: 64 compiler: gcc v: 10.2.1 Desktop: i3 4.19.1-non-git 
           info: i3bar dm: N/A Distro: antiX-21_x64-base Grup Yorum 31 October 2021 base: Debian GNU/Linux 11 (bullseye) 
Graphics:  Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Dell driver: i915 v: kernel bus-ID: 00:02.0 
           chip-ID: 8086:1916 class-ID: 0300 
           Device-2: Realtek Integrated_Webcam_HD type: USB driver: uvcvideo bus-ID: 1-2:3 chip-ID: 0bda:5686 class-ID: 0e02 
           serial: 0001 
           Display: server: X.Org 1.20.11 driver: loaded: intel resolution: 1366x768~60Hz s-dpi: 96 
           OpenGL: renderer: llvmpipe (LLVM 11.0.1 256 bits) v: 4.5 Mesa 20.3.5 compat-v: 3.1 direct render: Yes

It might be a placebo effect, but the performance feel better. so I am very happy haha. And I don’t even have a compositor enabled, yet, I have no screen tearing.

[Moderator caprea]

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The screen tearing may well be over but unfortunately the 3d rendering still doesn’t work as intended.
Is firmware-misc-nonfree installed?

[Anonymous]

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Hi Caprea,

Yes, it is installed. See attached photo. Is there a way to check that everything works as intended?

[Moderator caprea]

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As long as the llvmpipe is used for opengl rendering it does not work like it should. You will notice it at the latest when playing games or installing something like kodi.Overall the performance would be much better if we find the cause and you can manage to use the Mesa DRI.

Might a good idea to remove the solved in the title, so more people will look at this again.

We have to look for hints. Could you post the /var/log/Xorg.0.log
and output from
dmesg | grep i915

Did you already try another kernel? It’s easily done with the package-installer, you can always go back to your old kernel if the new one doesn’t work for you.

[Anonymous]

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Hi Caprea,

Not sure why, but I can’t edit the original post?

Here is the output to
dmesg | grep i915

dmesg | grep i915
[   12.015929] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
[   12.026282] [drm] Finished loading i915/skl_dmc_ver1_26.bin (v1.26)
[   13.378271] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[   13.415686] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device

I haven’t tried a new kernel. I was wondering about that. What kernel should I go for?
linux-image-5.10.57.antix.1-amd64-smp?

[Moderator caprea]

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Worth a try, if it will not boot with this kernel you can choose in the advanced options on the boot screen your old kernel.But it should boot fine with 5.10.57.antix.1-amd64-smp.

[Member sybok]

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Hi,
this seems to be a topic that sometimes comes back.
Does the post https://www.antixforum.com/forums/topic/intel-screen-tear/ (and links therein) provide some advice that is applicable here as well?

[Anonymous]

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Hi Caprea,

[EDIT] So I installed the 5.10 kernel, booted and all is well, it seems? What do I check next for complete 3D rendering?

[Anonymous]

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Hi sybok,

This definitely helps and was suggested as a solution here. I have already implemented this fix and made a difference.
We are now looking at 3D rendering.

[Anonymous]

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So Kernel 5.10 is not an option for me. I get a screen freeze when I run
gksu synaptic

This happens every time, then I have to force shutdown. When I boot into 4.9 I can run
gksu synaptic
without any issues

[Member ModdIt]

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Intention is generaly to use sudo, do you still get a lock up if you use that command.

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