Screen tearing

Getting your soundcard to work, using Debian on non-i386 hardware, etc

Screen tearing

Postby Mahesh Krishna » 2020-08-31 03:41

I'm using debian 10 with intel graphics (Intel Corporation 82G33/G31 Express Integrated Graphics Controller)
graphics is very slow
there is a lag while playing videos and I see light gray lines on screen
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Re: Screen tearing

Postby stevepusser » 2020-08-31 03:57

I think the G31 is a rather old GPU that doesn't require any extra firmware, but can you install inxi and give us the result of "inxi -G" in the terminal so we can be sure?
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Re: Screen tearing

Postby Mahesh Krishna » 2020-08-31 05:25

this is the output from inxi -G

Graphics:
Device-1: Intel 82G33/G31 Express Integrated Graphics driver: i915
v: kernel
Display: wayland server: X.Org 1.20.4 driver: none
resolution: 1920x1080~60Hz
OpenGL: renderer: llvmpipe (LLVM 7.0 128 bits) v: 3.3 Mesa 18.3.6
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Re: Screen tearing

Postby Head_on_a_Stick » 2020-08-31 07:47

Try the X session for GNOME instead of Wayland.

Reference: https://bbs.archlinux.org/viewtopic.php?id=220693
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Re: Screen tearing

Postby Mahesh Krishna » 2020-08-31 09:31

switching to x-org session didn't solve the issue
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Re: Screen tearing

Postby LE_746F6D617A7A69 » 2020-08-31 09:46

Mahesh Krishna wrote:I'm using debian 10 with intel graphics (Intel Corporation 82G33/G31 Express Integrated Graphics Controller)
graphics is very slow
there is a lag while playing videos and I see light gray lines on screen
For such an old HW it is important to know what CPU do You have and what is the resolution of the movies.
Do You experience the lags/artifacts when playing the movies in a small window instead of full-screen?
It's also important to know how much system memory is assigned for the GFX - in old systems it usually defaults to 32/64MB -> You should increase this to at least 128 or 256MB (BIOS settings).
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Re: Screen tearing

Postby kedaha » 2020-08-31 12:39

Maybe something along the lines of "Prevent screen tearing on Linux with X11 configuration" as detailed here?
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Re: Screen tearing

Postby stevepusser » 2020-09-01 03:25

Hardware that old should default to the intel driver automatically instead of modesetting, but I hoped that inxi would confirm that. But, yes, the TearFree option needs to be added manually, and uxa is worth a try if the default sna is troublesome.
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Re: Screen tearing

Postby Head_on_a_Stick » 2020-09-02 15:54

I think the software rendering is the main issue, please post the X.Org log and the output of
Code: Select all
glxinfo -B
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