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Ancient X11 scaling technology

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283 points todsacerdoti | 1 comments | 24 Jun 25 18:58 UTC | HN request time: 0.234s | source
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rwmj ◴[24 Jun 25 21:13 UTC] No.44371126[source]▶
It's like the "oh no, X11 suffers from tearing video" problem that they pull out all the time. (A) I have no idea what "video tear" is and (B) I play video all the time on my crappy laptop running X11 and it seems fine for me. But can I ssh to my remote server and run emacs or another program completely transparently yet with Wayland? Nope. I do that with X11 continuously.
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ginko ◴[25 Jun 25 07:01 UTC] No.44374370[source]▶
Worst was with the discussion about Wayland having extra latency on mouse pointer movements. The explanation there was that X11 used HW pointer device that got updated as soon as there was a change but that might lead to gasp occasional pointer tearing. So better add a couple ms of latency to everything in Wayland and sample the mouse pointer position once per frame.

FWIW, I do see screen tearing on my X11 multi-monitor setup. I just don't care.

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1. simoncion ◴[25 Jun 25 09:25 UTC] No.44375247[source]▶
> FWIW, I do see screen tearing on my X11 multi-monitor setup. I just don't care.

If you ever get really bored one day, and you have nothing else to do, and you're using AMD/ATi hardware, try enabling the TearFree option for your video card driver. Something like

  Section "Device"
   Identifier "AMD"
   Driver "amdgpu"
   Option "TearFree" "on"
  EndSection
in a new .conf file in '/etc/X11/xorg.conf.d' and a restart of your display server(s) should do the trick. It works fine for me, and has worked fine for like a decade or more.