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Linux Frame-Buffer Console To Drop Accelerated Scrolling Since It's Full Of Bugs

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  • Linux Frame-Buffer Console To Drop Accelerated Scrolling Since It's Full Of Bugs

    Phoronix: Linux Frame-Buffer Console To Drop Accelerated Scrolling Since It's Full Of Bugs

    The Linux kernel's frame-buffer console (FBCON) is set to drop accelerated scrolling support since it isn't widely used and now found to be "full of bugs" thus pushing it for removal...

    http://www.phoronix.com/scan.php?pag...ON-To-Ditch-AS

  • #2
    Then how am I going to scroll when I cannot use the graphical session? :<

    (please do NOT say tmux or screen because when I need it I have not started it)
    (also please do not say kmscon because that is a userspace program, and I would strongly prefer a kernel module since it can survive even during a kernel panic)

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    • #3
      Originally posted by tildearrow View Post
      Then how am I going to scroll when I cannot use the graphical session? :<

      (please do NOT say tmux or screen because when I need it I have not started it)
      (also please do not say kmscon because that is a userspace program, and I would strongly prefer a kernel module since it can survive even during a kernel panic)
      The same way you scrolled before. Did you even read the article?

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      • #4
        Originally posted by xnor View Post

        The same way you scrolled before. Did you even read the article?
        I did read the article, but wasn't scrolling removed in 5.9? I thought?

        Did I miss something?

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        • #5
          Originally posted by tildearrow View Post
          Did I miss something?
          This is about accelerated scrolling.

          Following initial discussions it looks like this change could happen for Linux 5.11 where Nouveau / OMAPDRM / GMA500 would be affected and resort to always redrawing the console when scrolling.
          So instead of being able to use GPU features to scroll, they have now to redraw when user scrolls.

          At least that's how I understood the article.

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          • #6
            Originally posted by tildearrow View Post

            I did read the article, but wasn't scrolling removed in 5.9? I thought?

            Did I miss something?
            Soft & accelerated scrolling is dropped.
            You can still scroll. But it won't be, quoting "Zohan", "Silky smooth".

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            • #7
              imagine after 30 years of development each time someone looks closer at any given subsystem in this single adresspace monolithic kernel, they find it full of bugs and delete it.

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              • #8
                Originally posted by rene View Post
                imagine after 30 years of development each time someone looks closer at any given subsystem in this single adresspace monolithic kernel, they find it full of bugs and delete it.
                But millions of eyes ... yeah, right. Speaks volumes about the Open Source development model.

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                • #9
                  Next step: FBCON to be removed.

                  KMSCon fork or similar? New kernel console subsystem from scratch?

                  FBCON is becoming less useful and more limited, there needs to be a more modern replacement without the cruft. Something le the Wayland of console/ terminal but with secure networking and serial port built in.

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                  • #10
                    Originally posted by birdie View Post

                    But millions of eyes ... yeah, right. Speaks volumes about the Open Source development model.
                    Yes, I'm sure you'd much prefer nobody saw the code at all and they just left all those bugs in there.

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