Re: [PATCH v2 0/2] Fix regression introduced by disabling accelerated scrolling in fbcon

From: Geert Uytterhoeven
Date: Tue Jan 25 2022 - 03:36:23 EST


Cc regressions

On Mon, Jan 24, 2022 at 10:04 PM Helge Deller <deller@xxxxxx> wrote:
> This series reverts two patches which disabled scrolling acceleration in
> fbcon/fbdev. Those patches introduced a regression for fbdev-supported graphic
> cards because of the performance penalty by doing screen scrolling by software
> instead of using existing 2D hardware acceleration.

In the mean time, a userspace regression has been reported, too:
https://lwn.net/Articles/882054/
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988039

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds