Re: Text garbling

[Eli Zaretskii]

> From: Eric Abrahamsen <address@hidden>
> Date: Mon, 23 Mar 2020 18:30:53 -0700
> 
> Look at the exciting thing that happened to my Emacs this afternoon! A
> few letters were switched out for other letters, and most numbers went
> "off". This happened as I set off a list-package upgrade, switched away
> to a different program, and then switched back.
> 
> https://ericabrahamsen.net/garbled.jpg
> 
> In that screenshot I'd done "C-u C-x =" on a capital "R", which was
> displaying as a capital "P".
> 
> I'm running Emacs master on Arch linux, using the Wayland protocol with
> the sway window manager.
> 
> Everything seemed to work fine (including input), just text displayed
> wrong.
> 
> It went away after a restart. I guess I'd be surprised if the problem
> came back, and I'm not really expecting any bug hunting here. But I
> thought it might be useful to log what happened. Happy to provide any
> other information of interest.

My bet is on some "optimization" feature of your video driver that is
buggy.  Upgrading or downgrading that driver might help.