Monospace font causes improper rendering

Question

Monospace font causes improper rendering

MrButlerTron opened this issue 5 years ago · comments

Using qrencode -t ansituf8 on Ubuntu Linux over SSH from a Windows machine using KiTTY or Putty the QR codes do not render properly. I am not sure if there is a fix for this other than just not using a monospace font.

I was using Inconsolata and the problem goes away when I go to the default Courier New. It could just be that specific font. I have not yet had a chance to try other fonts.

Kentaro Fukuchi · Answer 1 · Tue Dec 10 2019 15:55:44 GMT+0800 (China Standard Time)

ANSI-UTF8 mode highly depends on Unicode's "block elements" characters.
https://en.wikipedia.org/wiki/Block_Elements

I'm afraid that Inconsolata does not support the block elements.

MrButlerTron · Answer 2 · Tue Dec 10 2019 20:38:24 GMT+0800 (China Standard Time)

Thanks! That explains it. I will check my other fonts and now I'll know for the future.

GHPS · Answer 3 · Thu May 06 2021 23:10:34 GMT+0800 (China Standard Time)

Short comment: I had the same issue with InconsolataGo Nerd Mono and found after some testing that even Ubuntu Mono and Mitra Mono affected.

Switching from "-t ansiutf8" to "-t ansi256" or "-t ansi" made the qr code usable again
(although it is not that pretty to look at).

"Inconsolata-g for Powerline" is also not affected - so switching to that can be an option.