Re: screen-udeb prevents bterm, and thus a lot of languages

[Samuel Thibault <sthibault@debian.org>]

Samuel Thibault, on Thu 15 Sep 2016 02:23:21 +0200, wrote:
> I'm however still getting displaying glitches on the serial console,
> which we already had with alpha7. Running from an xterm:
> 
> kvm -cdrom dest/netboot/mini.iso -serial stdio
> 
> and passing console=ttyS0 to the kernel, when moving inside menus the
> display gets completely torn.

Looking closely, it seems it's due to a spurious ^M in the output:

C      ^[[35C^[[42D^M
^[[0m^@^@English^[[35C^[[42D^[[A^@^@C      

which goes to the beginning of the line. Without screen, the sequence
is:

C      ^[[35C^[[15;35H^[[m^OEnglish^[[35C^[[14;35HC      

i.e. it uses absolute coordinates, and thus no issue.  I wonder where
this ^M comes from.

Samuel Thibault, on Thu 15 Sep 2016 02:42:23 +0200, wrote:
> Samuel Thibault, on Thu 15 Sep 2016 02:23:21 +0200, wrote:
> > Setting TERM=ansi on the kernel cmdline fixes the issue.
> 
> I'm wondering whether we should actually make this the default instead
> of vt102?

Probably not, I usually find on the Internet that serial console =
vt100/vt102

Samuel