Dear Maintainer,
My current kernel command line is about 400-character long. When it was
shorter, I didn't have any issues when I wanted to edit this line in the
bootloader screen by selecting some entry and pressing "E".
I recently added some other kernel parameters to the cmd line, and I noticed
many visual bugs in the bootloader screen. Basically with each cursor movement
(back and forth), I get an extra text line in the screen output (copy of the
current line scrolled up). Also characters in the cmd line disappear or change
when I move the cursor back. The visual bugs make it almost impossible to edit
the kernel cmd line. Also When I press the backspace key (or the back arrow
key)
for a longer period of time (let's assume I want to delete some parameters
entirely from the line), I hear the hardware beeper which is really annoying.
I found out that the problem appears when I have more than 4 lines of text on
the screen when editing the cmd line. So fifth (and next ones) will trigger the
visual bugs, while 4 (and less) won't.
So what to do with it?
- -- System Information:
Debian Release: bullseye/sid
APT prefers unstable
APT policy: (990, 'unstable'), (500, 'testing'), (130, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 5.3.11-amd64 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages extlinux depends on:
ii libc6 2.29-3
Versions of packages extlinux recommends:
ii syslinux-common 3:6.04~git20190206.bf6db5b4+dfsg1-1
extlinux suggests no packages.
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