[BRLTTY] BRLTTY appears severely broken

[Rob Hudson]

I have a hack in place.
/etc/udev/rules.d/99-brltty.rules
SUBSYSTEM=="tty", KERNEL=="tty[0-9]*|hvc[0-9]*|sclp_line[0-9]*|ttysclp[0-9]*|3270/tty[0-9]*", GROUP="tty", MODE="0620"
Then
udevadm control --reload-rules && udevadm trigger
This fixed all the problems.
----- Original Message -----
From: Aura Kelloniemi <kaura.dev at sange.fi>
To: "Informal discussion between users and developers of BRLTTY." <brltty at brltty.app>
Date: Wed, 12 Nov 2025 12:28:29 +0200
Subject: Re: [BRLTTY] BRLTTY appears severely broken

> Hi Rob,
>
> On 2025-11-12 at 03:42 -0600, "Rob Hudson" <rob_hudson_3182 at gmx.com> wrote:
>  > I added those lines to the brltty.conf file. Unplugged my display. Killed all brltty processes. Replugged the display and tried to get into a console. Unplugged display, re-killed all processes. No log file was created. The path I used was /var/log/brltty.log
>
> BRLTTY cannot write to /var/log as it is running under an unprivileged user.
> You need to put the log file to /tmp/ or some other directory where the
> `brltty` user has write permissions.
>
> Your original problem, by the way, most likely is that BRLTTY does not have
> access to /dev/tty0. It is a permissions problem.
>
> As far as I understand, Arch has not changed anyghing, it is Linux kernel
> itself that has changed default permissions of /dev/tty devices.
>
> You can try running your Arch with linux-lts kernel package to try to confirm
> my theory.
>
> There is a fix already in BRLTTY's git repository. It fixes this.
>
> --
> Aura
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