I agree with you. I’m having the same problem with BRLTTY 6.5, and 6.4. I found that the sys_admin, cap_sys_tty_config, and cap_mknod have not been granted. If I tried the command brltty-setcaps, I error that the command is not found. Here is my output when I look at BRLTTY –version:
BRLTTY 6.5 rev BRLTTY-6.5 [https://brltty.app/] brltty: Log Level: none brltty: Messages Locale: en_US.UTF-8 brltty: Messages Domain: brltty brltty: Messages Directory: /usr/share/locale brltty: Autospeak Threshold: none brltty: Privilege Parameter: path= brltty: Privilege Parameter: scfmode= brltty: Privilege Parameter: shell= brltty: Privilege Parameter: user= brltty: can't isolate namespaces brltty: executing as the invoking user: paul brltty: can't set supplementary groups brltty: group not joined: 0(root) brltty: group not joined: 5(tty) brltty: group not joined: 20(dialout) brltty: group not joined: 29(audio) brltty: group not joined: 102(input) brltty: required capability not granted: cap_sys_admin (for injecting input characters typed on a braille device) brltty: required capability not granted: cap_sys_tty_config (for playing alert tunes via the built-in PC speaker) brltty: required capability not granted: cap_mknod (for creating needed but missing special device files) brltty: Copyright © 1995-2022 by The BRLTTY Developers brltty: BrlAPI Server: release 0.8.4 brltty: Copyright (C) 2002-2022 by Sébastien Hinderer sebastien.hinde...@ens-lyon.org <mailto:sebastien.hinde...@ens-lyon.org> , Samuel Thibault <samuel.thiba...@ens-lyon.org Paul From: BRLTTY <brltty-boun...@brltty.app> On Behalf Of payman shaykhmehdi Sent: Monday, August 21, 2023 1:16 PM To: Informal discussion between users and developers of BRLTTY. <BRLTTY@brltty.app> Subject: [BRLTTY] xbrlapi can't read keys from brlapi I've compiled brltty 6.6 in ubuntu 20.04.6 LTS. Braille output in X windows and graphical apps works great. But the problem is with braille input. It seems that xbrlapi can not read keys from brlapi connection. I think that it is a permissions issue, due to usb device permission, I'm running brltty with root permission and running xbrlapi with root privileges doesn't make any difference. Also these logs from brltty doesn't look good : brltty: can't isolate namespaces brltty: can't set supplementary groups brltty: group not joined: 5(tty) brltty: group not joined: 20(dialout) brltty: group not joined: 29(audio) brltty: group not joined: 106(input) brltty: group not joined: 115(pulse-access)
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