Virtual Appliance — Optimize Logging in .Xession-Errors

Symptoms

TranslationBecause pending.the system lacks a sound card, ALSA (Advanced Linux Sound Architecture) continuously logs various error messages in the file ..xsession-errors This can fill the system's available disk space.

This issue affects versions up to and including openthinclient-Appliance-2024.1-BETA.

Sample log entries

ALSA lib conf.c:5703:(snd_config_expand) Evaluate error: Datei oder Verzeichnis nicht gefunden
ALSA lib control.c:1528:(snd_ctl_open_noupdate) Invalid CTL default
ALSA lib conf.c:5703:(snd_config_expand) Evaluate error: Datei oder Verzeichnis nicht gefunden
ALSA lib control.c:1528:(snd_ctl_open_noupdate) Invalid CTL default
ALSA lib confmisc.c:855:(parse_card) cannot find card '0'
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_card_inum returned error: Datei oder Verzeichnis nicht gefunden
ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings

Workaround

Log in to openthinclient-Appliance Open a terminal and enter the following command:
`

sudo nano /etc/systemd/system/load-snd-dummy.service

` The service file will then be generated, and modify the file as follows:
`

[Unit]
Description=Load snd-dummy module if /proc/asound/cards does not exist
ConditionPathExists=!/proc/asound/cards

[Service]
Type=oneshot
ExecStart=/usr/sbin/modprobe snd-dummy

[Install]
WantedBy=multi-user.target

` Save the modification to the load-snd-dummy.service Execute the following commands to enable and start the service:

sudo systemctl enable load-snd-dummy.service
sudo systemctl start load-snd-dummy.service