SteamOS, HDMI and no sound

No sound from your TV connected via HDMI to a SteamOS machine? Can’t select the HDMI soundcard?

Switch to Desktop Mode, go to Settings, then Sound, select HDMI, play test sound, exit.

Now there is sound in SteamOS.

Xfce and volume step

Does your Xfce change the volume settings in %5 steps but you want 2%?

Find the pulsaudio plugin location in xconf:

xfconf-query -c xfce4-panel -l -v | grep pulseaudio
/plugins/plugin-8                            pulseaudio

Use that to set the step to 2%:

xfconf-query -c xfce4-panel -p /plugins/plugin-8/volume-step -n -t int -s 2

Nginx, WebDAV and tmp

Want to have a WebDAV mountable temporary file storage? Supporting Windows? With the following hack overriding PROPPATCH it works for me:

server {

	location /tmp {
        alias /var/www/tmp;
        autoindex on;

        if ($request_method = PROPPATCH) { # Unsupported, allways return OK.
            add_header Content-Type 'text/xml';
            return     207 '<?xml version="1.0"?><a:multistatus xmlns:a="DAV:"><a:response><a:propstat><a:status>HTTP/1.1 200 OK</a:status></a:propstat></a:response></a:multistatus>';

        dav_methods PUT DELETE MKCOL COPY MOVE;
        dav_ext_methods PROPFIND OPTIONS LOCK UNLOCK;
        dav_ext_lock zone=tmp;
        dav_access user:rw group:rw all:rw;

        client_max_body_size 0;
        create_full_put_path on;
        client_body_temp_path /tmp/;

        open_file_cache off;

Jenkins Jelly override

Want to override a packaged jelly file? Maybe headerContent.jelly, from


Put it here


in the epxloded war location.

A restart may be required.

Bullseye, HDMI and out of sync sound

Watching a video with Firefox on Debian Bullseye via an HDMI display and the sound keeps getting out of sync? Booting with


helped me. See #867548.

Minikube, Podman and Proxy

Running minikube behind a proxy with podman? Setup all http_proxy environment variables and podman still won’t use your proxy?

Configuring sudo to heep this variables:

Defaults        env_keep += "http_proxy https_proxy ftp_proxy no_proxy HTTP_PROXY HTTPS_PROXY"

worked for me.

Trigger Jenkins SCM polling

Want to trigger SCM polling for a certain job? Use

Jenkins.instance.getAllItems( Job.class ).
  find { job -> job.fullName == 'p1' }.
  each { job ->

nc10, root on luks, modules=dep and missing cipher

Trying to boot debian buster on a Samsung nc10 with crypted root? Getting

Check that kernel supports aes-xts-plain64 cipher

when you switch initramfs to modules=dep?

Adding ecb to /etc/initramfs-tools/modules and running update-initramfs -k all -u worked for me.

Nextcloud, Collabora and 404s

Running your own docker based Collabora Online server? Getting 404s after an update with these log entries:


Seems like some URLs where changed:

Seems like /loleaflet has been renamed to /browser and lool to cool in latest collabora version.

See #1904 and Proxy Settings.