HP xw4400 Workstation - Manual (Page 145)

Troubleshooting
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work for most systems… but if not, try manually playing with mixer settings
via the alsamixer in a terminal window or via your favorite mixer application.
JACK Sound Server:
JACK is a sound server that interfaces with the ALSA drivers. Once installed
and configured on your machine, this is your sound.
8. User-started X environments (startx) do not reliably support outside
connections:
Users who manually start X desktops (such as with startx ) from the console
command line will find that outside access attempts may not properly connect
or be authenticated. This stems primarily from incomplete PAM session
management and permissions to the console. Users should avoid this
condition and achieve login management through init-level 5 of the X server.
9. Improperly configured /etc/hosts table (Linux only):
The default on RedHat Linux is to bind the machine name to the loopback
interface in the /etc/hosts file:
127.0.0.1 blade2 localhost.localdomain
The RGS Sender will not accept remote connections with this configuration.
Edit the /etc/hosts file and bind the machine name to its proper IP address
as follows:
127.0.0.1 localhost localhost.localdomain
88.1.89.122 blade2 blade2.bigmoney.com
10. Advanced Linux Sound Architecture (ALSA) support:
Release 4.0.0 for Linux requires Advanced Linux Sound Architecture (ALSA)
support to be installed prior to RGS installation. If the RGS installation script
runs on a system without ALSA installed, the subsequent JACK Audio
Connection Kit (JACK) built will not be compatible with ALSA loaded anytime
after the fact. If this occurs, first install the necessary ALSA support drivers
and libraries and then re run the JACK install script as:
/opt/hpremote/rgreceiver/hp_rgs_4_audiosupport/rgs_audio_sup
port install
and answer "yes" to the prompts to re-install JACK.
For information on any additional issues and limitations, see the release notes on the
HP Remote Graphics Software CD.