Those who want just quick instructions, go to Step-1 directly. I have QNAP TS-110 NAS box with Debian installed in it. I am using it for backup and also as NAS server. This is going to be switched on for 24×7. So I thought of adding a monitor to this headless device and use it as a Digital Photo Frame also. The job is simpler than I expected.
To know more on my hardware setup, installing Debian and configuring backup and NAS functionalites refer here. Though I have a NAS box, the following instructions are applicable to any Linux machine with Debian installed. The backup data on this machine which includes Photos of all my machines in home network – serves as source for photo frame functionality. In case you don’t want NAS/backup functionalites, just install Debian with basic xorg server. My USB monitor is UM-70 Lilliput display of 7″, which can be installed with instructions from another post of mine.
Step-1: Install Debian, basic Xorg server and fluxbox. I have installed light weight fluxbox also for other functionalities proposed for future.
Step-2: Install qiv. qiv is a nice open source image viewer, very much suitable – customizable – for Photo frame functionality.
# apt-get install x11-xserver-utils qiv
Step-3: Create a normal user. Include the below lines in ~/.fluxbox/startup of this user just above “exec fluxbox” line. If you don’t want fluxbox, you can use .xinitrc to do the following stuff.
xset -display :0.0 s off &qiv -f -s -i -t -r -u -d 5 /home/nas/laptop/blackgod/Pictures
The xset command disables blank screensaver, which is essential for Slide show.
The next qiv command is the core slide show program. Note down the absence of & at end of this line, which prohibits running fluxbox desktop, which is not necessary for a photo frame. The last argument is the path of photos. Here is the break-up of argument to qiv.
-f full screen
-s slide show
-i disable status bar
-u recursively get photos from directory given
-t fit image size to screen size
-r randomize slide show
-d <sec> slide show delay
At this stage, when you start X with startx command, your slide show should start. Now we need to automatically start x and login as normal user and start slide show when the system is power on. This can be done by following step.
Step-4: To get better display life and conserve some power, I enable the Display Power Management System (DPSM) at 10PM and disable it at 8AM daily with this cron tab settings. Create a file called “slideshow” in /etc/cron.d/ as root user with the following content.
0 8 * * * <username> /usr/bin/xset -display :0.0 dpms force on
0 22 * * * <username> /usr/bin/xset -display :0.0 dpms force off
Option “DPMS” “false”
id:5:initdefault:x:5:once:/bin/su <username> -l -c “/bin/bash –login -c /usr/bin/startx > /dev/null 2>&1”