My After a little exploration from the command line,
startx brought up the GUI. As well as the composite video output, the Raspberry Pi supports HDMI. My monitor (a Viewsonic VX2235WM-3) has VGA and DVI inputs, so I ordered the AmazonBasics HDMI to DVI Cable. Connecting up to my monitor, I was disappointed to see no video signal whatsover - the monitor wasn’t seeing the Raspberry Pi at all. Googling around, I discovered that you can set various configuration options that are read before the Raspberry Pi even boots. With a little experimentation, I found that setting
in config.txt solves the problem - I see video output from the moment I power up the Raspberry Pi! This makes sense - the description of
hdmi_force_hotplug is “Use HDMI mode even if no HDMI monitor is detected” - I’m guessing the cable is not signalling the presence of a monitor to the Raspberry Pi, so it decides that it doesn’t need to send HDMI output. Watch this space for more Raspberry Pi fun!
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