Rebuilding a HyperHDR Host on a Dell Wyse 3040 with DietPi

The Goal The Raspberry Pi 4 that ran my HyperHDR ambient-lighting setup died. With current mini-PC and Pi prices, a used Dell Wyse 3040 thin client (Intel Atom x5-Z8350, 2 GB RAM, 8 GB eMMC) was the cheaper and frankly nicer replacement: fanless, x86_64, and plenty for HyperHDR’s ~250 MB working set. This note documents rebuilding the host on it with DietPi - including the part that the official installer would not do for me, and getting the 10-bit p010 capture format working on x86 via DKMS. ...

June 17, 2026 · 7 min

HyperHDR Ambient Lighting: My TV Backlight Rig

The Goal Ambient lighting (you may know it as bias lighting, or by Philips’ “Ambilight” brand) puts an LED strip around the back of the TV and lights it to match the edges of whatever is on screen: a forest scene spills green onto the wall behind the panel, an explosion throws orange. Beyond looking good, a lit wall behind the TV reduces eye strain in a dark room and makes the picture feel larger than the panel. ...

June 7, 2026 · 12 min