A digital billboard in Greenock, Scotland, has displayed a Debian Linux login prompt for several weeks instead of advertisements, apparently because nobody has restored its normal operation. The incident matters as a visible example of unattended public technology, potentially linked to the collapse of the billboard’s former operator, 75Media.

The sign was reportedly a 75Media billboard in 2024, but the UK outdoor advertising company ceased trading at the end of 2025, and responsibility may since have passed elsewhere. The system appears to run Debian 11 “Bullseye”, released in 2021, on a 1,200 × 320-pixel display; Debian 11 reaches end of long-term support in 2026, though paid extended fixes may continue to 2031.