The Xvfb readiness loop in entrypoint.sh used xdpyinfo, which isn't in the Playwright base image. On busy hosts the loop fell through before Xvfb was ready, so Chromium launched with no X server and crashed with "Missing X server or \$DISPLAY". Add x11-utils (provides xdpyinfo) and extend the readiness loop to 10 s with explicit logging. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>