In reply to Dispater:
from Saucerful of Secrets: The Pink Floyd Odyssey book:
'At each gig, the headlining Hendrix was allotted exactly 40 minutes. The Move, who preceded him onstage, had just half an hour. And the Floyd was expected to sum up what they were all about in precisely 17 minutes!...As the tour wore on, Barrett appeared increasingly morose and depressed. Jimi Hendrix, unaware as almost everyone else of the underlying seriousness of Syd's condition, took to addressing him ironically as 'Laughing Syd Barrett'.