Alvaro Negredo and Yaya Toure struck in the second half as Manchester City finally saw off a dogged Hull side 2-0 at the Etihad Stadium.
A week after suffering an unexpected loss to promoted Cardiff, the hosts were again troubled by one of the Barclays Premier League's newcomers in what was an unconvincing display by Manuel Pellegrini's men.
Substitute Negredo, who Hull tried to sign before their doomed last campaign in the top flight four years ago, broke the deadlock after the hour and Toure curled in a last-minute free-kick.
Hull can take many positives from their resilient display, as well as another fine performance by goalkeeper Allan McGregor, but they will rue an early missed chance by Sone Aluko.
Danny Graham, replacing the suspended Yannick Sagbo, also struck only to see a flag raised for offside.
Pellegrini's defence had a more solid look about it with Matija Nastasic fit again to play alongside Joleon Lescott in place of makeshift centre-back Javi Garcia.
But the hosts were slow out of the blocks and Hull took advantage of their lethargy, frustrating the hosts with their determination to defend strongly and chase everything.
Joe Hart, under scrutiny for club and country after an indifferent start to the season, seemed uncertain as Hull made an early move into the box but Pablo Zabaleta cleared the danger.
Hull should have claimed the lead in the seventh minute when Graham's ball took a fortunate ricochet off Nastasic and sent Aluko clear.
But the former Rangers striker squandered a glorious opportunity as he scuffed a low shot wide of the post after reaching the edge of the area unchallenged.