The home side got its first win of the season in a match delayed an hour due to a scoreboard malfunction.
Gabriel Obertan delivered Newcastle United's first win of the Premier League season as the home side beat Leicester City 1-0 on Saturday.
The Frenchman hit home in the 71st minute to give Newcastle victory at the eighth time of asking and cap an unconventional day at St James' Park.
Kickoff on Tyneside was delayed an hour due to issues with the newly installed big screen at St James' Park, with engineers scaling the stadium walls to fix the issue and ensure the game went ahead.
Once the game did get underway Newcastle enjoyed the better of the proceedings, though a lack of composure in front of goal looked likely to cost Alan Pardew's team - typified by Papiss Cisse missing an open goal.
But Obertan ensured Cisse's profligacy was not punished by netting his first goal since October 2012 to ease some of the pressure on under-fire manager Pardew.
A first maximum haul of 2014-15 moves Newcastle within a point of the teams immediately above the drop zone - including neighbor Sunderland after its 8-0 mauling at Southampton earlier in the day.
The pre-match drama continued as Cheick Tiote was injured in the warm-up and replaced by Vurnon Anita, supplementing Pardew's only other change which saw Steven Taylor replace Mike Williamson in defense.
Newcastle settled better after the bizarre events leading up to kickoff and Fabricio Coloccini curled a seventh-minute effort narrowly wide.
For all Newcastle's dominating possession, it was perhaps fortunate not to concede a penalty in the 28th minute when Daryl Janmaat appeared to illegally impede Leonardo Ulloa as the Argentine forward sought to get on the end of a dangerous cross in the area.
Leicester began to get a foothold in the game in the latter stages of the first half, with only the woodwork denying the opener in the 38th minute when Marc Albrighton's cross struck Tim Krul's left-hand post.
Pardew's side emerged with renewed confidence after the halftime interval, Moussa Sissoko seeing an effort deflected wide before Cisse could only find the side-netting from a tight angle after rounding Kasper Schmeichel.
Jack Colback saw a fierce free kick turned over the bar by Schmeichel but Obertan's moment of magic finally put the hosts into a deserved lead.
The former Manchester United man cut in from the left and avoided three Leicester challenges before unleashing a superb low shot out of Schmeichel's reach to his right.
An end-to-end finish saw each side come close but Newcastle ultimately hung on and the habitual ill-feeling at the final whistle was finally lifted as Pardew celebrated success.