Newcastle's lead at the top of the Championship has been cut to two points.
Struggling Blackburn moved out of the relegation zone by getting a 1-0 win at St James' Park - ending an eight-match winning run in the league for Rafa Benitez's side.
Scotland international Charlie Mulgrew got the only goal with 15 minutes to go, while Meath native and Ireland under-21 defender Darragh Lenihan was at centre-back for Blackburn.
Ciaran Clark also started at centre-back for Newcastle.
Ex-Ireland defender Chris Hughton watched his Brighton side take advantage of the Magpies' result by coming from behind to beat Fulham 2-1.
Glenn Murray scored the winner 12 minutes from time.
Elsewhere Aston Villa beat Cardiff City 3-1 at home and Norwich City's poor form continued with a 1-0 loss at Derby County - a fifth defeat in a row.
Villa are now up to 11th, just three points off the playoff places and two behind Norwich.
Boys in Green midfielders Wes Hoolahan and Robbie Brady started for the Canaries, with the former substituted after 67 minutes.
Darragh Lenihan, Blackburn Rovers. Picture by Dave Howarth PA Archive/PA Images
Ireland qualified forward Scott Hogan scored for Brentford but was on the losing side as Birmingham City beat them 2-1 away. That was Hogan's 11th of the season.
Mick McCarthy's Ipswich were 3-0 winners over Queens Park Rangers.
The former Ireland manager fielded a host of Irish players including current international David McGoldrick, eight time Boys in Green cap Jonathan Douglas and 80th minute sub Leon Best.
Ireland keeper Kieren Westwood also kept a clean sheet as Sheffield Wednesday won 2-0 away at Wolves who had Irish full-back Matt Doherty starting for them.
Paul McShane started for Reading and Stephen Kelly came on as an injury time sub as they saw off Bristol City 2-1.
Ireland winger Callum O'Dowda was brought on after 58 minutes by Bristol.
Aiden McGeady and Greg Cunningham both started in Preston North End's 1-1 draw with a Burton Albion side featuring Limerick native Damien McCrory.
Dubliner Eoin Doyle was a late sub for Preston.
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