He's got two more competition points but Gold Coast coach John Cartwright is fed up with what he feels are poor decisions by the NRL's video referees.

Cartwright was furious when video referee Luke Phillips disallowed a try to his team for obstruction in the second half of Sunday's 15-14 victory over St George Illawarra.

The Titans were trailing 14-8 when fullback Will Zillman crashed over only for former Sydney Roosters fullback Phillips to rule co-captain Greg Bird had obstructed the defence.

Cartwright admitted he stormed out of the coaches' box in the wake of the decision.

Thankfully for the Titans mentor, his team took out their frustrations in the right manner to secure a much-needed win following back-to-back defeats.

But it was small consolation for Cartwright.

"When they sit there and watch it 10 times and still get it wrong, and you can see my blood boiling now, that's when I get cranky," Cartwright told reporters.

"Most people only look at the scoreline, they don't worry about what went into the game, and it's another loss to the Titans ... get it right.

"The try was scored because Tyson Frizell made a bad decision, anyone whose ever watched a game of football will know that.

"We could have lost today's game and they say the Titans are struggling again. Bull****. Get it right."

Cartwright praised his team for overcoming the call to hit the front through Aidan Sezer's 67th minute field goal before repelling a late Dragons charge.

But the visitors were also fuming at the officials after they conceded 12 penalties to the Titans' six, with captain Ben Creagh conceding it had been tough to know what the players could and couldn't do on the field.

"There was plenty against us and there was a wide variety of penalties too," Creagh said.

"Everything we could get penalised for we did today. It's hard for me as a captain trying to talk to my players to stop doing certain things ... when there's a different thing every time."

The Dragons had earlier started brightest when debutant fullback Adam Quinlan set up Daniel Vidot for the opening try of the match and hit the front early in the second half after Jason Nightingale's second four-pointer.

But despite a strong finish, and several attempts at a levelling field goal by playmaker Jamie Soward, the visitors couldn't break down the Titans in the final 10 minutes.

The victory keeps the Titans in the top eight on 10 points while the Dragons are two points behind eighth-placed Brisbane.

In Sunday's early match, Blake Ferguson pressed his claim for a NSW State of Origin berth as he scored a hat-trick in Canberra's 44-14 win over Newcastle.

The Raiders win came despite the home team trailing 14-0 after 16 minutes.