Bristol Palin attended the 20-minute hearing Thursday at Palmer Superior Court but Levi Johnston did not appear or participate by phone.
The judge told Johnston's lawyer it would have been better if Palin's former fiance had participated.
The 19-year-old daughter of Sarah Palin is seeking nearly $1,700 a month in child support from Johnson, who is a current Playgirl model. Palin's lawyer is seeking to subpoena Playgirl and media outlets to find out how much Johnston made last year.
The judge set a trial date for Sept. 23 and told Johnston's lawyer to get his client's financial information to the court. He says it was past due.
