Hoddle Street mass murderer Julian Knight will have to wait another month in his bid to get a computer in his prison cell.

Knight has been trying to get a computer at Melbourne's Port Phillip Prison since 2006 and is now arguing he wants one for legal and educational reasons.

But because he's been declared a vexatious litigant, Knight must first seek court permission to start a proceeding and prove to the court that his application would not be doomed to fail.

In a brief hearing in the Victorian Supreme Court on Wednesday, Knight said he had sought a computer for educational and legal reasons, as he was currently representing himself in other matters.

Associate Justice Melissa Daly set a hearing date of June 24.

She set aside Knight's subpoena seeking the applications made by other prisoners for access to computers.

Knight was also challenging a decision to deny him a PlayStation, but that matter was adjourned at a date to be fixed.

AAP pbc/sbl/lhh/