Culture Secretary Fiona Hyslop will not be recalled before MSPs to face more questions on the £150,000 of public money handed to T in the Park.
Holyrood's Education and Culture Committee said it would follow up in writing on Ms Hyslop's evidence last week on the funding decision and allegations of cronyism.
Opposition MSPs had called for the Culture Secretary to be brought back before them, claiming she had failed to provide satisfactory answers to their questions.
The decision was taken as it emerged that festival promoter DF Concerts recorded a pre-tax profit of £6.2 million last year.
Committee convener and SNP MSP Stewart Maxwell said: "After a discussion at today's committee meeting, the committee unanimously agreed to follow its normal practice and follow up the evidence session with the Cabinet Secretary for Culture, Europe and External Affairs in writing.
"This letter will be issued today and we will await the Cabinet Secretary's response."
The Culture Secretary had been asked to explain the circumstances in which the state aid was awarded after it emerged former SNP adviser Jennifer Dempsie set up meetings between DF Concerts and ministers including Ms Hyslop ahead of the application for the funding.
Ms Dempsie was working on a contract for DF Concerts as a project manager on the festival, which moved to a new location at Strathallan this year.
Ms Hyslop told the committee that organisers had warned they could move out of Scotland unless they could address the ''severely reduced revenues'' associated with its relocation.
She insisted she had acted properly and the funding from the major events budget had been approved "following a detailed consideration of options" for operational costs associated with the transition to the festival's new site.
Liberal Democrat MSP Liam McArthur said: "At committee last week the culture secretary told us in no uncertain terms that the state aid deal brokered by Alex Salmond's former special adviser was agreed on the basis that there was a real risk of shareholders forcing T in the Park to leave Scotland.
"These company accounts call into question the extent of any such risk.
"We now know that SNP ministers, on the urging of a former SNP adviser, awarded £150,000 of taxpayer funding to a company which had generated record pre-tax profits the previous year.
"I am pleased that the culture committee will now write to the Culture Secretary seeking detailed answers to the serious questions that have been raised. We need to get to the bottom of this urgently."
Scottish Conservative culture spokeswoman Liz Smith said: "The Scottish Government still have a lot of explaining to do surrounding the criteria by which £150,000 of taxpayers' money was given to a successful and profit-making company.
"This is exactly the reason why Culture Secretary Fiona Hyslop must be forced to explain to Parliament the factors and case for such a significant grant to be provided."
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