The phrase "about a discussion of" is correct and usable in written English.
It can be used when referring to the subject matter or theme of a conversation or dialogue.
Example: "The article is about a discussion of the impact of climate change on global economies."
Alternatives: "regarding a conversation about" or "concerning a dialogue on".
However, despite worrying about a discussion of racial politics, he says that the new political atmosphere does not affect his writing.
The New Yorker, June 26 , 1995P. 57 Talk story about a discussion of humor at the Hawthornden Literary Institute Retreat.
It must also be said there is one big omission in his film: how about a discussion of the most brutally capitalist business of all – the movie business?
A Cambridge, Mass., dispatch last Sunday about a discussion of poverty conducted during Harvard University's observance of its 350th anniversary omitted part of a comment from Senator Daniel Patrick Moynihan, Democrat of New York.
An article on April 2 about a discussion of global affairs at Wetlands, a nightclub, referred incorrectly to the presidential endorsement of the Green Party of New York State.
WEEKEND An entry in the Spare Times listings in some editions on Friday about a discussion of Massimo Vignelli's subway map on Tuesday at the New York Transit Museum, in Brooklyn Heights, misidentified the designer of a subway map used by the Metropolitan Transportation Authority.
RIDGEWOOD PUBLIC LIBRARY "Finally, a Novel About Ridgewood," a discussion of "The House: 1916," by E. C. Norton.
When helping patients make shared decisions about treatment options, a discussion of potential long-term sexual effects should be included.
Their conversations about love and sex sound about as erotic as a discussion of accounting practices.
What would bring about a serious discussion of guns by our politicians?
Inevitably, a conversation about Silicon Beach turns into a discussion of its merits compared to Silicon Valley.
