I was also having this issue. If you prefer to use Compton, using xautolock with xtrlock can meet your needs in the meantime… https://tuxdiary.com/2015/01/07/xautolock/
I was also having this issue. If you prefer to use Compton, using xautolock with xtrlock can meet your needs in the meantime… https://tuxdiary.com/2015/01/07/xautolock/