Jude Bellingham came off the bench to score late on as Real Madrid laboured to a 2-0 win over relegated Real Oviedo amid more protests against under-fire president Florentino Perez.
The build-up to the match had seen Perez vow to continue leading the club following two seasons without a trophy.
Perez said he would not resign from his position during a heated press conference on Tuesday, but called for elections to allow any would-be opponents to stand against him.
As the match started at a significantly less-than-full Bernabeu, there appeared to be a brief argument between Perez and some fans near the hospitality boxes.
Around 10 minutes in, a banner reading "Florentino, leave now" appeared in one of the stands, before it was swiftly removed by security staff.
After what had been a low-key opening, Gonzalo Garcia put Real Madrid ahead just before half-time, with England midfielder Bellingham coming off the bench to eventually add a well-taken second goal with 10 minutes left.
