There were substantial runors in the 1990s that some viruses could trash color monitors ot color displsy cards.
Other than that I have not seen any writeups of doing worse than altering BIOS or trashing your data on the HD, which is bad enough.
Since it is impossible to prove a negative assertion, e.g. I cannot disprove the existence of green polar bears, one can only say, "Not seen, at least uncommon.".
J, Inventor/designer Quarantine A-V, 1988, Best of Yearr, LAN Magaxine.