DPMS will keep switching monitor on and off

Some time ago there was a patch [1] merged in which was designed to fix DPMS (monitor would go on/off all the time [2] instead of just going off), I was happy to see this one but unfortunately it doesn't work for me - I still experience the same behaviour. I'm terrible lazy so I didn't report it before but seeing that some "unrelated" change might be the cause of bug in dri code (as in #42162) got me wondering.

Should I open a bug report for it ?

[1] 73104b5cfe3067d68f2c2de3f3d4d4964c55873e [2] https://bugzilla.redhat.com/show_bug.cgi?id=728228