Forums » General Questions » Random Hitching?

I compile SM5 from source on Linux. Overall framerate seems alright most of the time during gameplay, but there will sometimes be periods of hitching (notes will stop moving; pretty sure the song/sound is unaffected). OpenITG on the same computer plays flawlessly.

I use some single-core AMD processor and a Radeon HD 2400 (DRI3, SwapbuffersWait disabled and with vblank_mode=0), openSUSE TW (x64), alsa-sw, SM5 compiled with O3 (Ofast didn't make a difference), play at 640x480@85Hz, and use Fast Note rendering with the default SM home theme and I think midi-note noteskin (2D).

Is there anything I might be able to do to either find the cause of the hitching or to fix it?