On Tue, 7 Nov 2006, Federico wrote:
it seems i have discovered the source of problems... my video acquisition card is generating strange warnings about IRQ.... bttv0: IRQ lockup, cleared int mask [bits: FMTCHG* VSYNC* HSYNC* OFLOW* HLOCK* VPRES* 6* 7* I2CDONE* GPINT* 10* RISCI* FBUS* FTRGT* FDSR* PPERR* RIPERR* PABORT* OCERR* SCERR*] ... bttv0: IRQ lockup, cleared int mask [bits: HSYNC OFLOW VPRES I2CDONE*] cause without loading the bttv module my patch seems to work ok. so sorry for allarmistic bug spam :)
I also use bttv cards and I sometimes found that [metro] and [fps] don't agree even when the CPU usage is less than 100%. It varied in irregular, hard-to-predict ways. I mean, for each [metro] rate, it's stable (except for Ruby's garbage collection), but sometimes lowering the [metro] rate makes the framerate slower instead of faster. I haven't seen that in the last two years though.
_ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju | Freelance Digital Arts Engineer, Montréal QC Canada