The VideoLAN Forums

>> likely a cross-platform issue. >> I doubt it is not a cross-platform issue. Just to add a note that this Stuttering is also happening on my Mac OS X systems: MacMini+Lion and MacBookPro+M-Lion. Do you have a bootcamp install of Windows on one of those Macs? If so, can you check if stuttering occ...

I've disabled EPU Engine now, and am allowing Windows to adjust CPU clock speed and voltage (FSB appears to not be dynamically adjusted though). There are still a few scattered debug messages regarding up-sampling and down-sampling, but audio/video timing (to the eye) is correct, also there's no stu...

The goal is adaptive CPU scaling enabled, and smooth VLC playback, at the same time. You can't have both. Read up like one post before your first. Under Linux, CPU scaling works and VLC playback is smooth on the same affected hardware. I have no emotional attachment to the EPU engine software; if i...

Having it on the normal "air-plane" mode didn't make VLC glitch, but other modes did. It's not only VLC this EPU 6 Engine affects, I've had problems with non-synced audio in some games. Having it always on the normal mode, though, makes the CPU fan quite noisy. So, I went to my BIOS confi...

Tested VLC 2.1.0 on an affected machine - Issue exists in Windows (with EPU Engine active), but does not exist in Linux (Ubuntu 12.10). The CPU frequencies are still being adjusted on the fly, just not by the Asus utility.

Is this expected?

I've tested setting the clock source to: perf, interrupt, tick, multimedia, wall, and leaving it as null. Unfortunately, none of the sources appear to change the playback (I'm also missing debug events that a new clock source has been selected, or if it's invalid). I haven't cycled through different...

Scaling CPU frequency down causes "buffer too early" messages. Scaling CPU frequency up causes "buffer too late" messages. 1.6GHz (bus at 133MHz) video/audio is stable, but buffer too late messages still appearing, but less frequently. Edit: I should clarify that I'm not looking ...

I'm also experiencing this issue on one of my computers, but not on my others.
Is there anything I can do to help gather more info?

I'm not a pro coder, but I work in IT - and am willing to put in time to squash this bug.