[iras]

Hi,

I'm experiencing some heavy stuttering in 1080p video decoding on a machine with hardware that should be fast enough to play 4k videos smoothly.

Hardware: ASUS H97I-Plus Motherboard with Intel i5-4590T (Intel HD Graphic 4600 integrated) and 8 Gb DD3 1600 Mhz CL9 Dual Channel Kit.
Software: Ubuntu Gnome 14.04 running mainline kernel 3.14.1

Playing a video with VLC in 1080p runs with no problems at 23.98 Hz. Also I purged kodi removed ppa and installed xbmc 13.2 and can whatch videos in 1080 at 23.98 Hz. I would prefer using the latest stable release of kodi but with kodi 1080p videos (h264 - I don't have others) are stuttering with frame rates between 18 and 30 fps.

vaapi is enabled and playing a video the statistic overlay shows "dc:ff-h264-vaapi".

Here is a log with debugging enabled:
http://pastebin.com/SbkwMBFh

[fritsch]

Same issues with local files, can you post a new debulog (enable VIDEO and Audio component logging) with this one from local disk, please: https://dl.dropboxusercontent.com/u/5572...lannad.mkv

[iras]

this video is not stuttering, but here is the log file:
http://pastebin.com/cYKZU0T1

the other videos are stuttering with and without network (after copying to local file system). i've seen that the videos are not stuttering without hardware acceleration. so i checked if vlc is using vaapi - and in fact it does not.

[iras]

I've just realized that my sound is not working. i think that's the problem with the videos with sound.. even sd videos with mp3 sound are stuttering... :-(
I'll try to fix this first

[iras]

after fixing the sound for h97 chipset the videos are not stuttering anymore.. thanks a lot

for other users with this problem using a h97 chipset follow the workaround at this thread:
https://bugs.launchpad.net/ubuntu/+sourc...ug/1321421

[fritsch]

I would suggest upgrading the kernel anyways cause of GPU hangs, this should not make that workaround necessary. See my sticky VAAPI post on howto do so.