Getting flash/youtube to work well is unfortunately wishlist territory since they have yet to enable hw acceleration.
In theory, gstreamer is meant to support the video decode engine inside your Ivybridge GPU using va-api. I believe VLC also has a va-api mode, but last I checked it was using an inferior GL engine. mplayer -vo xv uses the last amount of acceleration (the GPU is only used for colorspace conversion and rendering of the result), and amusingly it is the one that uses the least CPU on my system. So my Sandybridge mba can manage playing the 2k Sintel mp4 with plenty to spare. Can you grab the 2k mp4 and the 1080p mkv versions of Sintel and use that to baseline performance of your system? For example, mplayer -benchmark -frames 500 -nosound $sintel -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1103236 Title: Choppy and pixelated video on Macbook Air 5,1. Unable to run/view HD videos at all Status in “xserver-xorg-video-intel” package in Ubuntu: New Bug description: *** I reported this as a question on Ask Ubuntu and was told this is a bug. http://askubuntu.com/questions/245584/choppy-and-pixelated-video- on-macbook-air-5-1-unable-to-run-view-hd-videos-at-a *** I'm currently running 13.04 and the video is extremely choppy and pixelated on any video program I run (vlc, mplayer, totem etc.), any flash or html5 videos, and HD videos won't play in a reasonable way at all (entire frames get skipped and video footage is completely distorted; I would say it's about 10 FPS on HD videos, really extremely bad quality). Also, I had this exact problem on 12.04 and 12.10 and was kind of hoping 13.04 would be better, but it is not. Video in Mac OSX works excellent, no lag or quality loss, works perfect in that OS. I would attach some sort of log file but I don't know how and would need directions to do so. Specs - Macbook Air 5,1 ,8 gig ram , 256 ssd , Intel® Core™ i7-3667U CPU @ 2.00GHz × 4 , Intel® Ivybridge Mobile *-display description: VGA compatible controller product: 3rd Gen Core processor Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:46 memory:a0000000-a03fffff memory:90000000-9fffffff ioport:2000(size=64) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1103236/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
