Public bug reported: After upgrading Ubuntu from 10.04 to 12.04, I have been using Pandora (pandora.com) for listening to streaming music. Sometimes, the music is skipping, repeating, or lagging.
The problem occurs most while either running another program besides the web browser or when the browser is downloading web pages. The problem is NOT worsened by interacting with the launcher or Dash, except that the mouse movements also skip or lag at the same time as the audio. A few times during these periods of incident, as the symptoms were at a max, Pandora stopped trying to play the current song and switched to the next song. Web page scrolling is also affected during the skipping. I have been watching the system monitor graphs and both CPU and memory are well below 100%. I have experienced this both in Firefox and Chrome. I asked for help in the #ubuntu IRC channel and was told to report this here as a possible bug. I have also looked at the question at the link below, but the answer does not seem like a full solution since it requires the user to manually choose a CPU level, requiring knowledge of which setting is right, such that the user could choose a setting that overclocks the processor. http://askubuntu.com/questions/128848/high-cpu-usage-while-playing-flash-on-ubuntu-12-04-amd64 Pandora and audio playback were working perfectly right before the upgrade to Ubuntu 12.04. I update my system daily. Rebooting did not help. Full list of steps: 1. Install Ubuntu 12.04 and nvidia driver. 2. Use Unity 2d. 3. In Firefox or Chrome, log into pandora.com and play music. 4. While music is playing, open several other pages in other tabs. Also, open software center and search for various packages. Listen for music to skip, repeat, or lag, and for mouse to skip and lag. Thank you for the assistance. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: firefox 12.0+build1-0ubuntu0.12.04.1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic-pae 3.2.14 Uname: Linux 3.2.0-24-generic-pae i686 NonfreeKernelModules: nvidia AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jon 1655 F.... pulseaudio /dev/snd/pcmC0D0p: jon 1655 F...m pulseaudio BuildID: 20120423122624 Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xdfffc000 irq 46' Mixer name : 'SigmaTel STAC9200' Components : 'HDA:83847690,102801cc,00102201' Controls : 14 Simple ctrls : 7 Channel: release Date: Sat May 5 00:41:47 2012 ExecutablePath: /usr/lib/firefox/plugin-container ForcedLayersAccel: False IfupdownConfig: auto lo iface lo inet loopback IpRoute: default via 192.168.0.1 dev wlan0 proto static 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.5 metric 2 ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash Profiles: Profile0 (Default) - LastVersion=12.0/20120423122624 (Running) RunningIncompatibleAddons: False SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/23/2006 dmi.bios.vendor: Dell Inc. dmi.bios.version: A01 dmi.board.name: 0JF242 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA01:bd03/23/2006:svnDellInc.:pnLatitudeD820:pvr:rvnDellInc.:rn0JF242:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Latitude D820 dmi.sys.vendor: Dell Inc. ** Affects: firefox (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 precise release-channel -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/994987 Title: Flash plugin skips and lags intermittently while using other programs and browser tabs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/994987/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs