I was using the 4.6 kernel because of testing another bug and the mentioned behavior was produced with that kernel. I was not able to reproduce this with the 4.4 kernel until now, but I will continue testing.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1600577 Title: Fullscreen videos stuttering in Firefox Status in firefox package in Ubuntu: New Bug description: All full screen videos are heavily stuttering in Firefox. The stuttering is very heavy, it basically stops for a few seconds then jumps to a next frame, again stops for a few seconds then again jumps to a next frame. There is absolutely no continuous play, it just jumps from one frame to the other. Sound is continuous while while this is happening. Videos in Chromium work fine. Restarting Firefox does not help. Restarting gnome-shell does not help. When I restart the whole computer it is okay for a short time, but it gets into this state very quickly. Although this happens in Firefox I'm not sure if this is a Firefox bug or a bug in some underlying infrastructure like xorg or video driver. I would be happy to debug this if someone could tell me in where I should start. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: firefox 47.0+build3-0ubuntu0.16.04.1 ProcVersionSignature: Error: [Errno 2] No such file or directory: '/proc/version_signature' Uname: Linux 4.6.2-040602-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: viktor 2428 F.... pulseaudio /dev/snd/pcmC1D0p: viktor 2428 F...m pulseaudio /dev/snd/controlC1: viktor 2428 F.... pulseaudio BuildID: 20160606113944 Channel: Unavailable CurrentDesktop: GNOME Date: Sun Jul 10 12:08:04 2016 DefaultProfileIncompatibleExtensions: English (South Africa) Language Pack - langpack-en...@firefox.mozilla.org English (GB) Language Pack - langpack-en...@firefox.mozilla.org Default - {972ce4c6-7e08-4474-a285-3208198ce6fd} DefaultProfilePlugins: Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell) Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so DefaultProfilePrefSources: prefs.js [Profile]/extensions/{3d7eb24f-2740-49df-8937-200b1cc08f8a}/defaults/preferences/flashblock.js [Profile]/extensions/foxma...@kei.com/defaults/preferences/prefs.js ForcedLayersAccel: False IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback IpRoute: default via 10.10.10.1 dev wlp2s0 proto static metric 600 10.10.10.0/24 dev wlp2s0 proto kernel scope link src 10.10.10.251 metric 600 169.254.0.0/16 dev docker0 scope link metric 1000 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 MostRecentCrashID: bp-581b158a-e18d-4af8-8bea-d226e2160318 Profile1IncompatibleExtensions: English (South Africa) Language Pack - langpack-en...@firefox.mozilla.org English (GB) Language Pack - langpack-en...@firefox.mozilla.org Default - {972ce4c6-7e08-4474-a285-3208198ce6fd} Profile1Plugins: Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell) iTunes Application Detector - /usr/lib/mozilla/plugins/librhythmbox-itms-detection-plugin.so IcedTea-Web Plugin (using IcedTea-Web 1.5.3 (1.5.3-0ubuntu0.15.10.1)) - /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so Profile1PrefSources: prefs.js [Profile]/extensions/{3d7eb24f-2740-49df-8937-200b1cc08f8a}/defaults/preferences/flashblock.js Profile2IncompatibleExtensions: English (South Africa) Language Pack - langpack-en...@firefox.mozilla.org English (GB) Language Pack - langpack-en...@firefox.mozilla.org Default - {972ce4c6-7e08-4474-a285-3208198ce6fd} Profile2Plugins: Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell) Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so Profile2PrefSources: prefs.js [Profile]/extensions/{3d7eb24f-2740-49df-8937-200b1cc08f8a}/defaults/preferences/flashblock.js [Profile]/extensions/foxma...@kei.com/defaults/preferences/prefs.js Profile3Extensions: extensions.sqlite corrupt or missing Profile3IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) Profile3Locales: extensions.sqlite corrupt or missing Profile3Plugins: Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell) Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so Profile3PrefSources: prefs.js Profile3Themes: extensions.sqlite corrupt or missing Profile4Extensions: extensions.sqlite corrupt or missing Profile4IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) Profile4Locales: extensions.sqlite corrupt or missing Profile4PrefSources: prefs.js Profile4Themes: extensions.sqlite corrupt or missing Profile5Extensions: extensions.sqlite corrupt or missing Profile5IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) Profile5Locales: extensions.sqlite corrupt or missing Profile5Plugins: Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell) Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so Profile5PrefSources: prefs.js Profile5Themes: extensions.sqlite corrupt or missing RunningIncompatibleAddons: True SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/18/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A11 dmi.board.name: 0JPRM5 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA11:bd11/18/2015:svnDellInc.:pnLatitudeE5550:pvr:rvnDellInc.:rn0JPRM5:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E5550 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1600577/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp