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html5 videos: video periodically freezes while audio continues to play. Firefox 12, Linux, Centos 5 up to date.

Posted

whenever I view a YouTube video on my linux box (Centos 5.8, fully updated) using Firefox12, YouTube always delivers the html5 video to me instead of Flash. This would be fine, but intermittently the video stops moving (while the audio keeps playing). I click the (I don't know what it's called) slider for the current position and the video will start moving again. until it pauses next time, anywhere from a few seconds to a few minutes. I don't know why it delivers html5 instead of flash, on my laptop using centos 6 and firefox12 I get flash video. Is there someway to configure Firefox to get flash instead? If not, I'd appreciate help in fixing the pausing video component.

whenever I view a YouTube video on my linux box (Centos 5.8, fully updated) using Firefox12, YouTube always delivers the html5 video to me instead of Flash. This would be fine, but intermittently the video stops moving (while the audio keeps playing). I click the (I don't know what it's called) slider for the current position and the video will start moving again. until it pauses next time, anywhere from a few seconds to a few minutes. I don't know why it delivers html5 instead of flash, on my laptop using centos 6 and firefox12 I get flash video. Is there someway to configure Firefox to get flash instead? If not, I'd appreciate help in fixing the pausing video component.

Chosen solution

You may be on the html5 trial at Youtube. http://www.youtube.com/html5

mha007, those three macromedia inks are more for Windows and not Linux.

Read this answer in context 1

Additional System Details

Sites Affected

https://www.youtube.com/watch?v=lYeN66CSQhg&feature=g-vrec

Installed Plug-ins

  • The Adobe Reader plugin is used to enable viewing of PDF and FDF files from within the browser.
  • Shockwave Flash 11.2 r202
  • The next generation Java plug-in for Mozilla browsers.
  • mplayerplug-in 3.55Video Player Plug-in for QuickTime, RealPlayer and Windows Media Player streams using MPlayer JavaScript Enabled and Using GTK2 Widgets

Application

  • User Agent: Mozilla/5.0 (X11; Linux i686; rv:12.0) Gecko/20100101 Firefox/12.0

More Information

Application Basics
Name
Firefox
Version
12.0
User Agent
Mozilla/5.0 (X11; Linux i686; rv:12.0) Gecko/20100101 Firefox/12.0
Profile Directory
Open Directory
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
Adblock Plus
2.0.3
true
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
ColorfulTabs
12.3
true
{0545b830-f0aa-4d7e-8820-50a4629a56fe}
DownloadHelper
4.9.9
true
{b9db16a4-6edc-47ec-a1f4-b86292ed211d}
EPUBReader
1.4.2.1
true
{5384767E-00D9-40E9-B72F-9CC39D655D6F}
FireGestures
1.6.16
true
firegestures@xuldev.org
HTTPS-Everywhere
2.0.5
true
https-everywhere@eff.org
Linkification
1.3.9
true
{35106bca-6c78-48c7-ac28-56df30b51d2a}
Spell Checker
1.3.2
true
gaurangnshah@gmail.com
Text Link
4.0.2011021601
true
{54BB9F3F-07E5-486c-9B39-C7398B99391C}
User Agent Switcher
0.7.3
true
{e968fc70-8f95-4ab9-9e79-304de2a71ee1}
WebMail Notifier
2.9.5
true
{37fa1426-b82d-11db-8314-0800200c9a66}
Collusion
0.16.3
false
jid1-F9UJ2thwoAm5gQ@jetpack
Mozilla Labs: Prospector - LessChrome HD
7
false
lessChrome.HD@prospector.labs.mozilla
PDF Viewer
0.3.175
false
uriloader@pdf.js
Important Modified Preferences
Name
Value
accessibility.typeaheadfind
true
accessibility.typeaheadfind.flashBar
0
browser.cache.disk.capacity
1048576
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size_cached_value
1048576
browser.places.smartBookmarksVersion
2
browser.startup.homepage
https://lwn.net/Articles/
browser.startup.homepage_override.buildID
20120420145725
browser.startup.homepage_override.mstone
rv:12.0
browser.tabs.loadInBackground
false
browser.zoom.full
false
dom.disable_window_move_resize
true
dom.event.contextmenu.enabled
false
extensions.lastAppVersion
12.0
font.size.fixed.x-western
14
gfx.blacklist.suggested-driver-version
<Anything with EXT_texture_from_pixmap support>
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1337551818
places.history.expiration.transient_current_max_pages
102821
places.history.expiration.transient_optimal_database_size
164513218
print.print_printer
HL2070-N
print.printer_HL2070-N.print_bgcolor
false
print.printer_HL2070-N.print_bgimages
false
print.printer_HL2070-N.print_colorspace
default
print.printer_HL2070-N.print_command
lpr ${MOZ_PRINTER_NAME:+-P"$MOZ_PRINTER_NAME"}
print.printer_HL2070-N.print_downloadfonts
false
print.printer_HL2070-N.print_edge_bottom
0
print.printer_HL2070-N.print_edge_left
0
print.printer_HL2070-N.print_edge_right
0
print.printer_HL2070-N.print_edge_top
0
print.printer_HL2070-N.print_evenpages
true
print.printer_HL2070-N.print_footercenter
print.printer_HL2070-N.print_footerleft
&PT
print.printer_HL2070-N.print_footerright
&D
print.printer_HL2070-N.print_headercenter
print.printer_HL2070-N.print_headerleft
&T
print.printer_HL2070-N.print_headerright
&U
print.printer_HL2070-N.print_in_color
true
print.printer_HL2070-N.print_margin_bottom
0.500000012107193
print.printer_HL2070-N.print_margin_left
0.500000012107193
print.printer_HL2070-N.print_margin_right
0.500000012107193
print.printer_HL2070-N.print_margin_top
0.500000012107193
print.printer_HL2070-N.print_oddpages
true
print.printer_HL2070-N.print_orientation
0
print.printer_HL2070-N.print_page_delay
50
print.printer_HL2070-N.print_paper_data
0
print.printer_HL2070-N.print_paper_height
279.40
print.printer_HL2070-N.print_paper_name
na_letter
print.printer_HL2070-N.print_paper_size_type
1
print.printer_HL2070-N.print_paper_size_unit
1
print.printer_HL2070-N.print_paper_width
215.90
print.printer_HL2070-N.print_plex_name
default
print.printer_HL2070-N.print_resolution_name
default
print.printer_HL2070-N.print_reversed
false
print.printer_HL2070-N.print_scaling
1.00
print.printer_HL2070-N.print_shrink_to_fit
true
print.printer_HL2070-N.print_to_file
false
print.printer_HL2070-N.print_unwriteable_margin_bottom
0
print.printer_HL2070-N.print_unwriteable_margin_left
0
print.printer_HL2070-N.print_unwriteable_margin_right
0
print.printer_HL2070-N.print_unwriteable_margin_top
0
print.printer_Print_to_File.print_bgcolor
false
print.printer_Print_to_File.print_bgimages
false
print.printer_Print_to_File.print_colorspace
default
print.printer_Print_to_File.print_command
lpr ${MOZ_PRINTER_NAME:+-P"$MOZ_PRINTER_NAME"}
print.printer_Print_to_File.print_downloadfonts
false
print.printer_Print_to_File.print_edge_bottom
0
print.printer_Print_to_File.print_edge_left
0
print.printer_Print_to_File.print_edge_right
0
print.printer_Print_to_File.print_edge_top
0
print.printer_Print_to_File.print_evenpages
true
print.printer_Print_to_File.print_footercenter
print.printer_Print_to_File.print_footerleft
&PT
print.printer_Print_to_File.print_footerright
&D
print.printer_Print_to_File.print_headercenter
print.printer_Print_to_File.print_headerleft
&T
print.printer_Print_to_File.print_headerright
&U
print.printer_Print_to_File.print_in_color
true
print.printer_Print_to_File.print_margin_bottom
0.500000012107193
print.printer_Print_to_File.print_margin_left
0.500000012107193
print.printer_Print_to_File.print_margin_right
0.500000012107193
print.printer_Print_to_File.print_margin_top
0.500000012107193
print.printer_Print_to_File.print_oddpages
true
print.printer_Print_to_File.print_orientation
0
print.printer_Print_to_File.print_page_delay
50
print.printer_Print_to_File.print_paper_data
0
print.printer_Print_to_File.print_paper_height
279.40
print.printer_Print_to_File.print_paper_name
na_letter
print.printer_Print_to_File.print_paper_size_type
1
print.printer_Print_to_File.print_paper_size_unit
1
print.printer_Print_to_File.print_paper_width
215.90
print.printer_Print_to_File.print_plex_name
default
print.printer_Print_to_File.print_resolution_name
default
print.printer_Print_to_File.print_reversed
false
print.printer_Print_to_File.print_scaling
1.00
print.printer_Print_to_File.print_shrink_to_fit
true
print.printer_Print_to_File.print_to_file
false
print.printer_Print_to_File.print_unwriteable_margin_bottom
0
print.printer_Print_to_File.print_unwriteable_margin_left
0
print.printer_Print_to_File.print_unwriteable_margin_right
0
print.printer_Print_to_File.print_unwriteable_margin_top
0
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_colorspace
false
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_downloadfonts
false
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_jobtitle
false
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_num_copies
true
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_orientation
true
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_paper_size
true
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_plex
false
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_printincolor
true
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_resolution
false
print.tmp.printerfeatures.CUPS/HL2070-N.can_change_spoolercommand
false
print.tmp.printerfeatures.CUPS/HL2070-N.colorspace.0.name
default
print.tmp.printerfeatures.CUPS/HL2070-N.colorspace.count
1
print.tmp.printerfeatures.CUPS/HL2070-N.has_special_printerfeatures
true
print.tmp.printerfeatures.CUPS/HL2070-N.orientation.0.name
portrait
print.tmp.printerfeatures.CUPS/HL2070-N.orientation.1.name
landscape
print.tmp.printerfeatures.CUPS/HL2070-N.orientation.count
2
print.tmp.printerfeatures.CUPS/HL2070-N.paper.0.height_mm
210
print.tmp.printerfeatures.CUPS/HL2070-N.paper.0.is_inch
false
print.tmp.printerfeatures.CUPS/HL2070-N.paper.0.name
A5
print.tmp.printerfeatures.CUPS/HL2070-N.paper.0.width_mm
148
print.tmp.printerfeatures.CUPS/HL2070-N.paper.1.height_mm
297
print.tmp.printerfeatures.CUPS/HL2070-N.paper.1.is_inch
false
print.tmp.printerfeatures.CUPS/HL2070-N.paper.1.name
A4
print.tmp.printerfeatures.CUPS/HL2070-N.paper.1.width_mm
210
print.tmp.printerfeatures.CUPS/HL2070-N.paper.2.height_mm
420
print.tmp.printerfeatures.CUPS/HL2070-N.paper.2.is_inch
false
print.tmp.printerfeatures.CUPS/HL2070-N.paper.2.name
A3
print.tmp.printerfeatures.CUPS/HL2070-N.paper.2.width_mm
297
print.tmp.printerfeatures.CUPS/HL2070-N.paper.3.height_mm
279
print.tmp.printerfeatures.CUPS/HL2070-N.paper.3.is_inch
true
print.tmp.printerfeatures.CUPS/HL2070-N.paper.3.name
Letter
print.tmp.printerfeatures.CUPS/HL2070-N.paper.3.width_mm
215
print.tmp.printerfeatures.CUPS/HL2070-N.paper.4.height_mm
355
print.tmp.printerfeatures.CUPS/HL2070-N.paper.4.is_inch
true
print.tmp.printerfeatures.CUPS/HL2070-N.paper.4.name
Legal
print.tmp.printerfeatures.CUPS/HL2070-N.paper.4.width_mm
215
print.tmp.printerfeatures.CUPS/HL2070-N.paper.5.height_mm
431
print.tmp.printerfeatures.CUPS/HL2070-N.paper.5.is_inch
true
print.tmp.printerfeatures.CUPS/HL2070-N.paper.5.name
Tabloid
print.tmp.printerfeatures.CUPS/HL2070-N.paper.5.width_mm
279
print.tmp.printerfeatures.CUPS/HL2070-N.paper.6.height_mm
254
print.tmp.printerfeatures.CUPS/HL2070-N.paper.6.is_inch
true
print.tmp.printerfeatures.CUPS/HL2070-N.paper.6.name
Executive
print.tmp.printerfeatures.CUPS/HL2070-N.paper.6.width_mm
190
print.tmp.printerfeatures.CUPS/HL2070-N.paper.count
7
print.tmp.printerfeatures.CUPS/HL2070-N.plex.0.name
default
print.tmp.printerfeatures.CUPS/HL2070-N.plex.count
1
print.tmp.printerfeatures.CUPS/HL2070-N.resolution.0.name
default
print.tmp.printerfeatures.CUPS/HL2070-N.resolution.count
1
print.tmp.printerfeatures.CUPS/HL2070-N.supports_colorspace_change
false
print.tmp.printerfeatures.CUPS/HL2070-N.supports_downloadfonts_change
false
print.tmp.printerfeatures.CUPS/HL2070-N.supports_jobtitle_change
false
print.tmp.printerfeatures.CUPS/HL2070-N.supports_orientation_change
true
print.tmp.printerfeatures.CUPS/HL2070-N.supports_paper_size_change
true
print.tmp.printerfeatures.CUPS/HL2070-N.supports_plex_change
false
print.tmp.printerfeatures.CUPS/HL2070-N.supports_printincolor_change
true
print.tmp.printerfeatures.CUPS/HL2070-N.supports_resolution_change
false
print.tmp.printerfeatures.CUPS/HL2070-N.supports_spoolercommand_change
false
print.tmp.printerfeatures.HL2070-N.can_change_colorspace
false
print.tmp.printerfeatures.HL2070-N.can_change_downloadfonts
false
print.tmp.printerfeatures.HL2070-N.can_change_jobtitle
false
print.tmp.printerfeatures.HL2070-N.can_change_num_copies
true
print.tmp.printerfeatures.HL2070-N.can_change_orientation
true
print.tmp.printerfeatures.HL2070-N.can_change_paper_size
true
print.tmp.printerfeatures.HL2070-N.can_change_plex
false
print.tmp.printerfeatures.HL2070-N.can_change_printincolor
true
print.tmp.printerfeatures.HL2070-N.can_change_resolution
false
print.tmp.printerfeatures.HL2070-N.can_change_spoolercommand
false
print.tmp.printerfeatures.HL2070-N.colorspace.0.name
default
print.tmp.printerfeatures.HL2070-N.colorspace.count
1
print.tmp.printerfeatures.HL2070-N.has_special_printerfeatures
true
print.tmp.printerfeatures.HL2070-N.orientation.0.name
portrait
print.tmp.printerfeatures.HL2070-N.orientation.1.name
landscape
print.tmp.printerfeatures.HL2070-N.orientation.count
2
print.tmp.printerfeatures.HL2070-N.paper.0.height_mm
210
print.tmp.printerfeatures.HL2070-N.paper.0.is_inch
false
print.tmp.printerfeatures.HL2070-N.paper.0.name
A5
print.tmp.printerfeatures.HL2070-N.paper.0.width_mm
148
print.tmp.printerfeatures.HL2070-N.paper.1.height_mm
297
print.tmp.printerfeatures.HL2070-N.paper.1.is_inch
false
print.tmp.printerfeatures.HL2070-N.paper.1.name
A4
print.tmp.printerfeatures.HL2070-N.paper.1.width_mm
210
print.tmp.printerfeatures.HL2070-N.paper.2.height_mm
420
print.tmp.printerfeatures.HL2070-N.paper.2.is_inch
false
print.tmp.printerfeatures.HL2070-N.paper.2.name
A3
print.tmp.printerfeatures.HL2070-N.paper.2.width_mm
297
print.tmp.printerfeatures.HL2070-N.paper.3.height_mm
279
print.tmp.printerfeatures.HL2070-N.paper.3.is_inch
true
print.tmp.printerfeatures.HL2070-N.paper.3.name
Letter
print.tmp.printerfeatures.HL2070-N.paper.3.width_mm
215
print.tmp.printerfeatures.HL2070-N.paper.4.height_mm
355
print.tmp.printerfeatures.HL2070-N.paper.4.is_inch
true
print.tmp.printerfeatures.HL2070-N.paper.4.name
Legal
print.tmp.printerfeatures.HL2070-N.paper.4.width_mm
215
print.tmp.printerfeatures.HL2070-N.paper.5.height_mm
431
print.tmp.printerfeatures.HL2070-N.paper.5.is_inch
true
print.tmp.printerfeatures.HL2070-N.paper.5.name
Tabloid
print.tmp.printerfeatures.HL2070-N.paper.5.width_mm
279
print.tmp.printerfeatures.HL2070-N.paper.6.height_mm
254
print.tmp.printerfeatures.HL2070-N.paper.6.is_inch
true
print.tmp.printerfeatures.HL2070-N.paper.6.name
Executive
print.tmp.printerfeatures.HL2070-N.paper.6.width_mm
190
print.tmp.printerfeatures.HL2070-N.paper.count
7
print.tmp.printerfeatures.HL2070-N.plex.0.name
default
print.tmp.printerfeatures.HL2070-N.plex.count
1
print.tmp.printerfeatures.HL2070-N.resolution.0.name
default
print.tmp.printerfeatures.HL2070-N.resolution.count
1
print.tmp.printerfeatures.HL2070-N.supports_colorspace_change
false
print.tmp.printerfeatures.HL2070-N.supports_downloadfonts_change
false
print.tmp.printerfeatures.HL2070-N.supports_jobtitle_change
false
print.tmp.printerfeatures.HL2070-N.supports_orientation_change
true
print.tmp.printerfeatures.HL2070-N.supports_paper_size_change
true
print.tmp.printerfeatures.HL2070-N.supports_plex_change
false
print.tmp.printerfeatures.HL2070-N.supports_printincolor_change
true
print.tmp.printerfeatures.HL2070-N.supports_resolution_change
false
print.tmp.printerfeatures.HL2070-N.supports_spoolercommand_change
false
privacy.donottrackheader.enabled
true
privacy.sanitize.migrateFx3Prefs
true
security.OCSP.disable_button.managecrl
false
security.disable_button.openCertManager
false
security.disable_button.openDeviceManager
false
security.warn_viewing_mixed
false
webgl.prefer-native-gl
true
Graphics
Adapter Description
GLXtest process failed (received signal 11)
WebGL Renderer
Blocked for your graphics card because of unresolved driver issues.
GPU Accelerated Windows
0. Blocked for your graphics driver version. Try updating your graphics driver to version <Anything with EXT_texture_from_pixmap support> or newer.
AzureBackend
skia

Hasan 469 solutions 5600 answers

Perform the suggestions mentioned in the following articles:

Check and tell if its working.


IF it still doesn't work, then Start Firefox in -> Troubleshoot Firefox issues using Safe Mode to check if your add-ons/extensions are causing the problems.

Check and tell if its working normally while using Firefox in Troubleshoot Firefox issues using Safe Mode.

You can also try to clear the Flash cookies as mentioned in the following articles:

  1. Flash Website Storage Settings panel:
  2. Global Storage Settings Panel:
  3. Flash Local storage settings Help:
Perform the suggestions mentioned in the following articles: * [https://support.mozilla.com/en-US/kb/Template:clearCookiesCache Clear Cookies & Cache] * [[How to clear the cache#w_clear-the-cache|Clear the Network Cache]] Check and tell if its working. ------------------------------------------------------------------------------------------------------------- IF it still doesn't work, then Start Firefox in -> [[Safe Mode]] to check if your add-ons/extensions are causing the problems. * Also see this article -> [[Troubleshooting extensions and themes]] Check and tell if its working normally while using Firefox in [[Safe Mode]]. You can also try to clear the Flash cookies as mentioned in the following articles: # Flash Website Storage Settings panel: #* http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html # Global Storage Settings Panel: #* http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager03.html # Flash Local storage settings Help: #* http://www.macromedia.com/support/documentation/en/flashplayer/help/help02.html

Modified by Hasan

James
  • Top 25 Contributor
  • Moderator
1602 solutions 11337 answers

Chosen Solution

You may be on the html5 trial at Youtube. http://www.youtube.com/html5

mha007, those three macromedia inks are more for Windows and not Linux.

You may be on the html5 trial at Youtube. http://www.youtube.com/html5 mha007, those three macromedia inks are more for Windows and not Linux.

Question owner

Problem solved. went to the youtube.com/html5 page and removed myself from the html5 trial.

It would be nice to fix the problem so I can continue to use html5, instead of now needing flash to work. but at least the videos don't keep misbehaving.

Problem solved. went to the youtube.com/html5 page and removed myself from the html5 trial. It would be nice to fix the problem so I can continue to use html5, instead of now needing flash to work. but at least the videos don't keep misbehaving.
user719405 0 solutions 1 answers

I added the following line to my /etc/environment to force vsync:

CLUTTER_PAINT=disable-clipped-redraws:disable-culling

Commenting it out fixed the video rendering issue for me:

#CLUTTER_PAINT=disable-clipped-redraws:disable-culling

This is on Intel Integrated Graphics (Intel Pentium G620) with the latest xf86-video-intel drivers, might not work for different configurations.

I added the following line to my /etc/environment to force vsync: CLUTTER_PAINT=disable-clipped-redraws:disable-culling Commenting it out fixed the video rendering issue for me: #CLUTTER_PAINT=disable-clipped-redraws:disable-culling This is on Intel Integrated Graphics (Intel Pentium G620) with the latest xf86-video-intel drivers, might not work for different configurations.

Modified by user719405