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Almost every time I use YouTube in fullscreen it freezes and doesn't let me back to the desktop.

I want to know if it's possible close to it through the terminal or something like that. Something easier then reboot the PC all the time.

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Can you do Ctrl+Alt+F1? You can comeback using Ctrl+Alt+F7. –  Seth Feb 5 '13 at 0:51
(1) This looks like a bug in Adobe Flash, and therefore should not be posted as a question in Ask Ubuntu. Instead, you should report it to Adobe. (2) Have you tried using the HTML5 version of YouTube? –  InkBlend Feb 5 '13 at 0:59
I'm not sure it's a bug with Flash even though it does involve Flash. Let's see if OP comes back with more information such as the browser, hardware specs (CPU, RAM, graphics card, etc). If you're sure it's a bug, could you please provide the appropriate link? –  user25656 Feb 5 '13 at 5:12
I have (probably) the same problem. Sometimes flashplayer hangs in fullscreen (only noticed it on youtube), it mostly seems to happen with 1080p, but probably depends on load. For me it have occurred both on my stationary (i7, ati with fglrx 13.0) and my laptop (i5, integrated graphics). I can always solve the problem by bringing up a terminal on another desktop and kill flashplayer. –  Torandi Feb 6 '13 at 0:17
Ctrl+Alt+F2 to open command line, right? It's works, but when back with Ctrl+Alt+F7, just show a grey or white screen. –  euDennis Feb 6 '13 at 10:49

2 Answers 2

The adobe-flash-player needs to be installed as shown below -

  1. Go to http://get.adobe.com/flashplayer/?no_redirect

  2. Select "APT for Ubuntu 10.04+"

  3. Click Download now & open the apt link with /usr/bin/software-center

Or, else try running the following commands:

sudo mkdir /etc/adobe
echo \"OverrideGPUValidation = 1\" | sudo tee -a /etc/adobe/mms.cfg


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If you can open the terminal :

try pkill -9 firefox

or change Firefox , if you are using another browser .

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