Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I have a Microsoft LifeCam VX-700 webcam, and it was working okay until yesterday when it started blinking for no reason.

I haven't changed any settings, or even used it recently.

And now it comes and goes, without me doing anything.

Could this be caused by a software update that was released recently?

I'm running Ubuntu 12.04 LTS.

share|improve this question
Can you test it on another PC? –  konrad Jun 28 '12 at 9:00
I don't have access to another PC, but it doesn't do that on Windows 7, so it's not a hardware thing. –  Mahmoud Hossam Jun 28 '12 at 9:18
Enter this command in a Terminal: tail -f /var/log/syslog then plug in your webcam. To you get any output? See also this askubuntu.com/questions/73357/… –  konrad Jun 28 '12 at 11:16

2 Answers 2

If it starts blinking when you access flash in Google Chrome, it might be caused by a bug in their Pepper-based Flashplayer. To fix it, go to about:plugins in Chrome, click +Details to expand all items, then disable the plugin /opt/google/chrome/PepperFlash/libpepflashplayer.so. Leave the regular libflashplayer.so plugin enabled, or install it if you need to. Should stop the blinking.

share|improve this answer

@spitecho: Your solution fixes the webcam problem, but then it deteriorates flash in chrome. Before your solution I was able to watch full screen videos on youtube in a relatively fluent way, after the fix it was back to the old chopped ways I knew before I used Chrome (the fact that only Chrome continues flash development on Linux was the reason I moved from chromium to Chrome in the first place, so if the webcam fix breaks flash, unfortunately that doesn't solve it for me).

I filed a bug report today:


Anyone with the same problem feel free to add that it affects you too in the hope that this thing gets fixed quickly.

share|improve this answer
+1 and thanks for filing the bug report, I just confirmed it affects me too. This has slowed my Chrome to a crawl for the last few weeks and I couldn't troubleshoot it. –  Tom Brossman Sep 6 '12 at 18:42
+1 I am having the same issues. let me know if there has been a fix already.. –  blunderboy Jan 26 '13 at 14:33

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.