ubuntu14.04 Unable to play an updated and complete solution

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The previous few days of Ubuntu upgrade 14.04, (Kubuntu version) time to update the system. The result is no sound, the network video also can not see. Baidu has a few programs, no fruit. Maybe it's not clear enough to write. I also bear with the beginning, after all, I am a dual system, so watch the video is only in Windows to see. But it was a very bad time to play Linux today. So I decided to solve it.

But who should I ask for advice? I opened Kubuntu's own IRC.

Open it, there are many foreigners inside.

I say hello in crappy English, and then someone responds. Oh, I asked this don ' t have the voice solution.

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Anyway

Open Terminal input alsamixer
Show

The first idea is that empty bars fill up.

Around the key to move the cursor to different bars, the upper and lower keys to adjust high and low.

But even if all fills up, still can't hear the sound .

The point is, look at the front three bar numbers shown above is MM. What does M mean? It's mute. Mute the meaning!

。。

Move the cursor to the corresponding bar, press M at this point, it will change to 00.

Basically these three are changed to 00 of the state. Then there will be a sound.:-)

Alsamixer is a mix of software, similar to the volume control in Windows, the mixer panel.

Thanks to foreigners. Do not know whether it is an ordinary user or official support.

。

Indeed they are more enthusiastic or competent.

Off Topic

Started because of this state diagram. I didn't know how to describe it in an IRC chat room, so I copied it directly and pasted the characters in the shell.

Like this.

│┌──┐┌──┐┌──┐┌──┐┌──┐┌──┐┌──┐│
││││││││││││││?? ││
││││││││││││││?? ││
││││││││?? ││││││?? ││
││││││││?? ││││││?? │→
││││?? ││?? ││?? ││││││?? │→
││││?? ││?? ││?? ││││││?? │→
││││?? ││?? ││?? ││?? ││││?? │→
││?? ││?? ││?? ││?? ││?? ││││?? │→
││?? ││?? ││?? ││?? ││?? ││││?? │→
││?? ││?? ││?? ││?? ││?? ││││?? │→
││?? ││?? ││?? ││?? ││?? ││││?? │→
││?? ││?? ││?? ││?? ││?? ││││?? │→
││?? ││?? ││?? ││?? ││?? ││││?? ││
││?? ││?? ││?? ││?? ││?? ││││?? ││
││?? ││?? ││?? ││?? ││?? ││││?? ││
││?? ││?? ││?? ││?? ││?? ││││?? ││
│├──┤├──┤├──┤└──┘├──┤└──┘├──┤│
││oo││oo││oo││oo││oo││
│└──┘└──┘└──┘└──┘└──┘│
│57 78<>78 74<>74 87<>87 60<>60 0<>0 100<>100│

│< Master >headphon Speaker PCM mic Mic Boos beep│

。。 I just paste it into the chat room, and it seems like this is not good. Then they say stop pasting in the house.

Then gave me a URL http://paste.kde.org/asked me to post to the inside, and then send the URL back.

Paste it into the inside. then click Pastebutton. Then there will be four buttons in the upper right corner, click Get Short URL

A URL will appear. Then, through this URL, paste it into its chat room.

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ubuntu14.04 Unable to play an updated and complete solution