unable to play video after upgraded to ubuntu 16.04 from 14.04

[李白|字一日]

Is it possible for me to resolve this problem?

Everything seems ok except video playing and flash updating.

2016-05-03 21:31 GMT+08:00 Ralf Mardorf <silver.bullet at zoho.com>:

> On Tue, 3 May 2016 14:51:54 +0200, Liam Proven wrote:
> >On 3 May 2016 at 14:00, Ralf Mardorf <silver.bullet at zoho.com> wrote:
> >> It might be useful for rollback purpose. Sometimes downgrading might
> >> be required to fix an issue.
> >
> >Hmm. I guess. I have occasionally rolled-back to an older package, but
> >when I have needed to do that, I went and fetched the package
> >manually, or told Synaptic what version to install. I have never, ever
> >used the cache for it.
>
> Ok, I agree it's overcautious to keep the apt cache and there very,
> very, very unlikely ever is a reason to get a package from the cache,
> as long as we've got good and fast access to the Internet and/or
> backups.
>
> I revoke my claim. Apart from a minimal, neglectable remaining risk,
> there's nothing wrong with cleaning or auto cleaning the cache.
>
> ;)
>
>
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