Sound problems on Ubuntu 18.04 LTS

[Tommy Trussell]

On Sun, Feb 2, 2020 at 8:57 PM ian <ian at ncsa.jp> wrote:

> ... if anyone knows why the Ubuntu 18.04.3 DVD I burnt on my Mac is
> recognized by my Windows machine but not my Ubuntu machine, it would be
> very useful to know.
> I followed the same process as this:
> https://discourse.ubuntu.com/t/how-to-burn-a-dvd-on-macos/14015
>

I noticed in your previous message the disc you tested on your Ubuntu
machine was a CD, and this one is a DVD. Are you sure the optical drive in
your Ubuntu machine can read DVDs?

Also there are multiple "flavors" of recordable DVDs. If I recall correctly
there are DVD +R and DVD -R media, and one or both might be incompatible
with a particular drive. Sometimes the different media the drive can
support are listed on the front, but more than likely you might need to
discern the drive's model number and search to confirm that it supports the
media you have.

It has been a long time since I burned a bootable DVD or CD. It's so much
easier to work with a USB stick, and Ubuntu comes with a utility to turn an
Ubuntu .iso into a bootable Ubuntu USB stick called "Startup Disk Creator."
If you have the iso file on your Mac and can transfer it via your network
to the Ubuntu machine, you can use the Startup Disk Creator on the Ubuntu
machine to make a bootable USB stick. Similar utilities, such as one called
Unetbootin, are available from other places, and you may also be able to
use that or another utility to make the bootable USB stick on your Mac or
Windows PC.


> Unless I can find out why my Ubuntu machine doesn't recognize it, I can't
> progress my sound problem.
>

I haven't been following the thread, but I suspect this isn't your only
option. It's just a shortcut to a "pristine" system. Have you tried
creating a new user account under Ubuntu and seeing if you get the same
behavior when logged in under that account? You may have "cruft" that's
interfering with your sound settings, and a new user account would be one
way to rule that out.


> Also am I right in thinking that the Live disk function is part of the
> regular install disk, and that there is not a separate Live DVD?
>

There is a "net install" disk available that does not have a "live"
function, but instead of a graphical environment it should boot you to an
installation menu. If you think it's possible you downloaded the (much
smaller) net install disk iso instead of a regular "desktop install" disk
iso, then you might want to try again.

There's also the possibility that (despite following the instructions)
maybe you created a disk that just isn't bootable. There are lots of ways
that can happen. Try creating a bootable USB stick and see if you get
farther.
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