HDMI

 I installed Ubuntu Local Language Remix on my dynabook N40, but there was a problem with unstable bluetooth, so very difficult to use it .

The other day I started using a Toshiba REGZA as an external monitor, and while I was doing so, I found that HDMI sound was recognized by Ubuntu when I opened the sound menu from the settings menu. I selected this option and the REGZA began to play sound (!!). This solved the problem, but for some reason, this setting reverted back to the original every time I rebooted the dynabook N40, so booting up and setting the sound became a routine task every time. This is tolerable, but I will give up bluetooth for the time being, because I don't have to worry for a while as long as I can hear sound, although the bluetooth instability problem of Ubuntu has not been solved (:-o).

bluetooth

 I have installed Ubuntu on my dynabook N40 and have been playing with it. Even though　bluetooth was not working with the built-in one, but as with CloudReady, it is recognized if I use an external bluetooth chip. However, I noticed that the bluetooth was still very unstable while I was doing various things. The first time I tried to connect a speaker, I was relieved to hear sound, but after that, when I tried to connect a mouse and other devices, nothing appeared but "Searching for devices". On the contrary, the speakers that are supposed to be connected do not appear in the settings menu. The sound is coming out, so it should be connected, but it is not.

After restarting the computer several times and repeatedly turning bluetooth on and off, I found that the device "sometimes appears" (:-o). If I did not quickly register the device the moment it appeared, the next time it would not come up again (;-o). In addition, speakers that were supposed to be connected were sometimes disconnected.

I was able to use bluetooth  with CloudReady comfortably, so maybe Ubuntu bluetooth is unstable?　But I'm sure there must be a solution, so I'd like to do some more research.