[ubuntu-studio-devel] Qjackctl

Ross Gammon retail at the-gammons.net
Sat Feb 27 14:15:11 UTC 2016

On 02/24/2016 08:52 PM, Len Ovens wrote:
> The qjackctl that currently ships with 1604 is broken. In fact it can
> impact other applications including the desktop. Qjackctl is  a large
> part of our audio workflow and also affects some of our Video
> applications that rely on jackd for sync purposes. The latest qjackctl
> builds itself as a qt5 application by default. Ubuntu is set up as a qt5
> system by default too. However, qjackctl will build just fine as a QT4
> application and as we already have other QT4 applications all the
> required Libs are already there. When built as a qt4 application
> qjackctl seems to work just fine. When looking through the web, it seems
> qjackctl is not the only application having the same problem with qt5.
> So the problem is with QT5.

Have built it successfully with QT4 and as Len says - it seems to work.
The look it quite different though. I have uploaded it to
ppa:ubuntustudio-dev/dev-testing if you want to give it a spin.

I tried to see if there was some other patch we could apply from the QT
bug tracker or something. But there is so much misinformation about
different systrays, notification areas, I could not find anything concrete.

> Ga! ubuntu changes the default from debian's 48k to 44.1k, Why not leave
> it alone? Even intel's internal HDA is designed around 48k. (all analog
> circuitry makes 48k sound cleaner)

I can't see any rationale for that 44.1 setting in the changelog, but
unfortunately, after the Freeze starts we can only really fix bugs.
Let me know if you think I should hold off, otherwise I will try and get
it sponsored later.



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