qjackctl WON'T START

[hapibeli]

ERROR: "D-BUS: JACK server could not be started. Sorry"
What to do? What else can I post to help in this? Thanks all...

dirk@localhost ~]$ ps auxwww | grep jackd
dirk 2799 0.0 0.2 91928 7956 ? Ss 15:37 0:00 /usr/bin/jackdbus auto
dirk 2991 0.0 0.0 216084 708 pts/1 S+ 15:41 0:00 grep --color=auto jackd
[dirk@localhost ~]$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC3232 Analog [ALC3232 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: MK2 [Komplete Audio 6 MK2], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0

[TAERSH]

Under the first tab of QJackCtl you can choose a sound card as default to use.
Most of the time this will work immediately.
But you can also choose under the last tab a specific sound card for input and output separately.

Did you try any of these options?

What's your computers specs, Dell?