Geluid verbeteren Fedora on Macbook adjust sound

If your problem is that you cannot hear any sound, or sound is at too low or too high a volume, you should try adjusting your mixer (volume control) settings. (preferences/sound).

Als het geluid te hard of te zacht is (of afwezig) kun je dat bijstellen in preferences / sound (voorkeuren / geluid ) Je vind voorkeuren in de rechterbovenhoek van het scherm.



zie ook/ more on

The mighty mouse (Apple) is not very mighty, the mouse works not without interuptions and  unexpected behaviour. So now I am using a non-cordless apple mouse  (Model A1115)

Apple bluetooth mouse and Fedora 25



Open Terminal and type bluetoothctl
There one can input help to get a list of available commands.
Turn the power to the controller on by entering power on It is off by default.
Enter devices to get the MAC Address of the device with which to pair.
Enter device discovery mode with scan on command if device is not yet on the list.
Turn the agent on with  agent on
After this things are changed: You will have to experiment a bit.
My guess is the bluetoothctl just goes on on its own here.

Enter  pair MAC Address to do the pairing (tab completion works). If using a device without a PIN, one may need to manually trust the device before it can reconnect successfully. Enter ‘trust MAC Address’ to do so.
Finally, useuse connect MAC_address   to establish a connection.

Your mouse needs full batteries and power on mouse must be on. Play with the mouse to keep it busy. Connecting could take some time.

Garden Eight Lei Liang (2)


[Read also part 1:

I just listened to a selection from  “Listening for Blossoms” (soundcloud)

What would it mean to listen to a painting? What is the relationship between landscape, memory, gesture, vision, and sound—and how can technology help us begin to answer this question? Lei Liang has been exploring these intersections in his musical compositions: Brush-Stroke, In Praise of Shadows, and Listening for Blossoms all enmesh Liang’s visual and perceptual experience with his own sonic world. (source

Garden is 園林 yuan2lin2 and eight is 八 ba1. The word for “eight” (八 bā sounds similar to the word which means “prosper” or “luck”

(image: pen jing or bonsai in Botanical Garden Washington DC)

About Garden Eight, Lei Liang (1)


Garden Eight is a piece by Lei Liang,composer.  He wrote a collection of  6 parts, 天 Tian, heaven, 地 Di, earth, 東 Dong,oost, 南 Nan,zuid, 西 Xi, west and 北 Bei, noord。 Lei Liang wants the parts to be gardens, visual worlds and worlds of other senses. Passing clouds, remote mountains, sound of ancient temple bells, transience of seasons.

These pieces are musical gardens. To perform one of them is to walk through a garden of sounds.

Chinese connect directions to elements and colors and notes.

direction color element note
east green wood jue 角
south red fire zhi 緻
west white metal shang2 商
north black water yu3 羽
centre yellow earth gong1 宮

(Fung Yu-lan, A History of Chinese Philosophy II. p.13)

天 (tian)means heaven and is in Chinese culture as loaded with different meanings as in christian cultures. It is above, nature, the sky, the place of the gods, etc.




Verveling en duur (boredom and duration, time) 3

This post is part of Verhoeven and Boredom (

Boredom and time
Man is bored in the established (Merleau-Ponty)
Perfection continued is boring and makes us aggressive. The duration of mobility is boring. The endlessness and continuity of duration is boring it causes an aggressive kind of haste motivated by the possibility of more speed. A long monotonous journey on the Autobahn or Interstate; a dull endless speech, with all possibilities to let your thoughts wander, but no possibility to do anything else, causes Langweile boredom verveling.

One is captured and prisoner of a squeezing terrorizing duration. The established is here to stay. We must do with it and it makes us think about a creative freedom or an urgent wish to escape to sleep or to fainting or to unconsciousness.
I was never tempted more to run away or to faint or to do something great or violent than when I had to listen on sunday mornings to a sweating and heavily breathing choir singing alleluias. I was searching for a spot to escape to. That was a kind of anti-boredom, a desperate drive for action, a claustrophobia of time, that makes boredom such a mess of different emotions. Because in some way this resistance against boredom is part of the phenomenon as we know it. Boredom is a laming and emptied haste haste without goal, aggression against duration. Duration calls boredom into existence.
Even the view of industrious and slow and dedicated labor makes us bored without an end as an act of fairness an antithetical supplement that is necessary. That kind of duration and labor needs a lot of boredom, and the thought that this working person is not conscious of the necessary boredom is unbearable. That is why we feel the boredom in his place. It is sustitute boredom.
In slowness duration is a claim on the available time. Time and duration relate as freedom and choice. Choice does limit freedom, duration limits time. Here also boredom is the impossibility to choose.

Next part about Boredom and freedom.

Boredom and Cornelis Verhoeven (2)


Part 2 of  notes about boredom  (translation of: Aantekeningen over verveling) Nothing to do (translation of: Niets te doen) (page 175)

In this paragraph Verhoeven is describing boredom (translation: verveling)

Boredom mostly is negatively connected to activity. Anyone who does not knowwhat to do but still wants to do something is bored. But anyone who must do ten different things and cannot choose is bored too.
Boredom is the impossibility, or better the inability  to choose from different activities, connected to the opinion of an obligation to be active. Anyone who does not feel obliged to do anything or to be involved in any activity is not bored.
Boredom is part of a culture of hyper-activity  and panical need to do anything. Anybody who for a moment lost the hasty rhythm of that culture that does not tolerate idleness is threatened by boredom. And that same culture teaches that boredom is a great evil. In the ideology of activity  boredom is by far the greatest evil, because boredom spoils precious time, and because boredom is a threat to that same culture.
Boredom is also Embarrassment or discomfort to a culture. Something has to be done about boredom. Not only by being active, but also by organizing activities to nip boredom in the bud. If nothing was to be done, we would be bored.
And the activities should be very attractive and new and exiting in order to make choice unnecessary.
But new and exiting becomes normal and ordinary. People will get used to anything, get blasé and unimpressed. If somebody is blasé nothing is new and unusual and that is boring.
Amusement and entertainment is organized to prevent boredom. But amusement always has a boring feeling about it.
People believe somewhere the real amusement could be found. Maybe it is not here, but somewhere else is the real entertainment. People will go and try to find these real amusing activities. Mobility is the solution, we are actively searching for that place with amusement.
Anyone who is active considers freedom to be free time, and free time is considered mobility.

Next paragraph is Verveling en duur (boredom and duration, time)

Image By:  The New York Times photo archive, via their online store, here, Public Domain,