Kubuntu 14.04 X console immediately logged out problem

When I tried to login from X console, I was immediately logged out and cannot login.

1. first try to login by tty. (Control-Alt-F1, for example) I can login by the tty.

2. Check the ~/.xsession-errors file. I have the following (or similar) message.

/etc/X11/Xsession.d/99x11-common_start ...

Open the /etc/X11/Xsession.d/99x11-common_start file. The line that has an error is

exec $STARTUP

Some reason, $STARTUP seems not correct.

3. Solution: I commented out that line with #, like,

# exec $STARTUP

Then it worked again. But, I am not sure what is really causing.

Comments

Gauss's quote for positive, negative, and imaginary number

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Tezuka Osamu's Black Jack, "Shrinking"

I like several novel authors. My first favorite author is probably Teduka, Osamu. I still love him. The list grows by adding Hoshi, Shinichi, Agatha Christie, Hermann Hesse, and so forth. My first favorite article of Tezuka was Atom as most of the (boy's) Tezuka fans did. But my favorite is Black Jack. I try to summarize one story, it is still quite vivid in my memory. I first read this story when I was 13 - 15 years old. I re-read it at least several times since Black Jack is composed of many short episodes. The title should be "ちぢむ (SHRINKING)" or it might be "縮む(Shrinking)". (It is not so convenient to translate this to English, since English does not have a system to say the exact same word in several ways. So I just simulate it with capital letters.) Black Jack is a genius surgeon, but he does not have the license. In short, his medical activity is illegal. His skill is top level in the world, but, the fee is also out-of-law expensive. In the story ...

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