[SOLVED] Error - Black arrow on black screen

[linuxlite99]

Solution for me was to add sleep 2 to the /etc/init/lightdm.conf file as described here http://www.webupd8.org/2013/01/ubuntu-lightdm-black-screen-when-using.html

[DLX]

Reboot did fix for me I did a full shutdown. 

[elodman]

Startx
Made every thing come back desktop icons background tool bar .. then did an system update then shut down.

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startx
works nicely, so I did all these with Root (install updates, shutdown) but still have the lonely mouse pointer case, luckily not with simple users.

Maybe after installing any updates one should asap shutdown with root, or should one omit using root for this - and all other - purpose(s)?

[DLX]

SONIC or is it Supper SONIC

Startx

Made every thing come back desktop icons background tool bar.  I did a reboot and got same error back screen did Startx again then did an system update then shut down.

The cold start all working as before     
When I wont to shut down I have to put password in that's new

Many thanks Sonic & all

[sonic]

In my opinion, that's a bug of lightdm. If you login at the terminal you can try to give

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startx
and see what will happen.

[DLX]

I want to fix my computer!
I woukd judt install lite again but don't want to loss data,  as I ran out of diskspace I was using the disk os was installed on.

Is any clue why this happened? 

[sonic]

At the point you are, you have to write your credentials, username and password to login in. After that, there will be a prompt to do what you want.

[DLX]

Went I go into terminal
Top left:

Ubuntu 14.04.1 LTS T160 tty
Hint Num Lock on
T160 login:

I now remember my full user ID
After typing from other post Sudo visudo

On screen shows must be root to edit visudo.

Don't know how to get to root login.
Have tried
T160 login: Sudo
Pass: xxxxxxxx

Then I get Login incorrect I know this is the right password.

Don't know why this has happened!  Didn't do any update.

Thanks for help

[Scott]

Happy to help. Post back and let me know how it goes.  ~Scott

[DLX]

Scott Thanks for fast reply
Will tryout tomorrow.

[Scott]

@Dyslexic1

How can I find out the only user ID on computer please?

To find user IDs on the computer, in a terminal type this:

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cat /etc/passwd
At the end of the list the user IDs should start at 1000. Here's my user ID, for example:

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scott:x:1001:1001::/home/scott:/bin/bash
In this case my user ID is 1001

I hope this helps.

~Scott

[DLX]

Thanks all
Liunx lite is the only os on computer. 
When loading black bar get about 3/4 then logs straight in. I did have password to login before.

I try CTRL+ALT+F1 hot to log on
But I don't remember my full user ID ;o numbers after name.

So I tried SU & Sudo then password but get Login incorrect. 

T160 login - The T160 is the name of my second drive, not were os is loaded.

How can I find out the only user ID on computer please?

I'm using my phone to post this please excuse spelling errors.

[elodman]

Greets Maestros!

Same issue here, after having used LL 1.8 and then 2.0 altogether for a few months (installed on HD, in a multi-boot Win 7 environment).  At the latest release LL 2.0 64-bit no problem was found until about 2 weeks ago I selected install updates. Since then black screen with a lonely arrow is the protagonist - but ONLY with root/admin, not with simple users (and all log ins require a password)!
And Power off button is the only escape route.
EDIT : WRONG, TERMINAL IS OK, SEE BOTTOM PART

Anyway could I use command SU or SUDO properly, or would in User Management granting SUDO rights to my simple user be functioning, no trouble would I have. (Though, spent 2 hours with trying and net reading, also in LL manual).

Some help would be fine.

(inxi -F is not installed, should anything be presented?)
------

off: LL seems to be a very Great Distro after the many bloated and / or unstable, slow ones, used in last 4 years - thanx for it.

----EDIT: some success with terminal

Thanx for great info,

CTRL+ALT+F1 invoked terminal nicely in this no-GUI log-in case, where I could grant privileges to anyone

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sudo visudo
reboot

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shutdown -r now
log out

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killall -u user

As couldn't summon X GUI with the other key-shortcut.

[sonic]

Do you give a password to login? The moment your PC hangs is when it's trying to load the window manager I suppose. Try to press CTRL+ALT+F1 to go to a terminal. With the CTRL+ALT+F7 you return to the X environment.

[rokytnji]

Did you md5sum the iso before burning or install?