Hi everyone!

Firstly, I would like to thank to the developers of this great distributions. I'm actually telling my friends how satisfactory has been my experience with Kaos.

I've just updated Kaos on my desktop computer but once finished, when it reboots, after the login and the KDE loading screen, there's only a black screen with the cursor. And the system stays that way until I turn it off and on again.

I tell you that I've tested a large amount of distributions, in which I had several problems with my video card (an old NVidia GForce), but with Kaos and it's non-free installation all troubles seemed to disappear and all worked perfectly. I'm pretty sure that this has to be a video card problem, but I don't know how to solve it.

Please, can anyone help me ?

Greetings from Chile!

To be clear, X actually starts right? You get the login, see the new ksplash, then the black screen?

If so, then go to tty2 when in that black screen:

Alt-Ctrl-F2

Once there, login with user-name and pasword.

Next edit one file:

nano ~/config/kwinrc

Change the line "Backend=OpenGL"

To "Backend=XRender"

And "Enabled=true" to false

Then restart sddm"

sudo systemctl restart sddm

Thank you Demm.

X actually starts right. When doing

nano ~/.config/kwinrc

I didn't see the options you wrote.

There's only 4 lines:

[Compositing]

OpenGLIsUnsafe=false

[Desktops]

Number=1

Do you know why?

Yes :)

kwinrc was not written yet, since the desktop hadn't loaded.

Add the lines as I wrote them, what you see now is default, and that has "OpenGL" and "true" as default.

So should I write

[Compositing]

OpenGLIsUnsafe=false

Backend=XRender

Enabled=false

[Desktops]

Number=1

?

I've just did that and there are some messages.

A xmessage window appeared with the message: "Could not star ksmserver. Check your installation"

Besides, there were 3 errors in plasmashell, with the following PID: 1234, 1290 and 1327.

Once closing these 4 windows, the system returns to the login screen.

Any advice?

Not enough info to debug :(

Did you get any error messages during the update?

Can you try with nouveau instead of nvidia?

See this tutorial to switch, but you need internet in tty2 to be able to install with pacman -S.

I'm pretty sure there is a problem with the graphic card, I just downloaded the latest .iso and run the live mode. I choose the non-free options but once started all I can see is black and the cursor.

This doesn't happen with the previous .iso.

I could see the tutorial, but I couldn't connect to internet in tty2.

The following link http://www.ubuntugeek.com/ubuntu-networking-configuration-using-command-line.html is which I used to try to connect.

Try the new ISO is in free mode, then you know if nouveau will work before trying to install it.

Hi again, I've done some things today.

Firstly, I erased the older Kaos installation. Then I run the latest ISO, with the free drivers and it didn't work at all, so I used the non-free drivers mode and the same problem I got yesterday after the update still remains, as you can see in the following image.. http://i.imgur.com/qO6ImQp.jpg

As you can see, there is only a black screen and the cursor after the start screen. However, I do have access to tty2 in the live mode, with localhost login (live/live or root/root). I have a wired connection but I don't know how to enable internet in this mode.

More details of my graphic card are GPU NVIDIA GeForce 6150 / MCP NVIDIA nForce 430 (year 2010).

Yes, that is the card. I wrote 2010 because it was the year when I bought the computer.

The inxi -G output is:

Card: NVIDIA C61 [GeForce 6150SE nForce 430]

Display Server: X.org 1.16.4 driver: nvidia

tty size: 80x25 Advanced data: N/A for root out of X

inxi doesn't work this way without X :(

Maybe better debug info will be get if started without sddm. Again in tty2, run:

sudo systemctl stop sddm

go back to tty2 again:

startx

See if better debug info shows now.

Just updated my box from KDE4 to KF5 in Konsole and it went smoothly. Congrats and thanks to demm are in order.

A message did pop up near the end saying that To have LibreOffice fully integrate copy /opt/xdg/libre.sh to ~/.config/plasma-workspace/env.

Following is the terminal conversation:

$ su

Password:

# cp /opt/xdg/libre.sh ~/.config/plasma-workspace/env/

cp: cannot create regular file '/root/.config/plasma-workspace/env/': No such file or directory

#

However, for testing purposes, I clicked the Libreoffice Writer icon and the application was launched without issue.

What did I do wrong?

Nothing wrong with starting Libre, but for best integration, create that dir, then copy the file.

Thanks. Here is what I did:

# mkdir -p ~/.config/plasma-workspace/env/

# cp /opt/xdg/libre.sh ~/.config/plasma-workspace/env/

#

Demm:

I did what you told me, and the result is that the starting screen appears to be loading again, but freezes at this point

http://i.imgur.com/TOA5uXQ.jpg.

At this point, I can't access to tty2, but I can use the other tty's (tty3,tty4,tty5,tty6). When I clicked alt+ctrl+f2 the window turns black and the cursor appeared.

I started X (startx) in the other tty's and the result was the same I explained in the first paragraph.

It is a default setting in kwinrc that blocks your desktop loading.....

If we could just get some output from startx, could be possible to solve.

You probably need all desktop effects disabled, but I tried that with the previous kwinrc edits I posted.

Is there a way to edit kwinrc on the live mode ?

Or should I try installing the previous ISO and edit some parameters on the kf5 update ?