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I tried to add a 2nd display to my Mageia 5 Acer Aspire. It failed & booted to an error 'ipv 6 doesn't support broadcast matching'
Then I tried booting into safe mode & now I can't go beyond loggin

How exactly did you add it, and what desktop environment do you use? In general, to add another monitor, there's no need to reboot. Simply plug it, and configure it via the means of your desktop environment.
Please attach your /etc/X11/xorg.conf and /var/log/Xorg.0.log

I'm not able to go beyond the login screen. After entering my login info it goes into it over and over again so I can't see any logs ...
My DT is Ice, I did it with the options in MCC

If you're at the login screen, press e.g. Ctrl+Alt+F2 to F8 to switch to another tty.
Then move away your /etc/X11/xorg.conf and run drakx11 as root to select your graphics card again. Then reboot and try again to login.

move the file away via e.g.

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mv /etc/X11/xorg.conf /etc/X11/xorg.conf.OLD

Very wicked, I'm able to login, this way then with F 2 to 6. it says cant move, permission denied
With F 7-8 it simply shuts it down .....

I'm able to login, this way then with F 2 to 6. it says cant move, permission denied

The command needs to be executed as root.

Then how can I go from user to root?

In terminal execute:

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su -

After quite a few failed attempts as root I finally succeeded & run drakx11 using suggested options, first w/ 1920-1080p. Then with the default resol-n. Though after rebooting I couldn't go beyond the login screen both times.

So you still have the problem?
Did you move away /etc/X11/xorg.conf beforehand? And when selecting a display in drakx11, you should not select a resolution. Simply select plug&play for the display.
Please try again.

doktor5000 wrote:So you still have the problem?
Did you move away /etc/X11/xorg.conf beforehand? And when selecting a display in drakx11, you should not select a resolution. Simply select plug&play for the display.
Please try again.

finally it worked after I instead of rebooting, turned it off for a few secs. I also left 2 spaces,instead of 1, after mv.

TY

Please mark the thread accordingly by editing the topic of the first post and prefix it by [SOLVED], thanks

How should I enable a 2nd display w/o messing up my sys again ? It didn't recognize it upon rebooting ...

IceWM doesn't have any tool by default for multi-display support. Well it basically has no tools at all that most regular desktop environments offer, but that is because IceWM is only a window manager.

Please provide information how your current display is connected, and how the second display should be connected, e.g. what type of connector (VGA, DVI, HDMI, DisplayPort, ...)
When your second display is attached, please provide the output of the following commands:

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xrandr -q
cat /var/log/Xorg.0.log
lspcidrake -v | grep VGA

My monitor's a part of Acer Aspire 1 notebook & has only VGA out monitor port. My monitor worked fine in L. Mint as a 2nd Display.
Now I can't also open MCC & I'm not able to access other media as SD cards & usb sticks. Is there any way I can do that while running Mageia from a usb stick?

You can run the commands when running from a live media, although it may not be representative for your installed system.
Maybe you should first concentrate on one issue, and not try to fix multiple problems at the same time?
Better open a separate thread for the issues you mentioned "Now I can't also open MCC & I'm not able to access other media as SD cards & usb sticks."