Score:-1

Cannot log in after installing OpenBSD cwm window manager on Ubuntu 20.04

pw flag

I installed the OpenBSD cwm window manager and now it is not letting me log in.

What can I do?

HuHa avatar
es flag
A _window manager_ does not handle graphical login; that's the task of a _display manager_ like _lightdm_, _GDM_, _sddm_. If you don't see a graphical login, what else did you change?
HuHa avatar
es flag
Is there really no graphical login? If there is, check if there isn't any icon to change the _session type_. You will probably still have other session types to choose from; installing an additional window manager does not remove an existing graphical desktop (GNOME or KDE Plasma or Xfce or whatever else you had installed).
HuHa avatar
es flag
See also https://ubuntuhandbook.org/index.php/2020/07/change-default-display-manager-ubuntu-20-04/
HuHa avatar
es flag
I wonder if this is really about a CSM _window manager_ (I found nothing about that one), or if it's really about the [_Compatibility Support Module_ (CSM)](https://superuser.com/questions/857117/what-is-csm-option) as an alternative to UEFI.
Drake Mantooth avatar
pw flag
HuHa this is the video of what is going on https://drive.google.com/file/d/1-Vy3DSxcRAw3hWtVcdfJ_sqFdzbmqdZL/view?usp=drivesdk
oldfred avatar
cn flag
Cannot really watch video. What model Dell? Lets see details, use ppa version with your live installer (2nd option) or any working install, not Boot-Repair ISO: Please copy & paste the pastebin link to the Boot-info summary report ( do not post report), do not run the auto fix till reviewed. https://help.ubuntu.com/community/Boot-Repair & How to Install Ubuntu Linux on your Dell PC https://www.dell.com/support/article/us/en/04/sln151664/how-to-install-ubuntu-linux-on-your-dell-pc?lang=en
HuHa avatar
es flag
So it was _CWM_, not _CSM_; okay, that's something completely different. Since you wrote that changing from _GDM_ to _lightdm_ fixed it, you most likely previously had _Wayland_, not _X11_ (a.k.a. _Xorg_), but CWM needs X11. By changing the display manager to lightdm you implicitly also changed from Wayland to X11.
karel avatar
sa flag
@oldfred The video shows that the laptop boots to the UEFI setup utility and after selecting from the boot menu it gets stuck at a black screen showing a large Dell logo.
Score:0
pw flag

I fixed it by changing the default desktop manager from GDM to LightDM.

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