Dear maintainer,
We are definitely not talking about the same issue.
I never tried to start sddm with another dm running, it just crashes
after reboot.
After the latest update to nvidia, today Sunday Nov. 1, 2015, it does
not crash that bad, but it still gives me a garbled and unusable
display, I cannot complete login through it.
I have to go back to terminal and type as user: startx startkde to get
to the desktop, sddm will not start normally.
A bug was reported for glx-alternative-nvidia v.0.60, in testing I have
0.51 and unstable is at 0.63.
I know that this is not reproducible in all systems, as I said before, I
have another computer with a different type of card and it works.
Please don't downgrade severity just because you cannot reproduce, many
users are affected.