Fails to install with password NO (but didn't ask for one)

[Ronnie Redd]

Binary package hint: mtop

Terminal from synaptic dialog:
Unpacking mtop (from .../mtop_0.6.6-1.2_all.deb) ...
Processing triggers for man-db ...
Setting up mtop (0.6.6-1.2) ...
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
dpkg: error processing mtop (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 mtop

mtop didn't ask for a password and in synaptic, looks like it installed.
If I try to run it as sudo:
 w procs [Access denied; you need the PROCESS privilege for this operation]
Stack Trace:
    at main::__ANON__(/usr/bin/mtop:560)
    at main(/usr/bin/mtop:1193)

ProblemType: Package
Architecture: amd64
DistroRelease: Ubuntu 9.04
ErrorMessage: subprocess post-installation script returned error exit status 1
Package: mtop 0.6.6-1.2
PackageArchitecture: all
SourcePackage: mtop
Title: package mtop 0.6.6-1.2 failed to install/upgrade: subprocess post-installation script returned error exit status 1
Uname: Linux 2.6.28-11-generic x86_64

[Ralph Janke (txwikinger)]

I can confirm this problem occurs in the way described. I have pinentry pop up, but nevertheless the password is not considered and the error messages below are reported.