Thank you very much, that was really helpful.

Downloaded the libpng12 here
https://packages.debian.org/jessie/amd6 … 0/download

and now lsb package installs, problem solved.

I am running Devuan Ascii (just installed some day ago) and i noticed this error before

The following packages have unmet dependencies:
lsb-desktop : Depends: libpng12-0 but it is not installable
               Recommends: libqt3-mt (>= 3:3.3.6) but it is not installable
E: Unable to correct problems, you have held broken packages.

Until this is not solved, there seems no way to install the epson-driver package from the homepage.

i would either need this package to install driver

epson-inkjet-printer-escpr
(installabe on debian)

or (lsb) > preferable > but it is not installable on devuan ascii, as it seems to conflict with (lsb-desktop)
and then i could install the proper printer driver from epson

/etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/mapper/rich--PC--vg-root /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sdc2 during installation
UUID=07d2061b-61ee-4196-8ed6-3ec4d40ff2c7 /boot           ext2    defaults        0       2
# /boot/efi was on /dev/nvme0n1p1 during installation
UUID=0E51-C604  /boot/efi       vfat    umask=0077      0       1
/dev/mapper/rich--PC--vg-swap_1 none            swap    sw              0       0
/dev/sr0        /media/cdrom0   udf,iso9660 user,noauto     0       0

the installed firefox is from the repo Mozilla Firefox 60.7.2

the drive is from LG CH12NS40

this is my favorite extension which is no longer supported by firefox quantum (although there are similar ones available, but less good functional)

https://github.com/antoniy/mpv-youtube-dl-binding

i have not heard of any big security holes in Firefox ESR; i put functionality first, and on Windows i use Kaspersky.

KDE is my favorite Linux Desktop Environment, but haven't used quite some time now, due mostly computing on Windows.
i like the functionality, but the newer Graphics (especially in Ubuntu) i found overbloat and less responsive (especialy when compared to Trusty).

EDIT: i just found another elegant mpv player that does quite the same as above similarly for firefox quantum!

https://github.com/woodruffw/ff2mpv

image hosting

H_o_a_S .. thanks for the clarification . I am not sure if Firefox 60 ESR would still work with alsa-only, but 52 probably does. Tried apulse (for firefox and skype if i remember correctly) but i didn't seem a stable solution.
Anyway, i am still using FF52.9 ESR because some extensions i rely on are no more compatible with the newer versions of FF.

on debian wheezy i had issue with gnome3 as removing pulseaudio would sometimes remove also gnome-core or gnome-desktop ... that was a bit  to learn that by removing such a "minor" package one could "break" a whole desktop environment.