The official Debian install file would have been named debian-8.6.0-i386-netinst.iso
I did find a file named "firmware-8.6.0-i386-netinst.iso" on an unofficial CD image page for CD images that include non-free software (hardware drivers that aren't open source). There may be some bugs with the non-free software, which would be harder to debug due to the nature of non-free software.
If Gnewsense worked, then that means all of your hardware is supported by non-free hardware drivers. Therefore, the standard official Debian install file should work well. If you wish to install non-free software after installing the official Debian GNU/Linux distribution, then do the following:
1) Open a terminal
2) Type in the command "su -" to log in as root.
3) Type in the command "pico /etc/apt/sources.list" to add "contrib non-free" to the end of each line. The result will look something like this:
Code:
deb http://ftp.us.debian.org/debian/ jessie main contrib non-free
deb-src http://ftp.us.debian.org/debian/ jessie main contrib non-free
deb http://security.debian.org/ jessie/updates main contrib non-free
deb-src http://security.debian.org/ jessie/updates main contrib non-free
# jessie-updates, previously known as 'volatile'
deb http://ftp.us.debian.org/debian/ jessie-updates main contrib non-free
deb-src http://ftp.us.debian.org/debian/ jessie-updates main contrib non-free
deb http://www.deb-multimedia.org jessie main non-free
(In this example, I have added deb-multimedia.org as a source - it's a great place for all of the non-free audio/video codecs, DVD support, and so on.)
4) Type in the commands:
Code:
apt-get update
apt-get dist-upgrade
Gnewsense is a specialized GNU/Linux distribution specifically tailored for people who want to use nothing but free open source software. You'll have to fight its customizations to get any sort of non-free software running on it. In contrast, Debian is maintained to be a reasonable compromise between free software by default - but easily switched to add non-free software (which is what the majority of users and maintainers use).
As before, I suggest installing with the XFCE4 desktop suite rather than the GNOME3 suite. It's much easier on your hardware.