Nvidia GeForce GT 720 - Will it work?

It's shown as supported with experimental reclocking on the nouveau website. Move to a more recent kernel, when I ran nVidia GPUs I always used jxself's forward kernel for best nouveau kernel driver support but take your pick from our wiki page

https://trisquel.info/en/wiki/update-linux-libre-kernel

Hey leny2010, that looks great!
I will give that a try in a bit. I hadn't imagined I could run a 4.x kernel in Trisquel. I am using Belenos, hopefully that won't make a difference. I will report.

I did follow instructions right down the line (didn't need the 'little bash function.') Ran $sudo apt-get install linux-libre64 linux-libre64-header and $ sudo update-grub and rebooted. It looks like it is going to work, though I see a message for a moment something about 'nouveau fault a' but none the less it shows that Trisquel splash screen which I think might be showing at the right resolution but then it just goes white.
Any ideas?
I attached text file with configs and Xorg.0.log.old.

Haven't given up yet. I wonder if I have conflicts between packages and could benefit from reinstalling and going straight to the jxself 4.x kernel as a starting point. I did make a very small partition for /var/log and recieved a message that it was almost full. Mostly was kern.log (76 MB) which was largely filled up with something like this:

May 21 14:13:55 Trisqueltower kernel: [ 46.225317] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225349] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225379] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225410] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225442] nouveau E[ PGR][0000:01:00.0] FECS MTHD subc 1 class 0x80011698 mthd 0x1698 data 0x00001000
May 21 14:13:55 Trisqueltower kernel: [ 46.225473] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225505] nouveau E[ PGR][0000:01:00.0] FECS MTHD subc 1 class 0x80011698 mthd 0x1698 data 0x00001000
May 21 14:13:55 Trisqueltower kernel: [ 46.225527] nouveau E[ PGR][0000:01:00.0] 502000 - stat 0x00000000 0x00000000 0x00000002 0x00000000
May 21 14:13:55 Trisqueltower kernel: [ 46.225568] nouveau E[ PGR][0000:01:00.0] FECS MTHD subc 1 class 0x80011698 mthd 0x1698 data 0x00001000
May 21 14:13:55 Trisqueltower kernel: [ 46.225590] nouveau E[ PGR][0000:01:00.0] 502000 - stat 0x00000000 0x00000000 0x00000002 0x00000000
May 21 14:13:55 Trisqueltower kernel: [ 46.225623] nouveau E[ PGR][0000:01:00.0] 502000 - stat 0x00000000 0x00000000 0x00000002 0x00000000
May 21 14:13:55 Trisqueltower kernel: [ 46.225653] nouveau E[ PGR][0000:01:00.0] 502000 - stat 0x00000000 0x00000000 0x00000002 0x00000000
May 21 14:13:55 Trisqueltower kernel: [ 46.225685] nouveau E[ PGR][0000:01:00.0] 502000 - stat 0x00000000 0x00000000 0x00000002 0x00000000
May 21 14:13:55 Trisqueltower kernel: [ 46.225716] nouveau E[ PGR][0000:01:00.0] 502000 - stat 0x00000000 0x00000000 0x00000002 0x00000000
May 21 14:13:55 Trisqueltower kernel: [ 46.225747] nouveau E[ PGR][0000:01:00.0] 502000 - stat 0x00000000 0x00000000 0x00000002 0x00000000
May 21 14:13:55 Trisqueltower kernel: [ 46.225787] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225818] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225849] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225880] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225913] nouveau E[ PGR][0000:01:00.0] FECS MTHD subc 1 class 0x80011698 mthd 0x1698 data 0x00001000
May 21 14:13:55 Trisqueltower kernel: [ 46.225944] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.225974] nouveau E[ PGR][0000:01:00.0] FECS ucode error 2
May 21 14:13:55 Trisqueltower kernel: [ 46.226006] nouveau E[ PGR][0000:01:00.0] FECS MTHD subc 1 class 0x80011698 mthd 0x1698 data 0x00001000

How is it working now (looking to get an Nvidia card myself....)

This Card is a great value, have it running 3 monitor (L-1290x1080, C-1260x1440 and R-1024x768). Monitor are not "spanned" just extended desktop.
Very quiet, easy install, add monitors one-at-a-time during configuration and reboot for each monitor.

Sorry I went dark for so long.

Well, the 720 GT won't earn my recommendation! I couldn't get it to work.
During boot up there was always a message about frame buffer hardware conflict between noveau fb and vesa fb that concluded kernel would remove the 'generic driver.' It would hang for a minute or two and then finish booting up to the wrong resolution. One day I uninstalled the Vesa drivers and voila - new message re 'Unknown chipset Keppler chipset' and then boot process stopped - no more Trisquel. I got that far with leny2010's advice re a forward kernel and whatever else I could come up with re noveau.

I'm afraid it sort of broke me and I haven't been able to bring myself to mess with much of anything tech related for a while. My PC has Centos with the same resolution issues and I have been using that for the minimal personal business stuff I do (including logging in to the forum today) and Fedora with nvidia blobs installed so I can watch youtube or whatever comfortably. I use the laptop with debian for email as Enigmail is working on it.

I read that jxself has a de blobbed kernel that may work with the original Radeon card I had in the PC so when I am recuperated enough and have some gumption again, I'll reinstall that card and start over. I do really like Trisquel and especially enjoy the forum.