Why can't I change my screen resolution when live booting trisquel from a usb?

Hi, I tried trisquel (a distro endorsed by the fsf) by booting it from a live usb, however the screen resolution was wrong and I couldn't change it. I was wondering if this is because I haven't properly installed trisquel yet, or because the Linux Libre kernel doesn't support my hardware - I have an Nvidia Geforce GTX 1060, or whether it's because of the following error messages i received when booting:

noveau 0000:01:00.0 unknown chipset (1236000a1)

sd 6:0:0:0: [sdc] No Caching mode page found

sd 6:0:0:0: [sdc] Assumng drive cache: write through

hci0: Missing Free firmware (non-Free firmware loading is disabled)

Bluetooth: hci0 Intel firmware file request failed (-22)

iwlwifi 0000:03:00.0: request for firmware file failed.

iwlwifi 0000:03:00.0: no suitable firmware found!

snd_hda_intel 0000:00:1f.3: failed to add i915_bpo component master (-19)

Can anyone explain this for me? Thanks.