Just for your information, Debian 7.1.0 during installation says that computer needs rtl_mic/rtl8168e3.fw, which is in their non-free repository.
http://packages.debian.org/wheezy/firmware-realtek
At any case, wired connection works perfectly with Trisquel. This is the ethernet entry from lspci
Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 07)
Dispositivos 3G | 33 |
Acquisition cards | 34 |
Bluetooth | 56 |
Placas de rede | 170 |
Leitores de impressão digital | 11 |
Controladores de host | 170 |
Modems | 18 |
Notebook | 785 |
Printers | 125 |
Adaptadores RAID | 20 |
Scanners | 24 |
Leitores de cartão SD | 56 |
Placas de som | 140 |
Placas de vídeo | 341 |
Webcams | 132 |
Placas wifi | 228 |
TOTAL | 2343 |