Ethernet and Wi-fi don't work Linux Mint 19.2

I just installed Linux Mint (first time using Linux) on my HP G7 255. I don't have experience with programming or Linux in general, but for over an hour I can't connect to the internet. I have to say at this point that in the booting process in order not to have a black screen I changed "quiet splash" to nomodeset (no idea what are those, but it worked, read that it has to do with the drivers). I would really appreciate some help here, I read about 10 different forum discussions on this topic but I didn't understand a lot. $ ip a 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eno1: mtu 1500 qdisc fq_codel state DOWN group default qlen 1000 link/ether 04:0e:3c:f0:75:4e brd ff:ff:ff:ff:ff:ff # dmesg | grep fail ACPI Error: [\_SB_.PCI0.GPP2.BCM5] Namespace lookup failure, AE_NOT_FOUND (20170831/dswload-210) ACPI Error: 1 table load failures, 12 successful (20170831/tbxfload-246) ACPI Error: [WLVD] Namespace lookup failure, AE_NOT_FOUND (20170831/psargs-364) [ 0.137990] ACPI Error: [WLVD] Namespace lookup failure, AE_NOT_FOUND (20170831/psargs-364) [ 0.233009] ACPI Error: [WLVD] Namespace lookup failure, AE_NOT_FOUND (20170831/psargs-364) [ 0.328972] ACPI Error: [WLVD] Namespace lookup failure, AE_NOT_FOUND (20170831/psargs-364)