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Modem always disconnects

Posted: Tue May 28, 2019 2:06 pm
by Ultegro778
hello im using 2 distro Linux Mint cinnamon 19 with 4.15.0.x kernel and Ubuntu mate 19 with 5.0.0.15 kernel. I have problem with my ubuntu in kernel 5.x, when i plug modem it's connect to internet and then disconect randomly. But when i was used kernel 4.15.x in my ubuntu its normal.
so i assume the problem is on kernel 5.x doesn't support my modem. So i initiative to install kernel 4.15.0-041500 to my both os, then i try to connect my modem in Linux mint kernel 4.15.0-041500 it's running normal after that i also try in ubuntu kernel 4.15.0-041500 and i get same problem in kernel 5.x. i don't know where is the problem. please help me. thx anyway

Re: Modem always disconect

Posted: Tue May 28, 2019 2:11 pm
by gm10
So to recap, your Linux Mint OS is running fine, your Ubuntu OS that was released a year later is not. Sounds to me like you should be asking for support over at Ubuntu then, this has got nothing to do with Linux Mint.

Re: Modem always disconect

Posted: Tue May 28, 2019 2:18 pm
by Moem
Mod note:
Topic moved out of the Linux Mint support area.

Re: Modem always disconect

Posted: Tue May 28, 2019 2:29 pm
by Ultegro778
gm10 wrote:
Tue May 28, 2019 2:11 pm
So to recap, your Linux Mint OS is running fine, your Ubuntu OS that was released a year later is not. Sounds to me like you should be asking for support over at Ubuntu then, this has got nothing to do with Linux Mint.
Sorry i'm ask here because nobody reply my question in ubuntu forum

Re: Modem always disconect

Posted: Tue May 28, 2019 2:35 pm
by gm10
Well, the likely reason is incompatible firmware. Try one of the older versions of the package. Your Mint is using version 1.173.6:

Code: Select all

$ apt list -a linux-firmware
Listing... Done
linux-firmware/disco-security,disco-security,disco-updates,disco-updates 1.178.1 all [upgradable from: 1.178]
linux-firmware/disco,disco,now 1.178 all [installed,upgradable to: 1.178.1]
linux-firmware/bionic-updates,bionic-updates,bionic-security,bionic-security 1.173.6 all
linux-firmware/bionic,bionic 1.173 all