I am very interested in the answer because my desktop does the same thing if I tell it to hibernate, boot into my windows dual boot, and reboot back into linux. I can regain network access again by hibernating again and booting back into linux directly (no windows). Pretty annoying because it takes a solid 2-5 minutes to shut down when hibernating. At least it still does the job, just with delay.
This only happens if I try hibernating and then boot into windows (not full shutdown, not hibernate and boot directly to linux). It has always happened since I enabled hibernation (arch wiki instructions). Having Systemd restart NetworkManager does nothing. Setting up a new network configuration with networkmanager does not solve it. This is with my motherboard ethernet and my wireless USB adapter. I spent some good energy trying to figure it out, but never did. Did you update kernels today? What if you downgrade? Put the solution as a boot script. Or at least bash profile instead of run commands (otherwise it will run every time you spawn a terminal shell) Sep 23, 2022 11:14:35 Jim via PLUG-discuss <plug-discuss@lists.phxlinux.org>: > A few months ago my Dell Optiplex 7010 running Ubuntu 20.04 started booting > up without the network. I'd reboot the machine and the network was there. > If I shut down the machine and turned it on again, no network. I thought > something was wrong with the built in ethernet adapter, so I bought a usb > adapter, disabled the built in one and the problem went away until today. > Now it's happening with the usb ethernet adapter. Rebooting the machine > fixes the problem gets the network up and running. If I start with a cold > boot and reboot at the grub screen, I get the network. I have 3 SSDs and 2 > HDDs. I have the same video card that I had before this problem first showed > itself. It's a GeForce GT 710. > > I looked online and found something telling of other people who have had this > problem. They disconnected video cards and went back to the built in video > (display port), and removed hard drives that had been added later and this > fixed the problem. The ultimate solution was to replace the power supply. I > disconnected one SSD and the 2 HDDs. I don't have anything that can use a > display port, so I left the video card in place. All I had connected were 2 > SSDs. One it boots from and my home directory is on the other. The problem > still showed itself when I booted the machine, so I shut down and plugged in > everything again. This thing has a 240 watt power supply. Do power supplies > go band in such a way they don't produce the amount of power they used to? > > Any ideas what it might be? Is there a command that would tell the system to > set up the network again? If there is, I could put it in the .bashrc until I > get this fixed. > > Thanks > > --------------------------------------------------- > PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > https://lists.phxlinux.org/mailman/listinfo/plug-discuss --------------------------------------------------- PLUG-discuss mailing list: PLUG-discuss@lists.phxlinux.org To subscribe, unsubscribe, or to change your mail settings: https://lists.phxlinux.org/mailman/listinfo/plug-discuss
