I agree that is the only reliable way to ensure networking, not good if
you need to restart the odroid remotely though.
Does anyone have hints on how I could find information to help with
debugging? Would be good to get it fixed.
Regards
Michael
On 03/02/2020 15:39, Torbjorn Jansson wrote:
On 2020-01-28 19:36, Michael Whapples wrote:
I have installed fedora 31 on my Odroid XU4 following instructions at
https://blog.pcfe.net/hugo/posts/2019-01-27-fedora-29-on-odroid-hc2/.
Mostly it seems to work, at least for what I want (IE. as a headless
server). There is one problem which I am having.
The built in network controller works most of the time. However I
have found if I do a reboot using shutdown -r now then the network
card is not found by linux (eg. output of lsusb does not show it and
it is not in output from ifconfig).
If I should shutdown using shutdown -h now and then power on by using
the power button, the network controller is detected and networking
works normally.
Some google searches suggest that people with the same model of
realtek network card, but in an external form, have had problems with
their network card because of power management features in Linux. If
I check /sys/bus/usb/devices/6-1/power/control then the value is "on"
which I believe means no power management/suspend. So seems like this
may not be the issue.
Does anyone have any suggestions on what may be wrong? Might this be
a kernel bug and if so where would be best to report it?
Thanks in advance for any help.
Michael
Sounds familiar.
On the Odroids HC2 i got i never do a reboot.
If i need to reboot i do a power off and then pull the power cable and
put it back again since this is the only safe way to make sure network
works well.
Has been like this for a long time.
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