A bug has been filed with the kernel developers here:
https://bugzilla.kernel.org/show_bug.cgi?id=199033
Also, I have confirmed that disabling CONFIG_WDAT_WDT and re-compiling
the kernel, as Alexandre suggested, does allow the RTC to run properly.
** Bug watch added: Linux Kernel Bug Tracker
Just tested again, and the problem still exists in kernel
4.16.0-041600rc1-generic. I'll be sending that update to the kernel
maintainers as well.
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Still no response from the kernel team. After a week, I tested the
newest daily build of the kernel, and the problem still exists. Sent a
follow-up email with that info, and haven't heard anything.
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Here is the link to the email sent to the maintainers list:
https://marc.info/?l=linux-rtc=151683917607842=2
** Tags added: kernel-bug-reported-upstream
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I've followed the instructions in the Wiki page and sent the email to
the maintainers. I will update when I hear back from them.
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https://bugs.launchpad.net/bugs/1743027
Hi Joseph,
As requested, I booted and tested the 4.15.0-041500rc9-generic kernel,
and the problem still exists. Let me know if you have any other
questions.
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1743027/+attachment/5041787/+files/WifiSyslog.txt
** Package changed: compiz-plugins-main (Ubuntu) => linux (Ubuntu)
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The fix in #308 also worked for my Z50-70. Installing the mainline
4.14.9 kernel unlocked the BIOS and allowed for changes to be saved and
I can boot from USB again.
Also, I then reverted to the "fixed" Ubuntu kernel (4.13.0-21-generic
#24-Ubuntu SMP) and the BIOS is still unlocked and
Update from an affected user. I'm running a Lenovo Z50-70 and have had
this bug since upgrading 17.04 to 17.10 in October. However, I am one
of the lucky ones who can still boot both Windows 10 and Ubuntu. I
can't boot from CD, or USB and connect make any changes to the BIOS
settings.
I can
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