*** This bug is a duplicate of bug 1850541 ***
https://bugs.launchpad.net/bugs/1850541
This will be fixed in Bionic kernel version 4.15.0-71.80. Thank you for
the great work done to identify this issue as well as the fix.
** Also affects: linux (Ubuntu Eoan)
Importance: Undecided
This is fixed upstream in Linus's tree in
c05f8f92b701576b615f30aac31fabdc0648649b. It would be nice if the
Ubuntu kernel could pick up this change.
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So, I messed up the bisection earlier, probably due to not being careful
with the kernel configuration. The actual bad commit is
475fb4e8b2fd1d7b406ff3a7d21bc89a1e6f which makes a lot more sense.
I reported the problem upstream and a fix is in-process.
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OK, so I bisected the kernel versions by using the mainline builds. The
first kernel where this breaks is v4.8-rc1 (v4.7.x works fine).
I think did a git bisection and found that this commit is the bad one:
27b79027bc112a63ad4004eb83c6acacae08a0de
This seems a bit strange to me, though, as this
apport information
** Tags added: apport-collected bionic
** Description changed:
System: Mac Pro 5,1 (mid-2012).
- I'm unable to boot the Ubuntu 18.04 installer ISO on this system (tried
- both 18.04.0 and 18.04.3). I was able to boot the 16.04.1 ISO (but NOT
- 16.04.6) and installed
