It seems I stumbled on a workaround. Just install the kernel that comes
in the 18.04.2 ISO:
https://launchpad.net/ubuntu/+source/linux-hwe
** Also affects: linux-hwe (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-hwe (Ubuntu Bionic)
Status: New => Fix Released
I can reproduce this bug by creating a guest OS using a 18.04.1 .iso I
downloaded last year and attempting to update.
I created another guest OS using the 18.04.2 .iso I downloaded yesterday works
fine after updating.
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Using VirtualBox 6 and VMSVGA as recommended by Eric I still can't
reproduce the bug. But I think I can see why now: Ubuntu 18.04.2 comes
with kernel 4.18
Let me try 18.04.1...
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It also sounds like VirtualBox might allow me to reproduce the bug...
** Changed in: mutter (Ubuntu Bionic)
Status: Incomplete => In Progress
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Because it was mentioned in comment #15 & #34 that this bug cannot be
reproduced, I decided to create a VMWare VM from scratch which managed
to be affected on my first attempt.
I started with ubuntu-18.04.1-desktop-amd64.iso
(19e10acddd14af9a9150399d876b02933c0ee724) and created a snapshot with
al
** Changed in: mutter (Ubuntu Bionic)
Importance: Undecided => High
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Title:
Login screen never appears on vmwgfx but installing k
My reproducer:
1) I used virtualbox 6.0.0 on disco (my desktop machine) # I guess it doesn't
really matter but I prefer giving more details than less ;)
2) Deploy a VM with Ubuntu 18.04.1 (which come w/ 4.15)
3) Make sure in the VM setting that the display uses 'VMSVGA' which will force
the OS t
** Changed in: mutter (Ubuntu Bionic)
Status: Won't Fix => Incomplete
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Title:
Login screen never appears on vmwgfx but instal
> Do you know what change could have introduced this vmwgfx/wayland
interaction problem inside mutter in the first place ?
Technically it was a whole point release. The trigger could be any
change that went into mutter 3.28.4 as well as any Ubuntu patch. As
mentioned in comment #31, my suspicion i
To continue on my comment #59 ... One user has been impacted on a
physical machine (non-vmware) with the same symptom but can't provide
public details unfortunately, but I witnessed the problem from my own
eye via remote session, and again upgrading to 4.18 kernel did the
trick.
So it really seems
as an fyi ...
It has been brought to my attention that this could impact other system
(outside vmware context)
so I still suspect a userspace change (possibly mutter) that introduce
behaviour change and break the interaction with certain part of the 4.15 kernel.
Do we know if the recent point r
of if we identify the offending userspace change, then we can look at
the kernel again and try to find what bit are missing, and if we limit
the kernel change then maybe the side-effect won't be present too.
I think the next step is really to find what userspace change started
all this so we can f
or if we identify the offending userspace change, then we can look at
the kernel again with and try to find what bit are missing, and if we
limit the kernel change then maybe the side-effect might not be present
again. (assumption here)
I think the next step is really to find what userspace change
Daniel van Vugt (vanvugt),
Do you know what change could have introduced this vmwgfx/wayland
interaction problem inside mutter in the first place ?
I have strong believe, that something userspace has been changed and no
longer interact well with the vmware driver since then.
Just to look at our
The patchset is significant already without knowing yet what is missing to
address the side-effect.
I would need kernel team review/approval before thinking to SRU this into
Ubuntu 4.15.
I can't SRU this as-is, now knowing this will introduce a regression.
I'll keep you guys posted.
- Eric
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Thanks Pat.
That seems to confirm the 'regression-update' tag here. Although I
wouldn't be able to debug and fix the mutter change because I can't
reproduce the bug, using VMware. Mine just works :/
It sounds like good progress is being made in the kernel anyway. So I
think a fix there would be p
Card archived: https://trello.com/c/gn0J5Qgb
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Title:
Login screen never appears on vmwgfx but installing kernel >=
v4.17-rc1 (or u
Daniel,
I didn't want to lose sight of your ask in comment #34.
I updated to the latest mainstream kernel, and then reverted the mutter
packages (as per comment #31).
That also fixes the problem.
Specifically, this configuration is working for me;
uname -a
Linux ubuntuvm1 4.15.0-52-generic #56-
Display resizing works as expected on the hwe 4.18 kernel
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Title:
Login screen never appears on vmwgfx but installing kernel >=
v4
Do you have the same display resizing situation with the hwe kernel 4.18
?
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Title:
Login screen never appears on vmwgfx but installi
As a side-effect, I've noticed that display resizing doesn't work the same.
I'm unable to resize the display to anything more than 1176 x 885 (4:3)
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Great work Eric!
I installed your kernel build and it seems to work.
As confirmation of the kernel build level, here is uname -a output
immediately after install & reboot.
uname -a
Linux ubuntuvm1 4.15.0-53-generic #57+hf231164v20190618b9-Ubuntu SMP Tue Jun 18
20:11:42 UTC 2019 x86_64 x86_64 x86
I successully applied your latest patch above and it was fixed!
Thank you so much!
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Title:
Login screen never appears on vmwgfx but
My test kernel can be found here, if one want to test:
sudo add-apt-repository ppa:slashd/kernel-builder
sudo apt-get update
version: 4.15.0-53.57+hf231164v20190618b9
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https
It's working if I apply the whole chain of commit on top of Ubuntu-4.15
I'll need to talk with kernel team and see if this is feasible for an
SRU.
52a59da2c439 drm/vmwgfx: Send the correct nonblock option for atomic_commit
cfffdaad3db9 drm/vmwgfx: Move the stdu vblank event to atomic function
b8d
This commit has most likely other 'drm/vmwgfx' commit deps. I'll work at
finding what other bits are missing.
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Title:
Login screen n
I have applied the good fix on top of current branch 4.15.0-53.57
---
c6d53184e8b8 drm/vmwgfx: Send the correct nonblock option for atomic_commit
c78b765c2de0 UBUNTU: Ubuntu-4.15.0-53.57
---
Build the kernel and I got the same problem still. Need to investigate
why it works fine using upstream wh
I have applied the good fix on top of current branch 4.15.0-53.57
---
c6d53184e8b8 drm/vmwgfx: Send the correct nonblock option for atomic_commit
c78b765c2de0 UBUNTU: Ubuntu-4.15.0-53.57
---
Build the kernel and I got the same problem still. Need to investigate
why it works fine using upstream bu
I'll do my best to provide a test kernel by tomorrow, for impacted user
to test, and confirm it works before I submit it to the Ubuntu kernel
team.
Stay tuned.
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904efd9e3f4c8f288b1279a316eed8e177190c8f^ (AKA
ac3069e67f5659131d7ac5f54d966005bbc40af8) have the problem, but
904efd9e3f4c8f288b1279a316eed8e177190c8f doesn't.
So the kernel bisection is completed and found the right good commit
which is:
https://github.com/torvalds/linux/commit/904efd9e3f4c8f288
904efd9e3f4c8f288b1279a316eed8e177190c8f^ (AKA
ac3069e67f5659131d7ac5f54d966005bbc40af8) have the problem, but
ac3069e67f5659131d7ac5f54d966005bbc40af8 doesn't.
So the kernel bisection is completed and found the right good commit
which is:
https://github.com/torvalds/linux/commit/904efd9e3f4c8f288
https://github.com/torvalds/linux/commit/904efd9e3f4c8f288b1279a316eed8e177190c8f
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Title:
Login screen never appears on vmwgfx but i
wbug: With Bug
wnbug: With No Bug
git bisect start '--term-old=wbug' '--term-new=wnbug' '--'
'drivers/gpu/drm/vmwgfx'
# wbug: [62e9ccfaaedffd057e921fca976f9f7f71c9b254] Linux 4.16.18
git bisect wbug 62e9ccfaaedffd057e921fca976f9f7f71c9b254
# wnbug: [37efe80ce85f76b3b30d7b4ea40550e6a5a5b71a] dr
** Changed in: linux (Ubuntu Bionic)
Status: Confirmed => In Progress
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Title:
Login screen never appears on vmwgfx but instal
"20fb5a635a0c" also works just fine on my side, will continue with the
kernel bisect.
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Title:
Login screen never appears on vmwgfx b
Building a kernel with "37efe80ce85f drm/vmwgfx: use monotonic event
timestamps" being the HEAD doesn't exhibit the issue.
I'm now building and about to test 37efe80ce85f^1 (AKA 20fb5a635a0c) to confirm.
In theory it should fails with "20fb5a635a0c" if "37efe80ce85f" is the one.
- Eric
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The status for mutter will remain incomplete till someone tries the
suggestion from comment #31.
Sorry, I still can't reproduce this bug myself.
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The problem I mentioned in comment #15 is now logged as bug 1833045.
It's clearly different to this one.
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Title:
Login screen never
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Eric Desrochers (slashd)
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Title:
Login screen never appears on v
Pat,
Re comment #19, your crash (hang) reports there seem to show the gnome-
shell process behaving normally (in poll) and not stuck at all. That
doesn't tell us much but it would support the theory in comment #31.
** Summary changed:
- Login screen never appears on vmwgfx but installing kernel
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