This bug was fixed in the package linux - 4.15.0-65.74
---
linux (4.15.0-65.74) bionic; urgency=medium
* bionic/linux: 4.15.0-65.74 -proposed tracker (LP: #1844403)
* arm64: large modules fail to load (LP: #1841109)
- arm64/kernel: kaslr: reduce module randomization range to
This bug was fixed in the package mesa - 19.0.8-0ubuntu0~18.04.2
---
mesa (19.0.8-0ubuntu0~18.04.2) bionic; urgency=medium
* i965-revert-enabling-softpin.diff: Dropped, unnecessary by now and
broke Ice Lake which needs softpin. (LP: #1815172)
* rules: Force -DNDEBUG, meson <
I asked another user to test this on a duplicate bug (from a newer mesa
backport, where the original revert was missing), and it's indeed fixed
now
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1836721/comments/13
** Tags removed: verification-needed verification-needed-bionic
Hi Timo,
if I remember correctly, there were some schools that were affected by this
issue, but I wasn't able to reproduce it in the office due to lack of similar
hardware.
Unfortunately it's not easy to check which were those schools; but I can keep
an eye on this issue, in case I hear about
Alkis, could you double-check if your setup is fine now with the current
4.15 kernel and mesa from proposed? Mine is, but I'd rather not rely on
that test alone.
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** Changed in: linux (Ubuntu Bionic)
Status: Fix Released => Fix Committed
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Title:
[bionic] drm/i915: softpin broken, needs
There's a follow up fix for bionic/linux which needs to be applied:
https://lists.ubuntu.com/archives/kernel-team/2019-August/103175.html
So I'm going to reset the task.
** Changed in: linux (Ubuntu Bionic)
Status: Fix Released => In Progress
** Changed in: linux (Ubuntu Bionic)
All autopkgtests for the newly accepted mesa (19.0.8-0ubuntu0~18.04.2) for
bionic have finished running.
The following regressions have been reported in tests triggered by the package:
vtk6/unknown (armhf)
kf5-messagelib/4:17.12.3-0ubuntu3 (armhf)
firefox/68.0.2+build1-0ubuntu0.18.04.1 (armhf)
Hello Alkis, or anyone else affected,
Accepted mesa into bionic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/mesa/19.0.8-0ubuntu0~18.04.2 in a
few hours, and then in the -proposed repository.
Please help us by testing this new package. See
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
xenial' to 'verification-done-xenial'. If the problem still exists,
change the tag
** Changed in: mesa (Ubuntu Bionic)
Status: Fix Committed => In Progress
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Title:
[bionic] drm/i915: softpin broken, needs to
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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Title:
[bionic] drm/i915: softpin broken, needs
** Changed in: mesa (Ubuntu Bionic)
Status: In Progress => Fix Committed
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Title:
[bionic] drm/i915: softpin broken, needs to
Nevermind, I used a thinkpad t470s plus an external ssd which I could
wipe out and install ubuntu mate 18.04 32bit on it. To reproduce I
enabled the HWE ppa and upgraded mesa, then installed linux-generic and
booted 4.15.0-55. It ended up with a mostly blank screen but keyboard
had no effect other
could you please test with ppa:canonical-hwe-team/ppa which has a new
4.15 kernel with a couple of backports that should fix this, and it also
comes with mesa that dropped the revert
apparently I don't have hw which can install 32bit ubuntu and reproduce
this
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Reopening mesa for bionic, because the revert needs to be dropped once
the kernel is fixed, otherwise Ice Lake is broken because it needs
softpin for the DRI driver to work.
** Changed in: mesa (Ubuntu Bionic)
Status: Fix Released => In Progress
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** Changed in: linux (Ubuntu Cosmic)
Status: New => Won't Fix
** Summary changed:
- Black screen on skylake after 18.0 => 18.2 update
+ [bionic] drm/i915: softpin broken, needs to be fixed for 32bit mesa
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This bug was fixed in the package mesa - 18.2.8-0ubuntu0~18.10.2
---
mesa (18.2.8-0ubuntu0~18.10.2) cosmic; urgency=medium
* i965-revert-enabling-softpin.diff: Don't enable softpin, causes
issues on 32bit installs. (LP: #1815172)
mesa (18.2.8-0ubuntu0~18.10.1) cosmic;
This bug was fixed in the package mesa - 18.2.8-0ubuntu0~18.04.2
---
mesa (18.2.8-0ubuntu0~18.04.2) bionic; urgency=medium
* Backport to bionic.
mesa (18.2.8-0ubuntu0~18.10.2) cosmic; urgency=medium
* i965-revert-enabling-softpin.diff: Don't enable softpin, causes
issues on
Exactly. I did the "verification-done-bionic" step for 18.2.2 in comment
#12 above; and unfortunately I don't have an affected school nearby,
where I could test 18.2.8 in cosmic, and installing cosmic in a remote
school would be hard.
Thanks a lot Timo!
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bionic was already fixed earlier by 18.2.2-0ubuntu1~18.04.2 in time for
18.04.2 release
cosmic got the exact same oneliner in 18.2.8-0ubuntu0~blah, and then
that was backported to bionic which reopened this bug. Requiring Alkis
to test this on cosmic is too much IMO, as it would involve first to
actually, bionic was already tested earlier, and the tested fix is a
one-line change to mesa which is still the same on 18.2.8 so marking
bionic verified.. and also cosmic since it's the exact same version
there, and cosmic kernel was also tested to be buggy
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** Tags removed: verification-needed verification-needed-bionic
verification-needed-cosmic
** Tags added: verification-done verification-done-bionic
verification-done-cosmic
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Alkis, please test 18.2.8 for bionic and if possible, cosmic
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Timo Aaltonen (tjaalton)
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** Changed in: mesa (Ubuntu Cosmic)
Importance: Undecided => Medium
** Changed in: mesa (Ubuntu Bionic)
Importance: Undecided => High
** Changed in: mesa (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux
** Changed in: mesa (Ubuntu)
Status: Invalid => Fix Released
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Title:
Black screen on skylake after 18.0 => 18.2 update
please test the new mesa on bionic/cosmic
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Title:
Black screen on skylake after 18.0 => 18.2 update
Status in Mesa:
Fix Released
disco has 4.19.x
** Changed in: mesa (Ubuntu)
Status: New => Invalid
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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Just correcting a wrong comment (#2) I made:
> It happens on both 32bit and 64bit installations.
I asked the school that reported the issue on 64bit to check again, and
they said they have a 32bit installation after all.
So the problem has only been reported in 32bit installations; I don't
know
Hello Alkis, or anyone else affected,
Accepted mesa into bionic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/mesa/18.2.8-0ubuntu0~18.04.2 in a
few hours, and then in the -proposed repository.
Please help us by testing this new package. See
** Changed in: mesa
Status: Confirmed => Fix Released
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Title:
Black screen on skylake after 18.0 => 18.2 update
Status in
FWIW, I am not able to reproduce this issue on Arch Linux with Mesa
18.3.3 and kernel 4.18.16.
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Title:
Black screen on skylake
Hello, Alkis.
Could you, please, try to use a kernel not less than v4.19.3?
And could you provide outputs of
/usr/bin/glxinfo -B
file /usr/bin/glxinfo
uname -a
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4.15 is EOL upstream, but Canonical does pull patches from stable to the
distro kernel in 18.04, I'm not sure why these never got in.. probably
didn't apply cleanly.
anyway, I'll make sure they get applied eventually, but for now will
disable softpin from mesa so that 32bit 18.04.2 image will
I tried a small kernel bisection using the ubuntu kernel binaries,
4.19.2-041902=fails,
4.19.3-041903=works
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Title:
Black screen on
Hello Sergii,
I tried with 4.20.7 and it appears to work fine! Thanks!
Output of the commands:
# uname -a
Linux srv-6gym-chalk 4.20.7-042007-generic #201902061234 SMP Wed Feb 6 17:49:39
UTC 2019 i686 i686 i686 GNU/Linux
# file /usr/bin/glxinfo
/usr/bin/glxinfo: ELF 32-bit LSB shared object,
Most likely mesa were broken with commit:
commit a363bb2cd0e2a141f2c60be005009703bffcbe4e
Author: Kenneth Graunke
Date: Tue Apr 10 01:18:25 2018 -0700
i965: Allocate VMA in userspace for full-PPGTT systems.
In the kernel (especially 32-bit) it requires such commits (all of them are
Most likely mesa were broken with commit:
commit a363bb2cd0e2a141f2c60be005009703bffcbe4e
Author: Kenneth Graunke
Date: Tue Apr 10 01:18:25 2018 -0700
i965: Allocate VMA in userspace for full-PPGTT systems.
In the kernel (especially 32-bit) it requires such commits (all of them are
I don't know the software stacks involved:
If I understood it correctly,
mesa 18.3.3 doesn't work with older kernels while 18.0 did work,
and so I'll do a bisection to see which kernel commit fixes the issue,
and then distro kernel maintainers may cherrypick it for older kernels.
If there's no
< I tried with 4.20.7 and it appears to work fine! Thanks!
You are welcome :)
So closing?
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Title:
Black screen on skylake after
one theory is that this is related to legacy bios boot
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Title:
Black screen on skylake after 18.0 => 18.2 update
Status in Mesa:
I just tried with 4.18.0-14-generic, the same issue happens there as
well.
And, another school reported the issue on HD Graphics 630:
root@pc02:~# lspci -nn -k | grep -A 2 VGA 00:02.0 VGA compatible
controller [0300]: Intel Corporation HD Graphics 630 [8086:5912] (rev
04) Subsystem:
This bug was fixed in the package mesa - 18.2.2-0ubuntu1~18.04.2
---
mesa (18.2.2-0ubuntu1~18.04.2) bionic; urgency=medium
* i965-revert-enabling-softpin.diff: Don't enable softpin, causes
issues on 32bit installs. (LP: #1815172)
-- Timo Aaltonen Fri, 08 Feb 2019 19:12:58
The verification of the Stable Release Update for mesa has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report. In
the event that you encounter a
I verify that the bionic-proposed package addresses the issue.
Tested in:
# lspci -nn -k | grep -A 2 VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 630
[8086:5912] (rev 04)
Subsystem: Gigabyte Technology Co., Ltd HD Graphics 630 [1458:d000]
Kernel
** Tags added: bjf-tracking
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Title:
Black screen on skylake after 18.0 => 18.2 update
Status in Mesa:
Confirmed
Status in linux
Hello Alkis, or anyone else affected,
Accepted mesa into cosmic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/mesa/18.2.8-0ubuntu0~18.10.2 in a
few hours, and then in the -proposed repository.
Please help us by testing this new package. See
Hello Alkis, or anyone else affected,
Accepted mesa into bionic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/mesa/18.2.2-0ubuntu1~18.04.2 in a
few hours, and then in the -proposed repository.
Please help us by testing this new package. See
this is caused by enabling softpin in mesa, which is supported in kernel
4.5 and up but is still somewhat buggy as seen here.. we need these
commits backported to the kernel:
9125963a9494253fa5a29cc1b4169885d2be7042 drm/i915: Mark up GTT sizes as u64
6fc4e48f9ed46e9adff236a0c350074aafa3b7fa
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