Hi Colin Ian King,
I tested the revert kernels from here
https://kernel.ubuntu.com/~cking/lp-1853044/.
The results from Powertop can be found here
https://postimg.cc/gallery/TTmWSfX. I also included the latest 5.3.0-61
kernel for reference.
The test system is an XPS 9550 with HD Graphics 530,
This happens to me on 5.4.0-33-generic (focal). Do you want me to test
these 5.3 kernels?
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Title:
5.3.0-23-generic causes fans to spin when idle
Is there a chance that "flicker after reboot" (that seems to be a side effect
of the previous fix) is gone too?
Is it enough to save the /boot partition to recover system after tests?
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ping? Any one care to test these kernels?
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Title:
5.3.0-23-generic causes fans to spin when idle
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There are nearly 600 commits between the working and non-working kernel.
Rather than work on ~8-9 bisects steps, I've built 5 test kernels that
just the relevant i915 driver commits reverted between the working and
broken kernel.
I've put the .debs at the following location:
Agreed
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Title:
5.3.0-23-generic causes fans to spin when idle
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Unfortunately this bug is back with linux-5.3.0-53.47.
It got reintroduced somewhere between linux-5.3.0-53.47 and 5.3.0-51.44.
System is Dell XPS 9550 with Skylake HD Graphics 530.
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Sure:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872760
But with one of the previous versions (that one that consumes a lot of
power) I didn't have this issue. Hope this will not end up to a either
or decision ;).
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@arno can you file a new bug for this please? Thanks!
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Title:
5.3.0-23-generic causes fans to spin when idle
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As for me (kernel 5.4.0-24-generic #28 I have a bad regression.
After return from suspend state the screen flickers like hell. So it becomes
unusable.
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I can confirm that this is now fixed for me on Ubuntu 18.04.4 LTS with
kernel 5.3.0-46-generic. With this kernel, my Dell Latitude E5470 with a
i5-6440HQ now consumes about 4W in idle instead of 9.W as before.
Thanks a lot!
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This bug was fixed in the package linux - 5.3.0-46.38
---
linux (5.3.0-46.38) eoan; urgency=medium
* eoan/linux: 5.3.0-43.36 -proposed tracker (LP: #1867301)
* Fix AMD Stoney Ridge screen flickering under 4K resolution (LP: #1864005)
- iommu/amd: Disable IOMMU on Stoney
Hi,
happy to see that this regression is addressed in newer Ubuntu releases!
Will this fix be backported to the 5.3.0 series used in Ubuntu 18.04.4?
I was previously running Ubuntu 18.04; then reinstalled to 18.04.4 and
was very surprised to find my time on battery was *cut by half*.
I would
** Tags removed: verification-needed-eoan
** Tags added: verification-done-eoan
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Title:
5.3.0-23-generic causes fans to spin when idle
To
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-
eoan' to 'verification-done-eoan'. If the problem still exists, change
the tag
This bug was fixed in the package linux - 5.4.0-18.22
---
linux (5.4.0-18.22) focal; urgency=medium
* focal/linux: 5.4.0-18.22 -proposed tracker (LP: #1866488)
* Packaging resync (LP: #1786013)
- [Packaging] resync getabis
- [Packaging] update helper scripts
* Add
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-
focal' to 'verification-done-focal'. If the problem still exists, change
the tag
** Changed in: linux (Ubuntu Eoan)
Status: In Progress => Fix Committed
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Title:
5.3.0-23-generic causes fans to spin when idle
To manage
Fix applied for focal, patch sent for eoan:
https://lists.ubuntu.com/archives/kernel-team/2020-February/107761.html
** Changed in: linux (Ubuntu Focal)
Status: Incomplete => Fix Committed
** Changed in: linux (Ubuntu Eoan)
Importance: Undecided => High
** Changed in: linux (Ubuntu
** Description changed:
+ SRU Justification
+
+ Impact: "drm/i915/gen8+: Add RC6 CTX corruption WA" makes it effectively
+ impossible to enter RC6 for some Intel GPUs when a display server is
+ running. This results in increased energy usage and temperature.
+
+ Fix: Upstream has changed too
** Also affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: High
Assignee: Colin Ian King (colin-king)
Status: Incomplete
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Mh. I'll better wait this 6 weeks and check it then again. Who knows,
maybe that is one of the reasons to disable rc6. Won't file a bug at an
outdated version.
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On Sun, Feb 23, 2020 at 08:47:32PM -, arno wrote:
> Thanks. I stay at 5.3.0.18 till then. Stupid question. Screen shudders
> (syncing fails from time to time) after sleep/hibernate. Is this a known
> issue and solved in newer kernels?
That's not an issue I've heard about, but we are
Thanks. I stay at 5.3.0.18 till then. Stupid question. Screen shudders
(syncing fails from time to time) after sleep/hibernate. Is this a known
issue and solved in newer kernels?
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The kernel from Andrea has been stable for me (no GPU hangs). The fans
seem to come on a little more than they did with the previous kernel
from Colin but certainly it's much better than the vanilla 5.4 was.
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On Fri, Feb 21, 2020 at 04:05:08PM -, arno wrote:
> Is it to expect to get the patched kernel 5.3 via usual update (next) or
> do I need to update manually? Didn't do that before
The update will make it's way into the normal updates, though this may
take some time (3-6 weeks typically)
Is it to expect to get the patched kernel 5.3 via usual update (next) or
do I need to update manually? Didn't do that before
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Title:
I believe lp:1863489 is a duplicate of this, but the symptom is powertop
showing that the i915 device is not dropping into RC6 or lower power
state. I was able to reproduce this on my laptop and after installing
the above 5.3 test kernel, powertop is now showing RC6 usage > 90% when
my desktop is
Thanks Andrea - I'm running the kernel now and all is well so far. I'll
update this bug in a few days with my experience.
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Title:
I also built a 5.4 based test kernel (with the extra drm/i915 patches
from https://cgit.freedesktop.org/~ickle/linux-2.6/log/?h=bug112315):
https://kernel.ubuntu.com/~arighi/LP-1853044/
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Hi Dean -- I built a test kernel with the 5.3 patch from the gitlab bug,
please give it a spin to see if it fixes your issue.
https://people.canonical.com/~sforshee/lp1853044/5.3.0-40.32+lp1853044v202002131655/
Thanks!
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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If we think that single patch is a solution then can we get a test
kernel with that patch made available for confirmation and then get that
submitted so it can go into a official 20.04 kernel?
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I'll get a kernel sorted out for testing by EOD.
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Title:
5.3.0-23-generic causes fans to spin when idle
To manage notifications about this bug
This also affects 5.4.0-9-generic - I see the same behavior on today's
focal.
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Title:
5.3.0-23-generic causes fans to spin when idle
To manage
Seems like LP: #1856653 is the same issue.
The solution from Chris Wilson:
https://gitlab.freedesktop.org/drm/intel/issues/614#note_366057
** Bug watch added: gitlab.freedesktop.org/drm/intel/issues #614
https://gitlab.freedesktop.org/drm/intel/issues/614
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Just to close the loop on this, I used the test kernels and the problem
went away.
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Title:
5.3.0-23-generic causes fans to spin when idle
To
Hi Dean,
I've prepared another debug test kernel that has 70+ of the drm patches
removed that were introduced between the 5.3.0-19 and 5.3.9-23 kernels.
If this stops the fan spinning then this implies the regression was
introduced in a drm graphics patch.
Updated revision r2 Debian packages can
I do not, I'm scaled at 200% and I've disabled all experimental-
features.
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Title:
5.3.0-23-generic causes fans to spin when idle
To manage
@Dean, just one sanity check, do you have non-integer icon scaling on
your desktop?
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Title:
5.3.0-23-generic causes fans to spin when idle
To
CPU averages:
5.3.0-19: 2.03W, 99.6% idle, 0.1% in kernel, 93.5% in C10 state, 5.3% in C8
state, 1.66GHz
5.3.0-23: 13.71W, 99.3% idle, 0.1% in kernel, 92.3% in C10 state, 6.1% in C8
state, 2.05GHz
GPU averages:
5.3.0-19: 0.10W
5.3.0-23: 7.19W
ACPI thermal zone:
5.3.0-19:
** Attachment added: "powerstat-5.3.0-23-generic.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853044/+attachment/5307986/+files/powerstat-5.3.0-23-generic.log
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** Attachment added: "acpi-5.3.0-23-generic.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853044/+attachment/5307989/+files/acpi-5.3.0-23-generic.log
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** Attachment added: "powerstat-5.3.0-23-generic-unsigned.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853044/+attachment/5307985/+files/powerstat-5.3.0-23-generic-unsigned.log
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** Attachment added: "acpi-5.3.0-19-generic.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853044/+attachment/5307990/+files/acpi-5.3.0-19-generic.log
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Attachment added: "acpi-5.3.0-23-generic-unsigned.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853044/+attachment/5307988/+files/acpi-5.3.0-23-generic-unsigned.log
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Attached are the logs from all three kernels. The test kernel didn't
seem to make much difference I don't think.
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Title:
5.3.0-23-generic causes
** Attachment added: "powerstat-5.3.0-19-generic.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853044/+attachment/5307987/+files/powerstat-5.3.0-19-generic.log
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I've found 3 possible commits that may have contributed to this
regression. Can you install the kernel headers, image and module debs
in https://kernel.ubuntu.com/~cking/lp-1853044/ and see if this helps
fix the issue.
** Changed in: linux (Ubuntu)
Status: In Progress => Incomplete
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Also, when the fan is running at high speed can you do the following:
sudo apt-get install acpi
acpi -V
and add the output to the bug report
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Hi Dean,
As a first triaging step, with the 5.3.0-23-generic and also the
5.3.0-19-generic kernel do you mind installing and running the following
command:
powerstat -Ra | tee powerstat-$(uname -r).log
and attaching the log files to the bug report. The command takes about
60 seconds to run.
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Colin Ian King (colin-king)
** Changed in: linux (Ubuntu)
Status: Confirmed => In Progress
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