Would like to push it again.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend display is flickering / *ERROR* CPU
pipe A FIFO underrun
I would be great to see any progress in it.
Just tested Manjaro with newer 5.9 kernel, but the issue keeps same.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 -
The same issue on my Lenovo T14s, frequently hanging after suspend. I'm
using Ubuntu 20.04, with HWE kernel version 5.8.0-40-generic. I have two
external monitors with 1980x1080 res, connected through a 2xHDMI to
USB-C connector using DisplayLink.
This is really annoying! Are there any efforts
The error message from Kernel about this issue is:
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
** Summary changed:
- i915 - after return from suspend display is flickering
+ i915 - after return from suspend display is flickering / *ERROR* CPU pipe A
FIFO
As for me there are 2 ways to get rid of flickering, but both are not make me
happy:
Either in grub add:
- GRUB_CMDLINE_LINUX="intel_idle.max_cstate=4"
or (that is new to me)
- change screen resolution(!?!) Anything else than 1920x1080 works! If I can
add custom resolutions I would play with
As far as I see : no response from mailing-list. :( So all the effort
here is wasted?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend
The mailing list for i915 is intel-...@lists.freedesktop.org.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend display is flickering
The bug in that mentioned list is also old (2month). Can you recommend a
list where this upstream things are handled best... there seems to be so
many (confused).
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
I can confirm that the workaround helps, but I need the power saving
states too.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend display
I think the upstream i915 developers might be able to best help you,
since the issue still exists in 5.7. I checked and this report looks to
be the same problem:
https://gitlab.freedesktop.org/drm/intel/-/issues/347
I'd suggest trying to help the developers debug the problem there.
Looks like
Help please, that flickering drives me crazy
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend display is flickering
Status in linux
Things get worse with 5.7.rc2.
It is not just a missed module, also Display is flickering right from start
(not onyl after suspend). No - this is not the way to go Sorry
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in
** Description changed:
- Test this with Ubuntu 20.04 (Mate) beta installer.
+ Test this with Ubuntu 20.04 (Mate) beta installer. Also happen with current
official version.
Kernel is 5.4.0-21 #25 (if I remember right).
All works fine, but after returning from suspend the display is
Mh reading the report in your mentioned bug I see that bug should be fixed
already in 5.4.0-42 and 5.4.x
This is not what I observe. The newest I have been testing was 5.5.18 mainline
from ubuntu.
Also I didn't have this issue in older 19.10/18.04 - but there I did have a
much higher power
So it looks thesame (maybe a little less) but happens under different
circumstances?
I'm experiencing a similar issue and maybe got a temporary fix.
All I know is that with my laptop (Lenovo Yoga C940 14IL) i've got thesame
flickering as in that issue on Kubuntu 19.10, Kubuntu 20.04 and Fedora
It seems to be more in the video. BUT - screen is ok BEFORE suspend.
It happens here only after suspend or - what I observed yesterday - while
calibrating powertop.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
There seems to be a known issue of i915 related screen flickering with
relation to power states, refresh rates and eDP for intel i915 in recent
kernels. (If i understand the issue correctly)
Can you confirm that the flickering is thesame as the videos in the
description of:
Thanks Seth, but (don't know why) this status "confirmed" was not an option to
select for me. That is something that can just another one than the reporter.
Do you think it deals with re-introduction of power saving ?
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853044
Here I have
Because someone has to manually flip it once information has been
provided. Setting it to confirmed, buy you should also be able to do
that for your own bug.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
--
You received this bug notification because you are a member of
Why status is incomplete - I did everything that has been requested...
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend display is
I checked for the latest update (5.3.0-25-generic) and (as there is no 5.4
build) the latest 5.5.18 mainline kernel.
Both flicker after suspend!
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
As far as I can see there is no build for amd64 (failed) for the 5.4.30
mainline.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend display
Not sure that I know how to install that kernel.
I checked the previous
5.4.0-21-generic #25
kernel, but that flickers too after resuming from suspend.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
Can you try a vanilla 5.4.30 kernel from here, and see if it has the
same problem? That will let us know if any of the fixes we've applied on
top of 5.4 is responsible.
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.30/
Note that you will need to disable secure boot to boot into this
This is first attempt with focal/5.4 kernel, the beta. Not sure but I think the
installer has an even earlier kernel version but the same problem.
Before I was fighting with ubuntu 19.10 (see
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863489
https://bugs.launchpad.net/bugs/1853044)
Actually there is something in the logs that I missed the first time:
[ 69.108687] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR*
CPU pipe A FIFO underrun
Do you know whether earlier 5.4 kernels in focal also had this same
issue? If not, do you know the last version you used which
Oh, no that is fine then. Sorry, on the other bug you said the system
was unusable after suspend so I assumed that you could not run apport-
collect in that state.
Unfortunately the logs don't show anything strange happening.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
Mh, I bootet (all looks fine), go to standby, recover from standby -
screen shutters. Than I did the apport-collect. That is wrong timing?
What do you expect to see in logs, so that I can take care?
--
You received this bug notification because you are a member of Kernel
Packages, which is
The attached logs are from the current boot, which doesn't show anything
from when the corruption actually happened. Can you get logs from a
previous boot where you did see the corruption? For example, if you know
this happened the last time you booted, you can use 'journalctl -b -1',
or
apport-collect returns message that dpkg-query doesn't find a packet
matching linux
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend
Seems I can't change status to complete ... !?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1872760
Title:
i915 - after return from suspend display is flickering
Status in linux
apport information
** Tags added: apport-collected focal
** Description changed:
Test this with Ubuntu 20.04 (Mate) beta installer.
Kernel is 5.4.0-21 #25 (if I remember right).
All works fine, but after returning from suspend the display is flickering.
For the installer / USB stick
32 matches
Mail list logo
