Daniel, thanks for the suggestion!
This is quite possibly a duplicate of
https://gitlab.freedesktop.org/drm/amd/-/issues/2352.
I'm evaluating the suggestion to add "amdgpu.dcdebugmask=0x10" to the
kernel boot parameters. That parameter seems to disable PSR, see below.
➜ ~ sudo cat /sys/kernel/d
Adding the kernel boot parameter fixes the flickering screen.
Short HOWTO:
- open `/etc/ default/grub`
- add "amdgpu.dcdebugmask=0x10" as kernel boot parameter to
`GRUB_CMDLINE_LINUX_DEFAULT` (on my system this now reads "quiet splash
amdgpu.dcdebugmask=0x10")
- call `sudo update-grub`
- r
@Daniel: so yes, this was indeed PSR. Disabling it fixes this issue.
Thanks for the support!
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Title:
Screen flickering/ tear
@Timo: I tried 6.1.21 recently, and an older 6.2 mainline kernel
(6.2.2?) from the kernel-ppa. The screen flicker/ tearing was still
present on both.
As a whole the system appeared somewhat unstable (occasional system
halt), but I did not investigate, just went back to linux-oem-6.1.
Should it be
I've tried 6.3rc5 (6.3.0-060300rc5-generic) without the parameter, and
the flickering is still there at times. It appears to be a lot less than
on 6.1/6.2 (without parameter set), though that's a very subjective
observation.
@Mario: Is there anything I can do to analyze further?
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Hi Mario, thanks for your support!
I will test the following kernel parameter settings and report back:
Test 1: amdgpu.dcdebugmask=0x10 amdgpu.sg_display=0 (running now)
Test 2: amggpu.sg_display=0
Cheers,
Roemer
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Test 1: amdgpu.dcdebugmask=0x10 amdgpu.sg_display=0
All well, no observations during a full workday.
Test 2: amggpu.sg_display=0
Flicker/tear is back, and a full screen freeze within 10 minutes.
About the screen freeze: contrary to yesterday the laptop was now
connected to a second screen. I wa
Test 2, no external monitor connected
Another system halt with the following error:
Apr 6 12:51:59 rct14s kernel: [11686.738468] amdgpu :33:00.0: [drm]
*ERROR* [CRTC:72:crtc-0] flip_done timed out
I am now re-enabling "amdgpu.dcdebugmask=0x10" since that seemed to be
running quite well.
k
Short, massive flickering while running with parameters
"amdgpu.dcdebugmask=0x10 amdgpu.sg_display=0", see video:
https://www.youtube.com/watch?v=7WPtMy1nrT8
I suspect this is a separate issue, as I have not seen flickering on
this scale before, it used to be a very quick, hardly noticeable tear.
** Attachment added: "PXL_20230406_120734843.jpg"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2009952/+attachment/5661609/+files/PXL_20230406_120734843.jpg
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** Summary changed:
- [amdgpu][psr] Screen flickering/ tearing on 6.1 kernel
+ [amdgpu][psr] Screen flickering/ tearing on 6.1/6.2/6.3 kernel
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UPDATE 2 after testing 6.4rc5.
Still a PSR-related problem when running without
"amdgpu.dcdebugmask=0x10" (see kern.log below), apart from that very
happy with 6.4-rc5. The flicker/ tearing issue seems to be solved
(yeah!).
Without the kernel parameter I do get the following error though,
apparen
Hi Mario,
I have to apologize, I was a little bit too fast sending that update.
Immediately afterwards I had the screen flickering again, with some
blackouts as well. I was able to make a video, see
https://www.youtube.com/watch?v=yjL9OuXhdeg. No errors in the log
though.
I will have to see if I
Hi Mario,
I've recompiled kernel 6.4-rc5 with the patch applied, and get the same
error (see below). No screen tearing/ flicker - yet. I'll report back
after a day of work to see if the patch had any effect.
Thanks again for your support, best,
Roemer
$ cat /proc/cmdline:
BOOT_IMAGE=/boot/vml
No luck running with the patch and without "amdgpu.dcdebugmask=0x10",
sadly.
There is still occasional screen flickering, and sometimes (once every
15 mimutes or so) a blank screen.
Then after a few hours of use, the display froze completely, and I could
only reclaim control through 1) suspend an
** Summary changed:
- HWE-22.04 Kernel 5.19 breaks suspend/wake on newer AMD Ryzen 6000u
+ HWE-22.04 Kernel 5.19 breaks suspend/wake on newer AMD Ryzen CPUs
** Description changed:
After 22.04 LTS upgraded the linux-generic-hwe kernel to 5.19.0.32 (from
5.15.0.60) suspend/wake up is broken o
6.1 from linux-oem-22.04c indeed fixes this suspend/ resume issue for
me.
6.1 from linux-oem-22.04c doesn't feel as mature as 5.15 though, there
is some repaint/ flickering screen bug that I haven't seen in either
5.15 or 5.19 (but was also present in mainline 6.1). It does seem
somewhat more effi
Hi Daniel, thanks for the suggestion!
My current setup:
$ uname -rv
6.1.0-1007-oem #7-Ubuntu SMP PREEMPT_DYNAMIC Wed Feb 8 15:41:05 UTC 2023
$ cat /sys/kernel/debug/dri/0/eDP-1/psr_capability
Sink support: yes [0x03]
Driver support: yes [0x01]
$ cat /sys/kernel/debug/dri/0/eDP-1/psr_state
Public bug reported:
After upgrading from kernel 5.19.0-35-generic to 6.1.0-1007-oem there is
occasional screen flicker/ tear. It happens around every minute; it
seems connected to window/ pointer movement, but I have no clear way of
reproducing. Disruption is minor, but annoying.
I'm running 22
Screen flickering/ tear bug filed in
https://bugs.launchpad.net/ubuntu/+source/linux-meta-
oem-6.1/+bug/2009952.
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Title:
HW
Public bug reported:
After 22.04 LTS upgraded the linux-generic-hwe kernel to 5.19.0.32 (from
5.15.0.60) suspend/wake up is broken on my laptop.
The system refuses to wake up in about 50% of the cases, seemingly
random.
Reverting back to 5.15.0.60 resolves this issue immediately.
I suspect some
** Description changed:
After 22.04 LTS upgraded the linux-generic-hwe kernel to 5.19.0.32 (from
5.15.0.60) suspend/wake up is broken on my laptop.
The system refuses to wake up in about 50% of the cases, seemingly
- random.
+ random. The only "solution" is a forced system power down.
Installing mainline 6.1 resolves the issues again. Now running:
Linux 6.1.12-060112-generic #202302141939 SMP PREEMPT_DYNAMIC Tue Feb 14
19:45:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
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kern.log attached, suspend on line 59124
** Attachment added: "kern.log"
https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-5.19/+bug/2007718/+attachment/5649624/+files/kern.log
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** Description changed:
After 22.04 LTS upgraded the linux-generic-hwe kernel to 5.19.0.32 (from
5.15.0.60) suspend/wake up is broken on my laptop.
The system refuses to wake up in about 50% of the cases, seemingly
random. The only "solution" is a forced system power down.
Revertin
** Description changed:
After 22.04 LTS upgraded the linux-generic-hwe kernel to 5.19.0.32 (from
5.15.0.60) suspend/wake up is broken on my laptop.
The system refuses to wake up in about 50% of the cases, seemingly
random. The only "solution" is a forced system power down.
Revertin
For completeness: Apport data
** Attachment added: "Apport data"
https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-5.19/+bug/2007718/+attachment/5649649/+files/apport.txt
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Testing 6.4-rc2 now, it seems the S/G mode issue is indeed resolved.
It's been 2 days only, but the new kernel seems really stable.
I'm now running without the "amdgpu.sg_display=0" kernel param.
It seems the tearing issue is still there though, the
"amdgpu.dcdebugmask=0x10" is still needed.
--
Hi Mario,
Not entirely sure if this is the exact logging you are looking for, but
this is the result from my testing.
I've installed the latest firmware, running mainline kernel 6.4.0 on
Jammy LTS on an AMD 6850u T14s Gen 3.
Hope this helps to pinpoint the PSR problems. If you would like me to
t
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