[BDW] After screen turn off / turn on rendering get slow, one frame per few dozens of seconds [CRTC:39:pipe A] flip_done timed out
Submitted by RussianNeuroMancer @RussianNeuroMancer
Assigned to Intel GFX Bugs mailing list
Link to original bug (#105405)
Description
Created attachment 137916
dmesg-tip
Originally reported here: https://bugs.freedesktop.org/show_bug.cgi?id=104573#c12
With Linux 4.15 it was easy to reproduce and with cod/tip/drm-tip/2018-03-08 (fc93d196b8e428bc5a186bde78f412aa30081f38) it's now harder to reproduce, but still possible. I no longer can reproduce issue with rotate, but still can reproduce issue with screen turn off/turn on.
How issue was reproduced:
On Ubuntu 18.04 x86_64 with Gnome 3.28 Beta.
In Gnome Shell Wayland session.
With boot option intel.psr=1
Dell 7140 (M-5Y71) internal display is connected via eDP.
dmesg with "intel.psr=1 drm.debug=0x1e log_buf_len=1M" boot options is attached.
Attachment 137916, "dmesg-tip":
dmesg-tip
Activity
added Community feature: display/PSR platform: BDW priority::lowest severity::major + 1 deleted label
@jani.saarinensaid:First of all. Sorry about spam.
This is mass update for our bugs.
Sorry if you feel this annoying but with this trying to understand if bug still valid or not.
If bug investigation still in progress, please ignore this and I apologize!
If you think this is not anymore valid, please comment to the bug that can be closed.
If you haven't tested with our latest pre-upstream tree(drm-tip), can you do that also to see if issue is valid there still and if you cannot see issue there, please comment to the bug.@dpandiyasaid:(In reply to russianneuromancer from comment 0)
Created attachment 137916 [details]
dmesg-tip
Originally reported here:
https://bugs.freedesktop.org/show_bug.cgi?id=104573#c12
With Linux 4.15 it was easy to reproduce and with cod/tip/drm-tip/2018-03-08
(fc93d196b8e428bc5a186bde78f412aa30081f38) it's now harder to reproduce, but
still possible. I no longer can reproduce issue with rotate, but still can
reproduce issue with screen turn off/turn on.
How issue was reproduced:
On Ubuntu 18.04 x86_64 with Gnome 3.28 Beta.
In Gnome Shell Wayland session.
With boot option intel.psr=1
Dell 7140 (M-5Y71) internal display is connected via eDP.
dmesg with "intel.psr=1 drm.debug=0x1e log_buf_len=1M" boot options is
attached.
To be sure, the command line option you are using is "i915.enable_psr=1" right ? And not "intel.psr=1" like you've stated above.
Does this happen only if you boot with i915.enable_psr=1?
When do you start seeing the flip time outs? login screen? or are you running any tests?
What happens if you keep the screen busy? like playing a video or let's say keep moving the cursor?@RussianNeuroMancersaid:Reporter, please comment to question raised by DK.
Sorry for the late response!
> To be sure, the command line option you are using is "i915.enable_psr=1" right ?
Correct, as you can see in dmesg boot option is "i915.enable_psr=1".
> When do you start seeing the flip time outs? login screen? or are you running any tests?
In my case there is no login screen, because autologin is enabled in Gnome settings. I run test described in item 2: https://bugs.freedesktop.org/show_bug.cgi?id=104573#c12
> What happens if you keep the screen busy? like playing a video or let's say keep moving the cursor?
Can't tell for sure, because I wasn't able to use Wayland session long enough due to issues with Gnome's integrated onscreen keyboard, and lack of other Wayland-compatible onscreen keyboards. As far I remember issue does not happen, but maybe because I didn't test long enough.Can you please try with latest drm-tip ? https://cgit.freedesktop.org/drm-tip
@dpandiyasaid:(In reply to Lakshmi from comment 9)
Dhinakaran, any advice on this?
I am not sure what is going on with BDW, somebody needs to debug. The logs attached here are going to be useful when that happens.
My advice is to change the priority to lowest as the timeouts do not happen with default boot options and the kernel prints a warning when PSR is enabled via the module parameter.
[ 1.824400] Setting dangerous option enable_psr - tainting kernel@RussianNeuroMancer, Can you please verify the issue with latest drm-tip(https://cgit.freedesktop.org/drm-tip) and let me know the behavior?
Hi @RussianNeuroMancer , Did you get a chance to verify the issue with latest drm-tip with tablet for which you are waiting?
@skarana1 turns out that not only port is broken, but possibly motherboard need replacement too. I still aviating answer from service company on motherboard cost, so I can not verify this issue yet. Meanwhile, please look into #347 (closed) as this issue is clearly reproducible, I also have device from #347 (closed) on hands and can help with debugging now, if it will be necessary.
Hi @RussianNeuroMancer, Did you receive your device which needs to be tested?Can you pls verify the issue with latest drm-tip ASAP??
@skarana1 I contacted service company two days ago, they still don't have information about board replacement. Could you please look into this report?
@RussianNeuroMancer Have you received your device yet? Can you please verify the issue with the latest drm-tip asap.
@banns I contacted them once again today and they said that replacement board will be too costly, so I can not verify this issue anymore.
@banns please look into #347 (closed)
Thank you for confirming. Closing this issue as this issue cannot be verified.
@RussianNeuroMancer #347 (closed) will be considered as a separate bug and looked into.
