Bug 1218393

Summary:	Weird screen blanking (power mgmt?) issue
Product:	[openSUSE] openSUSE Tumbleweed	Reporter:	robert spitzenpfeil <rs.opensuse>
Component:	X.Org	Assignee:	Gfx Bugs <gfx-bugs>
Status:	IN_PROGRESS ---	QA Contact:	Gfx Bugs <gfx-bugs>
Severity:	Normal
Priority:	P3 - Medium
Version:	Current
Target Milestone:	---
Hardware:	x86-64
OS:	openSUSE Tumbleweed
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description robert spitzenpfeil 2023-12-25 14:10:48 UTC

My screen blanks after screen power mgmt kicks in - as expected. Unfortunately the timer doesn't seem to reset. As long as I move the mouse (even after switching to a console) the screen stays on, once any screen update stops, it goes dark.

Currently I  to run 'xsnow' !! to keep the screen updating, so it doesn't go dark all the time.

This is not fun :-(

Where to look?

CPU: i7-7700T
Graphics: HD 630


P.S.:

https://forums.opensuse.org/t/internal-lcd-of-laptop-turning-off-comes-back-on-while-mouse-is-moving-changes-on-screen-happen/170847


--

# VERSION="20231222"
ID="opensuse-tumbleweed"

Comment 1 robert spitzenpfeil 2023-12-25 14:17:27 UTC

It just hit me again after setting the screen power mgmt timeout to 1 minute to deliberately trigger it. Once screen updates stop it goes dark all the time.

After logging off (KDE) it reverted to normal.

Unfortunately this is not highly reproducible, but I would really like to avoid buying a new machine.

Comment 2 robert spitzenpfeil 2023-12-30 15:50:15 UTC

Instead of running "xsnow" (cpu hog), it is sufficient to run the following

"xclock -analog -update 0.13"

Increasing the update interval to 0.14 and larger, the problem reoccurs.

Interesting: the xclock window doesn't have to be on the laptop's screen, it can be anywhere and it still helps.

Comment 3 Stefan Dirsch 2024-01-06 20:27:30 UTC

Thanks for reporting. Not so easy to debug. At least you have a workaround ...

Comment 4 Stefan Dirsch 2024-05-21 14:49:07 UTC

Could this be retested with current TW, please?

Comment 5 robert spitzenpfeil 2024-05-21 16:47:53 UTC

I'll check.

Comment 6 robert spitzenpfeil 2024-05-27 17:06:00 UTC

It's still there.

I've had a couple of days "peace", but now it's back. It may very well be a hardware defect.

I'm getting a lot of these log entries.

---
May 27 18:27:14 linux-1p8x kernel: i915 0000:00:02.0: [drm] HPD interrupt storm detected on connector eDP-1: switching from hotplug detection to polling
May 27 19:02:47 linux-1p8x kernel: i915 0000:00:02.0: [drm] HPD interrupt storm detected on connector eDP-1: switching from hotplug detection to polling
---

Moving the display hinge or shaking the laptop etc. doesn't change anything, nor does it trigger the issue.

Comment 7 Stefan Dirsch 2024-05-27 19:47:14 UTC

Ok. Thanks for the feedback!