Arch Linux

Chocopuff

Member

Registered: 2016-10-02

Posts: 26

Screen Flickering, i915 CPU: Intel Core i5-5257U

Hi,

I've been having a lot of screen flickering issues lately. The screen flickers and flashes. I suspect that this is a kernel issue since this happens not only in X, but also in the tty.

What I have tried so far:

Kernels:
Stock 4.8.13
4.4  Current LTS
Custom Compiled Kernel 4.9.1 and 4.9.3

Kernel Boot parameters

 i915.enable_psr=0 i915.enable_rc6=0 

xf86-video-intel
Removed the xf86-video-intel driver and used KMS.

However, none of that fixed it. I'm not sure what else to try next. Suggestions?

Are there any logs that I should be posting? Not sure.

Starfish

Member

From: Germany

Registered: 2015-10-21

Posts: 134

Re: Screen Flickering, i915 CPU: Intel Core i5-5257U

Are there any logs that I should be posting?

Indeed:

dmesg
cat /var/log/Xorg.0.log
journalctl -xe

---

"Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the present." - Master Oogway

Chocopuff

Member

Registered: 2016-10-02

Posts: 26

Re: Screen Flickering, i915 CPU: Intel Core i5-5257U

dmesg: https://ptpb.pw/-ioV
Xorg.0.log : https://ptpb.pw/xeax
journalctl -xe: https://ptpb.pw/e3yW

Thanks!

Chocopuff

Member

Registered: 2016-10-02

Posts: 26

Re: Screen Flickering, i915 CPU: Intel Core i5-5257U

UPDATE

I think I've noticed something interesting. I think it might have to do with my internet connection at home. When I connect at school, I don't remember ever having problems. When I tried to block network connections via

 # rfkill block all 

, the screen stops flickering. Might be related. I use NetworkManager. Might be my home network causing this. Don't think it makes sense though.

dsana123

Member

Registered: 2013-08-27

Posts: 19

Re: Screen Flickering, i915 CPU: Intel Core i5-5257U

I could be totally off the mark here...

Do you have a Macbook Pro 13' 2015? I always had screen flickering problems on mine which I 'resolved' by moving the home network from 2.4GHz to 5.GHz. I never got to the bottom of the screen flickering problem when using 2.4GHz, but since 5GHz works so well (after disabling wifi power-saving) I never felt the need to figure out what the problem was.

Chocopuff

Member

Registered: 2016-10-02

Posts: 26

Re: Screen Flickering, i915 CPU: Intel Core i5-5257U

Spot on! MacBook Pro 13" (not sure about the year, almost sure 2015).

bullseye. Let me check.

But yeah, switching networks helped. Will try to figure the issue later. Not sure about 2.4Ghz and 5Ghz and that yet.