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schard

Forum Moderator

From: Hannover

Registered: 2016-05-06

Posts: 2,648

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Re: [solved]Graphic artifacts : Intel Iris Xe

Seth was asking whether the angle of the opened lid containing the screen, with respect to the laptops chassis has any effect on the artefacts.
Edit: Jinxed

Last edited by schard (2022-08-22 12:16:55)

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heblah

Member

Registered: 2022-08-17

Posts: 13

Re: [solved]Graphic artifacts : Intel Iris Xe

No, a friend has the same laptop and without any artifact so I think it has any effect

And I was able to use my laptop 2 months without any issue and these artifacts came back like that, using a text editor

Last edited by heblah (2022-08-22 16:41:53)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,634

Re: [solved]Graphic artifacts : Intel Iris Xe

Because the "cable" that connects to the display is probably a flex circuit (https://www.flexiblecircuit.com/) with FFC/FPC (ZIF) connectors (https://www.amphenol-cs.com/connectors/ffc-fpc.html)
Flexing said cable might reveal microcracks in the printed copper traces.  And FFC/FFP connectors work great -- when properly mated.  Us ham-fisted engineers treat our technicians to lunch on occasion to thank them for mating them properly for us.

The collective thought is that you have a cable issue in your laptop that probably is covered by warranty.

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gps1539

Member

From: Los Gatos, CA

Registered: 2013-11-06

Posts: 165

Re: [solved]Graphic artifacts : Intel Iris Xe

I don't see the kernel you're on, but if it is 5.19 then it may be related to an Intel GuC firmware issue described here https://www.phoronix.com/news/GuC-Firmw … Linux-5.19

I had something similar (at least visually) and downgrading to 5.18 fixed the issue.

heblah

Member

Registered: 2022-08-17

Posts: 13

Re: [solved]Graphic artifacts : Intel Iris Xe

I have this probem on lts kernel, 5.18 and 5.19. (event on w10, debian and ubuntu)

It's probably the cable... I've sent an email to the vendor, let's see

Because the "cable" that connects to the display is probably a flex circuit (https://www.flexiblecircuit.com/) with FFC/FPC (ZIF) connectors (https://www.amphenol-cs.com/connectors/ffc-fpc.html)
Flexing said cable might reveal microcracks in the printed copper traces.  And FFC/FFP connectors work great -- when properly mated.  Us ham-fisted engineers treat our technicians to lunch on occasion to thank them for mating them properly for us.

It's exactly this type of cable

Until get information, I think this topic is "solved'

Thank you all