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#1 2021-05-13 09:17:20

Treyarch
Member
From: New Zealand
Registered: 2014-09-23
Posts: 32

HP 840G5 Black Screen upon booting (even with fresh install) [Solved]

Heya everyone,

I've just had this issue recently with my laptop, it's pretty stock standard laptop, the installation media works fine and everything goes as expected, and this laptop has worked fine in the past with no issues, so my guess is a recent update somewhere has regressed something that now makes this laptop not work.

I am unable to drop to any TTYs, I can get to a TTY if I pass the

nomodeset

parameter, but I am unable to start X with it citing a lot of errors, I've tried reinstalling xorg, xinit, and the like, as well as cinnamon. I did manage to get X started as root before deciding to attempt a reinstall (I wanted an encypted volume so this wasn't the only reason I reinstalled but was the motivator)

Does anyone have anything I could try to get this back to a working state it was last week? Or what might have changed update wise or some news I may have missed.

Last edited by Treyarch (2021-05-14 23:56:29)

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#2 2021-05-13 19:02:27

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 14,026

Re: HP 840G5 Black Screen upon booting (even with fresh install) [Solved]

There are quite a few reports that there's breakage in the intel gpu driver with 5.12 kernel, either downgrade that to 5.11 or switch to linux-lts for the time being

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#3 2021-05-14 00:30:47

Treyarch
Member
From: New Zealand
Registered: 2014-09-23
Posts: 32

Re: HP 840G5 Black Screen upon booting (even with fresh install) [Solved]

That makes sense.

I had testing on prior to reinstalling, this install it is stable.

I'll let you know when I get home tonight if lts fixes it. Thanks

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#4 2021-05-14 23:56:11

Treyarch
Member
From: New Zealand
Registered: 2014-09-23
Posts: 32

Re: HP 840G5 Black Screen upon booting (even with fresh install) [Solved]

Cookie for you good buddy, installed linux-firmware (for wifi) and linux-lts and magical.

I can't see any bug tracking from my google-fu is there one for the specific issue?

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#5 2021-05-15 10:51:02

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 14,026

Re: HP 840G5 Black Screen upon booting (even with fresh install) [Solved]

In general there are a lot of reports in https://gitlab.freedesktop.org/drm/intel/-/issues not entirely certain which of them in particular applies to your situation, FWIW there was a backport of a i915 patch in 5.12.2-arch2 but I'm not sure whether that's relevant to a complete blackscreen, as it's more of a flickering fix like mentioned in e.g. https://bbs.archlinux.org/viewtopic.php?id=266091

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#6 2021-05-15 22:36:37

Treyarch
Member
From: New Zealand
Registered: 2014-09-23
Posts: 32

Re: HP 840G5 Black Screen upon booting (even with fresh install) [Solved]

Thanks for those, I'll keep an eye out, I was looking upstream in the Kernel thinking it would be logged there.

Thanks for the advice, I'll just keep both kernels installed but have lts as my default so I'll try it after an update or so smile

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