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Subject : Re: TW: boot problem kernel 5.18.9-2 and higher
Message-ID : <4923df5a-8564-c42d-61f7-5d654e994030@earthlink.net>
Date & Time: Tue, 16 Aug 2022 04:33:27 -0400
[FM] == Felix Miata has written:
FM> Masaru Nomiya composed on 2022-08-16 08:10 (UTC+0900):
[...]
MN> > You may be wondering why the problem started with Tumbleweed.
MN> > Since GPU (=Intel Corporation RocketLake-S GT1) is so new that the
MN> > corresponding kernel module has only recently been developed, so the
MN> > intel driver autoloading did not occur until then.
FM> 18 months isn't new in the PC world. Rocket Lake is more than 18
FM> months old, at least one full generation prior to latest. Mine is
FM> one of the newer RKLs, yet six quarters old:
FM> https://ark.intel.com/content/www/us/en/ark/products/212270/intel-core-i5114...
FM> https://lists.opensuse.org/archives/list/users@lists.opensuse.org/message/QD...
Yours is Intel RocketLake-S GT1 [UHD Graphics 730].
But, Martin's is Intel RocketLake-S GT1 [UHD Graphics 750].
As for UHD Graphics 750, there are some trouble reports about i985 module,
and this is one of them;
https://gist.github.com/Postrediori/556706b28aff3b831d9e41acb47418c5
Based on the status of the trouble reports, I think that the i985
module was extended to support UHD Graphics 750 from 5.18.9-2.
MN> > To avoid this problem, replace the nomodeset in the kernel parameter
MN> > with i915.modeset=0.
FM> A normal average desktop PC with PCIe slots and graphics outputs
FM> supported by a CPU containing an IGP by default has a BIOS option
FM> set to prefer enabling only the add-in GPU if present. It
FM> shouldn't be necessary to disable the IGP in software, e.g using
FM> i915.modeset=0, but that doesn't mean disabling in software can't
FM> orshouldn't work. BIOS vary, and many are buggy. Martin's issue
FM> might be affected by updating his UEFI BIOS, or simply making a
FM> change to graphics settings in it.
I thought that the internal GPU could be disabled by installing a
graphic card in the PCI slot, but I found that Martin's model does not
have such function.
I thought it was not possible to disable the GPU in the BIOS since it
is an integrated chip.
FM> I'm guessing we're off the trail here, that i915.modeset=0 isn't
FM> going to work, and that this simpledrm/NVidia combo has a
FM> software bug, or a BIOS bug triggered by that
FM> combination. cf. https://gitlab.freedesktop.org/drm/intel/-/issues/4762
I can't understand what is being said?
When he installed the NVIDIA driver without nomodeset setting and
started it, the Intel and NVIDIA drivers are batting and he got a
black screen.
However, when he added nomodeset as the kernel parameter, the problem
disappeared, which I believe is because the i985 module has been
disabled and only the NVIDIA driver is running.
Therefore, I do not think it is a software bug, but rather a problem
with the kernel parameter settings.
If it is a bug in softeware, it should not be possible to boot without
any problem.
Regards.
---
┏━━┓彡 Masaru Nomiya mail-to: nomiya @ galaxy.dti.ne.jp
┃\/彡
┗━━┛ "Bill! You married with Computer.
Not with Me!"
"No..., with money."