Hello,
Sorry for late reply.
I got some time.
In the Message;
Subject : Re: TW: boot problem kernel 5.18.9-2 and higher
Message-ID : <2c4ccf29-6724-23ee-e934-fb1cbca535b5@earthlink.net>
Date & Time: Tue, 16 Aug 2022 19:00:43 -0400
[FM] == Felix Miata has written:
FM> Masaru Nomiya composed on 2022-08-16 19:27 (UTC+0900):
MN> > Yours is Intel RocketLake-S GT1 [UHD Graphics 730].
MN> > But, Martin's is Intel RocketLake-S GT1 [UHD Graphics 750].
FM> A distinction without a difference for the current
FM> context. Officially our CPUs were launched at the same time,
FM> while the higher priced models, including Martin's as usual, were
FM> first to actually become available.
FM> Martin's:
FM> https://www.intel.com/content/www/us/en/products/sku/212279/intel-core-i7117...
FM> top CPU price tiers: i7 (i9):
FM> i7-11700 launched Q1'21
FM> RocketLake-S GT1 [UHD Graphics 750]; device ID 8086:4c8a
FM> FP32 ALUs : EUs : Subslices 256:32:4 (for faster/pricier products)
FM> FP32: https://en.wikipedia.org/wiki/Single-precision_floating-point_format
FM> Mine:
FM> https://ark.intel.com/content/www/us/en/ark/products/212270/intel-core-i5114...
FM> lesser CPU price tier: i5:
FM> i5-11400 launched Q1'21
FM> RocketLake-S GT1 [UHD Graphics 730]; device ID 8086:4c8b
FM> FP32 ALUs : EUs : Subslices 192:24:3 (75% of 4c8a, for slower/cheaper products)
FM> 730 has simpler specs and thus (theoretically at least) is cheaper. It wouldn't
FM> surprise me if they were all the same, with the lower tier(s) having the other 25%
FM> of FP32s disabled.
I can understand your doubts.
My doubts are;
1. is it possible to reach the login screen without the parameter
nvidia-drm.modeset=1?
2. even if I can reach the login screen, can I install NVIDIA's driver
without the parameter nomodeset?
In my Tumbleweed environment, it is impossible to install the NVIDIA
driver without the nomodeset parameter, and even if it is successfully
installed, it hangs with a black screen if I try to boot without the
nvidia-drm.modeset=1 parameter.
I tried, although the kernel are different (5.18.9-2, 5.19.1-1).
The results are as follows;
1. Without the parameter nvidia-drm.modeset=1, I cannot reach the
login screen, but I can enter terminal mode.
2. the parameter rd.driver.blacklist=nouveau instead of nomodeset
installs the NVIDIA driver without any problem.
Many Web have shown that even if there are two GPUs (Intel and
NVIDIA), as long as NVIDIA is recognized, the driver can be installed
and no problem will occur.
Based on the above, I believe that the black screen after rebooting
after installing the NVIDIA driver is the key to resolving our
suspicions.
What is important in this regard is the fact that the parameter
nomodeset was not set until kernel 5.18-9-2.
Then, it is natural to think that the Intel i915 module was improved
in kernel 5.18.9-2, and Intel GPU, which reject nomodeset setteing,
are also supported, which caused the conflict between drivers, isn't
it?
I suppose this is the reason why the nomodeset parameter has to be set,
since kernel 5.18.9-2.
Regards.
---
┏━━┓彡 Masaru Nomiya mail-to: nomiya @ galaxy.dti.ne.jp
┃\/彡
┗━━┛ "Tim Cook, the C.E.O. of Apple, said earlier this year that he would
not let his nephew join social networks.
Bill Gates banned cellphone until his children were teenagers, and
Melinda Gates wrote that she wished they had waited even longer.
Steve Jobs would not let his young children near iPads."
-- The New York Times --