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Re: clean Bullseye install, display disappears after "loading initial ramdisk"

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The Wanderer composed on 2021-11-05 18:25 (UTC-0400):

> There's a specific kernel-command-line parameter (on top of 'nomodeset')
> for disabling KMS with certain types of Intel integrated GPU; I don't
> remember it off the top of my head, but I believe it involves the string
> 'i915'.
											
Nomodeset disables KMS for all graphics hardware. The moniker i915 for the
kernel's Intel support module is derived from a specific Intel graphics version
from around 17 or so years ago. So, e.g. i915.modeset=0 limits disabling of KMS to
Intel IGPs, like amdgpu.modeset=0 disables only for AMD GPUs, and
nouveau.modeset=0 disables KMS only for NVidia GPUs. KMS either is or isn't
enabled. There's no in between. Disabling makes X performance dismal, except when
using non-FOSS drivers that don't depend on KMS.

> Disabling kernel modesetting isn't the greatest thing for long-term use,
> but if it can let you boot, you may be able to use that as a basis for
> figuring out what other solutions may be possible.
											
Nomodeset is primarily intended to be a troubleshooting parameter. KMS, which
nomodeset disables, is an absolute requirement for competent graphics performance
from al FOSS drivers supporting AMD, Intel and NVidia GPUs, among others.
-- 
Evolution as taught in public schools is, like religion,
	based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata

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clean Bullseye install, display disappears after "loading initial ramdisk" Mark Copper <mlcopper@gmail.com> - 2021-11-05 23:20 +0100
  Re: clean Bullseye install, display disappears after "loading initial  ramdisk" The Wanderer <wanderer@fastmail.fm> - 2021-11-05 23:30 +0100
    Re: clean Bullseye install, display disappears after "loading initial  ramdisk" Felix Miata <mrmazda@earthlink.net> - 2021-11-06 00:10 +0100
      Re: clean Bullseye install, display disappears after "loading initial  ramdisk" The Wanderer <wanderer@fastmail.fm> - 2021-11-06 00:20 +0100
        Re: clean Bullseye install, display disappears after "loading initial ramdisk" Mark Copper <mcopper@straitcity.com> - 2021-11-06 04:10 +0100
    Re: clean Bullseye install, display disappears after "loading initial ramdisk" Mark Copper <mcopper@straitcity.com> - 2021-11-06 18:30 +0100

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