bugzilla@xxxxxxxxxx composed on 2016-05-22 01:30 (UTC):
https://bugzilla.redhat.com/show_bug.cgi?id=1338076
--- Comment #8 from Peter Gückel <pgueckel@xxxxxxxxx> ---
As I had indicated, I had also followed Adam Williamson's suggestion (after I
had already opened this bug) and reported the same bug on freedesktop as an
xorg/Intel driver bug. This afternoon, Chris Wilson closed the bug with the
resolution 'NOTOURBUG' and the comment "nomodeset disables the i915.ko module.
Don't set it."
That means that nomodeset should not be in the grub kernel boot line and, as we
have seen above, removing it from the boot line causes a kernel crash.
Nomodeset has three primary purposes:
1-workaround for Anaconda, which can't always work with all hardware. It
causes fallback to a low-performance generic Xorg video driver, good only to
make X work at all when something is broken.
2-required kernel cmdline parameter for old, little-used hardware for which
there is no KMS mode driver support for Xorg.
3-troubleshooting tool, for collecting logs and reconfiguring when crashes or
other problems prevent operation without it.
Only in case 2 should it be included in a normal Grub menu. Unfortunately,
when needed for case 1, it typically remains included in in Grub
configuration post-installation, which causes grief for those who aren't
aware of its nature and need for removal as a part of installation cleanup.
Anaconda simply doesn't have the sophistication to do that kind of cleanup.
With the hardware of this bug's case, not removing it is fortunate, because
of the brokenness that prevents operation at all (except possibly via remote
login, or possibly booting to multi-user.target or lower) without it.
--
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/
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