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DescriptionOlivier Fourdan
2021-12-07 09:41:23 UTC
Created attachment 1845040[details]
Xorg.log
Description of problem:
Since the fix for bug 1988922 (closed as 2000921), the fbdev driver fails to probe the device and therefore cannot be used.
This is somehow expected considering that the fix for bug 1988922 removed the old device Probe() call from xf86CallDriverProbe() in the xserver and the fbdev driver doesn't implement a platformProbe()
Yet, fbdev was useful as a fallback driver when a native DRM driver is not available (e.g. with the newest, not yet supported hardware).
An alternative would be to use simpledrm but CONFIG_DRM_SIMPLEDRM is not yet enabled in our kernels so we're left without any fallback if the graphics hardware is not supported.
Version-Release number of selected component (if applicable):
xorg-x11-dev-fbdev-0.5.0-10
How reproducible:
Always
Steps to Reproduce:
1. Boot system with nomodeset
Actual results:
A graphical login screen on Xorg using fbdev driver as fallback
Expected results:
A black screen
Additional info:
This bug is to mostly to raise awareness of the regression and keep a record of whatever decision we make.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (new packages: xorg-x11-server), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2022:2414