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7ef91dcba1
drm_crtc_helper_funcs::atomic_disable can be called even when the CRTC is
still enabled. This can occur when the mode changes or the CRTC is set as
inactive.
In the case where the CRTC is being set as inactive we only want to
blank the screen. The Screen Target should remain intact as long as the
mode has not changed and CRTC is enabled.
This fixes a bug with GDM where locking the screen results in a permanent
black screen because the Screen Target is no longer defined.
Fixes: 7b0062036c ("drm/vmwgfx: Implement virtual crc generation")
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Reviewed-by: Martin Krastev <martin.krastev@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240531203358.26677-1-ian.forbes@broadcom.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.