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2f4230fad9
Handle console remapping in fbcon in fb_switch_output(). Vga-switcheroo invokes this functionality before switching physical outputs to a new graphics device. Open-coding fbcon state in vga-switcheroo exposed fbdev implementation details. Vga-switcheroo is used for switching physical outputs among graphics hardware. This functionality is only supported by DRM drivers. A later update will further move fb_switch_output() into DRM's fbdev emulation; thus fully decoupling vga-switcheroo from fbdev. v3: - remove Kconfig dependency related to fbcon (Geert) v2: - use '#if defined' (Helge) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Helge Deller <deller@gmx.de>
15 lines
499 B
Plaintext
15 lines
499 B
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config VGA_SWITCHEROO
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bool "Laptop Hybrid Graphics - GPU switching support"
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depends on X86
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depends on ACPI
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depends on PCI
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depends on FB=y
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select VGA_ARB
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help
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Many laptops released in 2008/9/10 have two GPUs with a multiplexer
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to switch between them. This adds support for dynamic switching when
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X isn't running and delayed switching until the next logoff. This
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feature is called hybrid graphics, ATI PowerXpress, and Nvidia
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HybridPower.
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