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bd09098198
More closely follow common style as described on https://man7.org/linux/man-pages/man7/man-pages.7.html Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Part-of: <https://gitlab.freedesktop.org/xorg/driver/xf86-video-fbdev/-/merge_requests/11>
78 lines
2.3 KiB
Groff
78 lines
2.3 KiB
Groff
.\" shorthand for double quote that works everywhere.
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.ds q \N'34'
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.TH FBDEV __drivermansuffix__ __vendorversion__
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.SH NAME
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fbdev \- video driver for framebuffer device
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.SH SYNOPSIS
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.nf
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.B "Section \*qDevice\*q"
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.BI " Identifier \*q" devname \*q
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.B " Driver \*qfbdev\*q"
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.BI " BusID \*qpci:" bus : dev : func \*q
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\ \ ...
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.B EndSection
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.fi
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.SH DESCRIPTION
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.B fbdev
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is an
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.B __xservername__
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driver for framebuffer devices.
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This is a non-accelerated driver,
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the following framebuffer depths are supported: 8, 15, 16, 24.
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All visual types are supported for depth 8,
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and TrueColor visual is supported for the other depths.
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Multi-head configurations are supported.
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.SH SUPPORTED HARDWARE
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The
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.B fbdev
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driver supports all hardware where a framebuffer driver is available.
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fbdev uses the os-specific submodule
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.BR fbdevhw (__drivermansuffix__)
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to talk to the kernel device driver.
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Currently a fbdevhw module is available for Linux.
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.SH CONFIGURATION DETAILS
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Please refer to
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.BR __xconfigfile__ (__filemansuffix__)
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for general configuration details.
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This section only covers configuration details specific to this driver.
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.PP
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For this driver it is not required to specify modes
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in the screen section of the config file.
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The
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.B fbdev
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driver can pick up the currently used video mode from the framebuffer
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driver and will use it if there are no video modes configured.
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.PP
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For PCI boards you might have to add a BusID line to the Device section.
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See above for a sample line.
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.PP
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The following driver
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.B Options
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are supported:
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.TP
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.BI "Option \*qfbdev\*q \*q" string \*q
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The framebuffer device to use.
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Default: /dev/fb0.
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.TP
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.BI "Option \*qShadowFB\*q \*q" boolean \*q
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Enable or disable use of the shadow framebuffer layer.
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Mandatory for 24bpp framebuffers on newer servers.
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Default: on.
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.TP
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.BI "Option \*qRotate\*q \*q" string \*q
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Enable rotation of the display.
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The supported values are "CW" (clockwise, 90 degrees),
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"UD" (upside down, 180 degrees)
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and "CCW" (counter clockwise, 270 degrees).
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Implies use of the shadow framebuffer layer.
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Disabled for 24bpp framebuffers.
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Default: off.
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.SH "SEE ALSO"
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.BR __xservername__ (__appmansuffix__),
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.BR __xconfigfile__ (__filemansuffix__),
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.BR Xserver (__appmansuffix__),
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.BR X (__miscmansuffix__),
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.BR fbdevhw (__drivermansuffix__)
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.SH AUTHORS
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Authors include: Gerd Knorr, Michel D\(:anzer, Geert Uytterhoeven
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