diff options
Diffstat (limited to 'man')
| -rw-r--r-- | man/i810.man | 80 |
1 files changed, 71 insertions, 9 deletions
diff --git a/man/i810.man b/man/i810.man index b10e6421..33246e96 100644 --- a/man/i810.man +++ b/man/i810.man @@ -1,4 +1,4 @@ -.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i810.man,v 1.3 2003/02/17 19:19:02 dawes Exp $ +.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i810.man,v 1.5 2003/10/18 02:27:07 dawes Exp $ .\" shorthand for double quote that works everywhere. .ds q \N'34' .TH I810 __drivermansuffix__ __vendorversion__ @@ -16,9 +16,12 @@ i810 \- Intel 8xx integrated graphics chipsets .B i810 is an XFree86 driver for Intel integrated graphics chipsets. The driver supports depths 8, 15, 16 and 24. All visual types are -supported in depth 8, other depths only support TrueColor. The driver -supports hardware accelerated 3D via the Direct Rendering Infrastructure (DRI), -but only in depth 16 for the i810/i815 and depths 16 and 24 for later chipsets. +supported in depth 8. For the i810/i815 other depths support the +TrueColor and DirectColor visuals. For the 830M and later, only the +TrueColor visual is supported for depths greater than 8. The driver +supports hardware accelerated 3D via the Direct Rendering Infrastructure +(DRI), but only in depth 16 for the i810/i815 and depths 16 and 24 for +the 830M and later. .SH SUPPORTED HARDWARE .B i810 supports the i810, i810-DC100, i810e, i815, 830M, 845G, 852GM, 855GM, @@ -30,7 +33,16 @@ details. This section only covers configuration details specific to this driver. .PP The Intel 8xx family of integrated graphics chipsets has a unified memory -architecture and uses system memory for video ram. By default 8 Megabytes +architecture and uses system memory for video ram. For the i810 and +i815 familiy of chipset, operating system support for allocating system +memory for video use is required in order to use this driver. For the +830M and later, this is required in order for the driver to use more +video ram than has been pre-allocated at boot time by the BIOS. This +is usually achieved with an "agpgart" or "agp" kernel driver. Linux, +and recent versions of FreeBSD, OpenBSD and NetBSD have such kernel +drivers available. +.PP +By default 8 Megabytes of system memory are used for graphics. For the 830M and later, the default is 8 Megabytes when DRI is not enabled and 32 Megabytes with DRI is enabled. This amount may be changed with the @@ -38,8 +50,18 @@ DRI is enabled. This amount may be changed with the entry in the config file .B "Device" section. It may be set to any reasonable value up to 64MB for older -chipsets or 128MB for newer chipets. Note that increasing this value -will reduce the amount of system memory available for other applications. +chipsets or 128MB for newer chipets. It is advisable to check the XFree86 +log file to check if any features have been disabled because of insufficient +video memory. In particular, DRI support or tiling mode may be disabled +with insufficient video memory. Either of these being disabled will +reduce performance for 3D applications. Note however, that increasing +this value too much will reduce the amount of system memory available +for other applications. +.PP +The driver makes use of the video BIOS to program video modes for the 830M +and later. This limits the video modes that can be used to those provided +by the video BIOS, and to those that will fit into the amount of video memory +that the video BIOS is aware of. .PP The following driver .B Options @@ -50,7 +72,8 @@ Disable or enable acceleration. Default: acceleration is enabled. .TP .BI "Option \*qSWCursor\*q \*q" boolean \*q Disable or enable software cursor. Default: software cursor is disable -and a hardware cursor is used. +and a hardware cursor is used for configurations where the hardware cursor +is available. .TP .BI "Option \*qColorKey\*q \*q" integer \*q This sets the default pixel value for the YUV video overlay key. @@ -61,8 +84,47 @@ This allows the user to change the amount of graphics memory used for 2D acceleration and video. Decreasing this amount leaves more for 3D textures. Increasing it can improve 2D performance at the expense of 3D performance. -Default: 256 to 768 depending on the resolution and depth. +Default: depends on the resolution, depth, and available video memory. The +driver attempts to allocate at least enough to hold two DVD-sized YUV buffers +by default. The default used for a specific configuration can be found +by examining the XFree86 log file. +.TP +.BI "Option \*qDRI\*q \*q" boolean \*q +Disable or enable DRI support. +Default: DRI is enabled for configurations where it is supported. +.PP +The following driver +.B Options +are supported for the i810 and i815 chipsets: +.TP +.BI "Option \*qDDC\*q \*q" boolean \*q +Disable or enable DDC support. +Default: enabled. +.TP +.BI "Option \*qDac6Bit\*q \*q" boolean \*q +Enable or disable 6-bits per RGB for 8-bit modes. +Default: 8-bits per RGB for 8-bit modes. +.TP +.BI "Option \*qXvMCSurfaces\*q \*q" integer \*q +This option enables XvMC. The integer parameter specifies the number of +surfaces to use. Valid values are 6 and 7. +Default: XvMC is disabled. + +.PP +The following driver +.B Options +are supported for the 830M and later chipsets: +.TP +.BI "Option \*qVideoKey\*q \*q" integer \*q +This is the same as the +.B \*qColorKey\*q +option described above. It is provided for compatibility with most +other drivers. +.TP +.BI "Option \*qXVideo\*q \*q" boolean \*q +Disable or enable XVideo support. +Default: XVideo is enabled for configurations where it is supported. .SH "SEE ALSO" |