siliconmotion(4) - Linux man page
Name
siliconmotion - Silicon Motion video driverSynopsis
Section DeviceIdentifier devname
Driver siliconmotion
...
[ Option "optionname" ["optionvalue"]]
EndSection
Description
Supported Hardware
The siliconmotion driver supports PCI and AGP video cards based on the following Silicon Motion chips:- Lynx
- SM910
- LynxE
- SM810
- Lynx3D
- SM820
- LynxEM
- SM710
- LynxEM+
- SM712
- Lynx3DM
- SM720
- Cougar3DR
- SM730
Configuration Details
Please refer to xorg.conf(5x) for general configuration details. This section only covers configuration details specific to this driver. All options names are case and white space insensitive when parsed by the server, for example, "lynxe" and "LynxE" are equivalent.The driver auto-detects the chipset type, but the following ChipSet names may optionally be specified in the config file Device section, and will override the auto-detection:
"lynx", "lynxe", "lynx3d", "lynxem", "lynxem+", "lynx3dm", "cougar3dr".
The following Cursor Options are supported:
- Option HWCursor boolean
- Enable or disable the HW cursor. Default: on.
- Option SWCursor boolean
- Inverse of "HWCursor". Default: off.
The following display Options are supported:
- Option ShadowFB boolean
- Use shadow framebuffer. Default: off.
- Option Rotate CW
- Option Rotate CCW
- Rotate the screen CW - clockwise or CCW - counter clockwise. Uses ShadowFB. Default: no rotation.
- Option VideoKey integer
- Set the video color key. Default: a little off full blue.
- Option ByteSwap boolean
- Turn on byte swapping for capturing using SMI demo board. Default: off.
- Option Interlaced boolean
- Turn on interlaced video capturing. Default: off.
- Option UseBIOS boolean
- Use the BIOS to set the modes. This is used for custom panel timings. Default: on.
- Option ZoomOnLCD boolean
- Allow changing resolution on LCD (Ctrl-Alt-Plus and Ctrl-Alt-Minus). Default: off.
The following video memory Options are supported:
- Option set_mclk integer
- sets the memory clock, where integer is in kHz, and integer <= 100000. Default: probe the memory clock value, and use it at server start.
The following acceleration and graphics engine Options are supported:
- Option NoAccel
- Disable acceleration. Very useful for determining if the driver has problems with drawing and acceleration routines. This is the first option to try if your server runs but you see graphic corruption on the screen. Using it decreases performance, as it uses software emulation for drawing operations the video driver can accelerate with hardware. Default: acceleration is enabled.
- Option fifo_aggressive
- Option fifo_moderate
- Option fifo_conservative
- Option fifo_moderate
- alter the settings for the threshold at which the pixel FIFO takes over the internal memory bus to refill itself. The smaller this threshold, the better the acceleration performance of the card. You may try the fastest setting (fifo_aggressive) and move down if you encounter pixel corruption. The optimal setting will probably depend on dot-clock and on color depth. Note that specifying any of these options will also alter other memory settings which may increase performance, so trying fifo_conservative will in most cases be a slight benefit (this uses the chip defaults). If pixel corruption or transient streaking is observed during drawing operations then removing any fifo options is recommended. Default: none.
The following PCI bus Options are supported:
- Option pci_burst boolean
- will enable PCI burst mode. This should work on all but a few broken PCI chipsets, and will increase performance. Default: off.
- Option pci_retry boolean
- will allow the driver to rely on PCI Retry to program the ViRGE registers. pci_burst must be enabled for this to work. This will increase performance, especially for small fills/blits, because the driver does not have to poll the ViRGE before sending it commands to make sure it is ready. It should work on most recent PCI chipsets. Default: off.
The following additional Options are supported:
- Option ShowCache boolean
- Enable or disable viewing offscreen cache memory. A development debug option. Default: off.
