It is also possible that with a high dot clock and depth on a large screen there is very little bandwidth left for using the BitBLT engine. If you are having driver-related problems that are not addressed by this document, or if you have found bugs in accelerated functions, you can try contacting the Xorg team the current driver maintainer can be reached at eich freedesktop. Otherwise it has the the same properties as the When the chipset is capable of linear addressing and it has been turned off by default, this option can be used to turn it back on. Like the overlays, the Xvideo extension uses a part of the video memory for a second framebuffer. So if you have a virtual screen size set to x using a x at 8bpp, you use kB for the mode. Hence the server assumes a

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Chips and Technologies 65550 PCI BUS Drivers

Additionally, the ” Screen ” option must appear in the device section. The server will limit the maximum dotclock to a value as specified by the manufacturer. It has the same ID and is identified as a when probed. The driver is capable of driving both a CRT and a flat panel cgips. This serial link allows an LCD screens to be located up to m from the video processor.

Information for Chips and Technologies Users

However the panel size will still be probed. Option “NoAccel” This option will disable the use of any accelerated functions. So for the various Chips and Technologies chips the maximum specifications are.


The exception is for depths pvi 1 or 4bpp where linear addressing is turned off by default. For x chipsets the server assumes that the TFT bus width is 24bits. One the overall maximum, and another due to the available memory bandwidth of the chip. Modeline “x 8bpp” This option forces the server to assume that there are 8 significant bits.

The ” FixPanelSize ” can be used to force the modeline values into the panel size registers. For this reason it is recommended to use one of the programs that automatically generate xorg. If you use the ” overlay ” option, then there are actually two framebuffers in the video memory.

Typically this is probed correctly, but if you believe it to be mis-probed, this option might help. So if you have a techhologies screen size set to x using a x at 8bpp, you use kB for the mode. Some users prefer to use clocks that are defined by their BIOS. Typically this will give you some or all of the clocks However there is no reliable way of probing the memory clock used in these chipsets, and so a conservative limit must be taken for the dotclock limit.

Which results in the x mode only expanded to x WW Memory bandwidth requirements exceeded by dual-channel WW mode. It also reduces the effect of cursor flashing during graphics operations.

In this case pcu driver divides the video processors dotclock limitation by the number of bytes per pixel, so that the limitations for the various colour depths are. Work is underway to fix this. However careful use of this option might boost performance.

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Information for Chips and Technologies Users

The cjips consumes memory bandwidth, so that the maximum dotclock will be similar to a 24bpp mode. There is the limit of the maximum dotclock the video processor can handle, and there is another limitation of the available memory bandwidth.

Legal values for this key are depth dependent. But assuming your memory clock is programmed to these maximum values the various maximum dot clocks for the chips are. With the release of XFree86 version 4. This is a debugging option and general users have no need of it.

There is no facility in the current Xservers to specify these values, and so the server attempts to read the panel size from the chip.

When the size of the mode used is less than the panel size, the default behaviour of the server is to align the left hand edge of the display with the technoloiges hand edge of the screen.

Try this if the cursor seems to have problems. We recommend that you try and pick a mode that is similar to a standard VESA mode.