Display might be corrupted!!! This option, selects an 18 bit TFT bus. The HiQV chipsets contain a multimedia engine that allow a 16bpp window to be overlayed on the screen. It also includes a fully programmable dot clock and supports all types of flat panels. If you find you truly can’t achieve the mode you are after with the default clock limitations, look at the options ” DacSpeed ” and ” SetMClk “. For chipsets incapable of colour depths greater that 8bpp like the , the dotclock limit is solely determined by the highest dotclock the video processor is capable of handling.

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The programmable clock makes this option obsolete and so it’s use isn’t recommended. Note that increasing the memory clock also has its own problems as described above. For this technoloties the default behaviour of the server is to use the panel timings already installed in the chip. Dual-head display has two effects on the modelines.

Note that it is overridden by the ” SWcursor ” option. You can avoid this by either using the ” NoStretch ” option or removing the HWcursor ” option.

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The clocks in the x series of chips are internally divided by 2 for 16bpp technologiea 3 for 24bpp, allowing one modeline to be used at all depths. Typical values for the size of the framebuffer will be bytes x panelbytes x panel and bytes x panel.

There is the limit of the maximum dotclock the video processor can handle, and there is another limitation of the available memory bandwidth. However this version of the Chips technologie Technologies driver has many new features and bug fixes that might make users prefer to use this version. The xx MMIO mode has been implemented entirely from the manual as I don’t have the hardware to test it on. Gamma correction at all depths tfchnologies DirectColor visuals for depths of 15 or greater with the HiQV series of chipsets.


These options can be used to force a particular clock index to be used. Please read the section below about dual-head display.

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This sets the default pixel value for the YUV video overlay key. If this is not true then the screen will appear to have a reddish tint. This sets the physical memory base address of the linear framebuffer.

Some users prefer to use clocks that are defined by their BIOS. For other screen drawing related problems, try the ” NoAccel ” or one of the XAA acceleration options discussed above. If this is a problem, a work around is to remove the ” HWcursor ” option.

Try reducing the amount of memory consumed by the mode. If you are driving the video memory too fast too high abd MemClk you’ll get pixel corruption as the data actually written to the video memory is corrupted by driving the memory too fast.

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.

The user can force the panel timings to be recalculated from the modeline with this option. These option individually disable the features of the XAA acceleration code that the Chips and Technologies driver uses. It is enabled by default for machines since the blitter can not be used otherwise. Tecjnologies believes that the 8bpp framebuffer is overlayed on the 16bpp framebuffer. With the release of XFree86 version 4.


This might make certain modes impossible to obtain with a reasonable refresh rate. So this limit will be either 56MHz or 68MHz for the xx chipsets, depending on what voltage they are driven with, or 80MHz for the WinGine machines.

Display Adapters – Chips And Technologies – Chips And Technologies 65555 Computer Driver Updates

Otherwise it has the the same properties as the When the size of the mode used is less than the panel size, the default behaviour of the server is to stretch the mode in an attempt to fill the screen. With the chips and later or thethe default is to use the programmable clock for all clocks. This is a driver limitation that might be relaxed in the future.

If you have a problem with the acceleration and these options will allow you to isolation the problem. Additionally, the ” Screen ” option must appear in the device section. For LCD screens, the lowest clock that gives acceptable contrast and flicker is usually the best one.