Like the overlays, the Xvideo extension uses a part of the video memory for a second framebuffer. For this reason, the maximum colour depth and resolution that can be supported in a dual channel mode will be reduced compared to a single display channel mode. Hence the server assumes a Org releases later than 6. Many potential programmable clock register setting are unstable. Modeline “x 8bpp”

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Some machines that are known to need these options include. Linear addressing is not supported for this card in the driver.

Chips and Technologies

If this option is removed form xorg. Org releases later than 6. None of these are currently supported within the driver itself, so many cards will only have limited support. Also, a photo of the machine itself for anyone who’s curious! In this case the driver divides the video processors dotclock limitation by the number of bytes per pixel, so that the limitations for the various colour depths are.

By default it is assumed that there are 6 significant bits in the RGB representation of the colours in 4bpp and above. 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 “.

The whole thing is divided by the bytes per pixel, plus an extra byte if you are using a DSTN. Most of the Chips and Technologies chipsets are supported by this driver to some degree.

Do you have any means of determining how much video memory your machine 655555 However luckily there cchips many different clock register setting that can give the same or very similar clocks. You do not have the required permissions to view the files attached to this post.


Information for Chips and Technologies Users

Note that this option only has an effect on TFT screens. Kinda funny, that’s apparently a relatively early VGA clone chipset yet the machine itself dates to ’96 or so Using this option the user can override the maximum dot-clock and specify any value they prefer.

Using this option the mode can be centered in the screen. As use of the HiQV chipsets multimedia engine was supposed to be for things like zoomed video overlays, its use was supposed to be chups and so most machines have their memory clock set to a value that is too high for use with the ” Overlay ” option.

This can be found from the log file of a working single-head installation. There is the limit of the maximum dotclock the video processor can handle, and there is another limitation of the available memory bandwidth.

If you get pixel error with this option try using the ” SetMClk ” option to slow the memory clock. Note that increasing the memory clock also has its own problems as described above.

The total memory requirements in this mode of operation is therefore similar to a 65555 mode. That is from 0 to for 8bit depth, 0 to 32, for 15bit depth, etc. I’ve been trying to restore and I’m having a difficult time with finding video drivers for Win98 in particular – Most of Windows’ built-in CHIPS drivers actually cause horrible video corruption the second the system tries to display anything cyips isn’t text mode, the Windows bootsplash or xx16 colors though the GPU can apparently do xx fine.


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This effectively means that there are two limits on the dotclock. Modeline “x 8bpp” Also check the BIOS settings. The Xorg X server, dhips the user to do damage to their hardware with software with old monitors which may not tolerate bad display settings.

This can be done by chipps an external frame buffer, or incorporating the framebuffer at the top of video ram depending on the particular implementation. On a cold-booted system this might be the appropriate value to use at cuips text console see the ” TextClockFreq ” optionas many flat panels will need a dot clock different than the default to synchronise.

This allows the user to select a different clock for the server to use when returning to the text console.

Chips and Technologies

This is a problem with the video BIOS not knowing about all the funny modes that might be selected. It is possible to force the server chkps identify a particular chip with this option. Note that for the this is required as the base address can’t be correctly probed.