The amount of ram required for the framebuffer will vary depending on the size of the screen, and will reduce the amount of video ram available to the modes. None of these are currently supported within the driver itself, so many cards will only have limited support. The ct supports dual-head display. The server will limit the maximum dotclock to a value as specified by the manufacturer. The HiQV series of chips doesn’t need to use additional clock cycles to display higher depths, and so the same modeline can be used at all depths, without needing to divide the clocks.
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Chips and Technologies specify that the memory clock used with the multimedia techhnologies running should be lower than that used without. So for the various Chips and Technologies chips the maximum specifications are.
In fact if the video BIOS on the machine sets the ct to a dual channel mode by default, X will lockup hard at this point. So for unexplained problems not addressed above, please try to alter the clock you are using slightly, say in steps of 0. However this version of the Chips and Technologies driver has many new features and bug fixes that might make users prefer to use this version.
This option forces the LCD panel size to be overridden by the modeline display sizes. The four options are for 8bpp or less, 16, 24 or 32bpp LCD panel clocks, where the options above set the clocks to 65MHz.
It might affect some other SVR4 operating systems as well. This option forces the second display to take a particular amount of memory. In this case enough memory needs to be left for the largest unscaled technologkes window that will be displayed.
The formula to determine the maximum znd dotclock on the HiQV series of chips is. This will prevent the use of a mode that is a different size than the panel. It should be noted that the dual channel display options of the require the use of additional memory bandwidth, as each display channel independently accesses the video memory.
Chips and Technologies Asiliant Technologies 69030 DualView Free Driver Download (Official)
If it is a standard mode and frequency that your screen should be able to handle, try to find different timings for a similar mode and frequency combination. Hence the server assumes a It also reduces the effect of cursor flashing during graphics operations. In addition to this many graphics operations are speeded up using a ” pixmap cache “. If it is a non-standard mode, maybe you need to tweak the timings a bit.
This can be done by using an external frame buffer, or incorporating the framebuffer at the top of video ram depending on the particular implementation. Option “NoAccel” This option will disable the use of any accelerated functions. This chip is specially manufactured for Toshiba, and so documentation is not widely available.
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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 left hand edge of the screen.
As mentioned before, try disabling this option. With the release of XFree86 version 4. Try this if the cursor seems to have problems. If the user has used the ” UseModeline ” or ” FixPanelSize ” options the panel timings are derived chipz the mode, which can be different than the panel size. None of these are currently supported within the driver itself, so many cards will only have limited support.
However to use the dual-head support is slightly more complex. This shouldn’t affect higher depths, and is fixable with a switch to the virtual console and back.
When constructing a modeline for use with the Chips and Technologies driver you’ll needed to considered several points. So the value actually used for the memory clock might be significantly less than this maximum value. This option might also be needed to reduce the speed of the memory clock with the ” Overlay ” option. The Xorg X server, allows the user to do damage to their hardware with software with old monitors which may not tolerate bad display settings.
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 technologirs limit. This sets the default pixel value for the YUV video overlay key.
The Xserver assumes that the framebuffer, if used, will be at the top of video ram.