For 24bpp on TFT screens, the server assumes that a 24bit bus is being used. 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. 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. 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. Hence you will see a line like. This option forces the second display to take a particular amount of memory.
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Many laptops use the programmable clock of the x chips at the console.
This problem has been reported under UnixWare 1. If this option is removed form xorg. For chipsets incapable of colour depths greater that 8bpp like thethe dotclock limit is solely determined by the highest dotclock the video processor is capable of handling.
Display Adapters – Chips And Technologies – Chips And Technologies 65555 Computer Driver Updates
Note that the reverse is also true. Note that technologiew of the chips except the rev A are 3. Use caution with this option, as driving the video processor beyond its specifications might cause damage. The xx chipsets can use MMIO for all communications with the video processor.
Note that linear addressing at 1 and tschnologies is not guaranteed to work correctly. Use caution as excess heat generated by the video processor if its specifications are exceeded might cause damage. The Xserver assumes that the framebuffer, if used, will be at the top of video ram.
Chips and Technologies specify that the memory clock used with the multimedia tecnologies running should be lower than that used without. Which is the reason for the drop in the dot clock.
This document attempts to discuss the features of this driver, the options useful in configuring it and the known problems. Wnd careful use of this option might boost performance.
This driver uses this capability to 65555 a 16bpp framebuffer on top of an 8bpp framebuffer. So for the various Chips and Technologies chips the maximum specifications are. In fact the timing for the flat panel are etchnologies on the specification of the panel itself and are independent of the particular mode chosen.
Trchnologies current programmable clock will be given as the last clock in the list. For the HiQV series of chips, the memory clock can be successfully probed. The technolkgies has independent display channels, that can be configured to support independent refresh rates on the flat panel and on the CRT.
The lower half of the screen is not accessible. The effect of this is that the maximum dot clock visible to the user is a half or a third of the value at 8bpp. For x chipsets the server assumes that the TFT bus width is 24bits. The servers solution to this problem is not to do doubling vertically.
However there are many older machines, particularly those with x screen or larger, that need to reprogram the panel timings. This option forces the two display channels to be used, giving independent refresh rates. If this is a problem, a work around is to remove the ” HWcursor ” option.
Chips and Technologies – Wikipedia
There has been much confusion about exactly what the clock limitations of the Chips and Technologies chipsets are. Hence you will see a line like. Note that it is overridden by the ” SWcursor znd option. Linear addressing is not supported for this card in the driver.
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XFree86 believes that the 8bpp framebuffer is overlayed on the 16bpp framebuffer. Therefore to use this option the server must be started in either 15 or 16bpp depth.
This option might also be used to reduce the speed of the memory fechnologies to preserve power in modes that don’t need the full speed of the memory to work correctly. In this case enough memory needs to be left for the largest unscaled video window that will be displayed.
In addition the device, screen and layout sections of the ” xorg.