Unfortunately these databooks lack register level information on the graphics part of the chipset. Without that adding dualhead support is not really possible. As far as I know intel has not released register level documentation for anything newer than the i810/15 graphics chips.
Alex --- Mario Kadastik <[EMAIL PROTECTED]> wrote: > Hello, > > I just wanted to ask on how far is the support on the i852/855 > chipset > Dual View. I can see from XFree86 startup log, that it sees the two > pipes and it also is able to start with either of the pipes active > (I'm > either having the TFT active or the external display and it boots > just > fine). But if I use the hardware switching of displays in Linux, then > I > get about 50 pixel rows in top of the screen with noise and I lose > about > the same size in the bottom of the picture. > > Also the laptop I have (Fujitsu-Siemens Lifebook S6120) doesn't > support > clone view as software independant as without Windows booted up the > clone view just isn't there. I can switch between the external and > internal display even while in Grub, but there is no clone view > there. > If I boot the factory installed windows, then I get also the clone > view > mode. > > I have tried XiG accelerated X demo version and with that I have > successfully seen undel Linux that the card runs not only clone view > but > also dual head (although clone view for some reason had the same > refresh > rate for external VGA as for the internal LCD and that sucked). I > wouldn't want to use propriatary X in my laptop so I wanted to ask > wether there is any support coming for at least the clone view as I > need > that even more than I need dual heads. > > I have seen in some threads that people say that there are no specs > from > intel regarding these chipsets available publicly. Just as I have > found > in one thread somewhere (don't ask me where it was as I don't > remember) > there are official chipset whitepapers available on intels site and > here's the link: > > http://developer.intel.com/design/mobile/chipsets/datashts/ > http://developer.intel.com/design/mobile/chipsets/specupdt/ > > I'm not a graphics developer, but I think the 855 graphics and memory > > hub chipset datasheed (around 200 pages) that describes the signals, > registers and so on should be the right document? > > I hope there will be some positive answers :) > > Mario Kadastik > > PS! I have tried to use i810switch to turn on the CRT while my LCD > was > on (on 855 chipset i810switch only support turning on/off the CRT not > > the LCD) and when I booted to X then I saw on my monitor that it > switched resolution/frequency (the hitachi monitor I had really makes > > you feel the change ;), it remained on (meaning that it received some > > sort of signal), but it was black as X detected there no active > display > although it sees that CRT is present when it tests all the different > possibilities, but it sees the maximum display size as (0,0) while on > > the LCD it sees (1024,768). > __________________________________ Do you Yahoo!? Find out what made the Top Yahoo! Searches of 2003 http://search.yahoo.com/top2003 _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
