X.org

X.org hat derzeit die beste Unterstützung für i815 und i855gm Graphikchips, die letzten XFree i810 Treiber commits waren und sind fehlerhaft was sich im XVideo(Overlay) Bereich bemerkbar macht (die Offset Register wurden falsch initialisiert).

Driver interface: http://www.xfree86.org/4.3.0/DESIGN3.html

Interessante Einstellungen bezüglich der Position mehrerer Screens:

Section "ServerLayout" Identifier "Main Layout" Screen 0 "Screen 1" Absolute 0 0 Screen 1 "Screen 2" Absolute 1024 0 Screen "Screen 3" Absolute 2048 0 EndSection

Docs:

  http://cvs.freedesktop.org/xorg/xc/programs/Xserver/hw/xfree86/xaa/XAA.HOWTO?rev=1.2&view=auto
  http://www.xfree86.org/4.3.0/DESIGN.html

  http://tungstengraphics.com/chromium/
  http://chromium.sourceforge.net/

  http://www.wikiservice.at/dse/wiki.cgi?MarkusRechberger/i810_patch

Code

/sdb/devel/xc/programs/Xserver/hw/xfree86/common/xf86str.h

typedef struct { int vendor; int chipType; int chipRev; int subsysVendor; int subsysCard; int bus; int device; int func; int class; int subclass; int interface; memType memBase[6]; memType ioBase[6]; int size[6]; unsigned char type[6]; memType biosBase; int biosSize; pointer thisCard; Bool validSize; Bool validate; CARD32 listed_class; } pciVideoRec, *pciVideoPtr;

typedef struct { char * identifier; char * vendor; char * board; char * chipset; char * ramdac; char * driver; struct _confscreenrec * myScreenSection; Bool claimed; int dacSpeeds[MAXDACSPEEDS]; int numclocks; int clock[MAXCLOCKS]; char * clockchip; char * busID; Bool active; Bool inUse; int videoRam; int textClockFreq; unsigned long BiosBase; /* Base address of video BIOS */ unsigned long MemBase; /* Frame buffer base address */ unsigned long IOBase; int chipID; int chipRev; pointer options; int irq; int screen; /* For multi-CRTC cards */ } GDevRec, *GDevPtr;

Treiber liegen unter:

 /sdb/devel/xc/programs/Xserver/hw/xfree86/drivers/i810

00:21 < revenger_> hey,.. I probably just have a simple question .. what's the idea behind vsync and hsync? .. in windows (god beware used it 4 years last time on my private pc) it was always possible to set the HZ value but in xfree I have to set the other values 00:22 < revenger_> I have no idea what connects hsync and vsync to that general hz value 00:22 < ajax> if you're thinking of a Hz value as indicating your refresh rate, you're thinking of the vsync rate 00:23 < ajax> hsync rates are usually measured in kHz 00:24 < revenger_> so that means from left to the right the refresh rate is kHz just from the top to the bottom the "general value"? 00:25 < ajax> yeah. CRTs scan left to right, then top to bottom 00:26 < ajax> the hsync rate is how often the beam retraces from right edge to left edge, the vsync rate is how often the beam retraces from bottom to top 00:26 < ajax> so obviously the hsync rate will be much higher because you do it hundreds of times for each vertical retrace 00:26 < revenger_> (just thought about it because I got a video beamer a few months ago people wrote it's a nice beamer but I'm not really satisfied 100% with what I get there.. fast scenes still look strange..) 00:27 < revenger_> thanks for that info :-)