Hi, I'm basically having the same problem (same segfault), but I can't find the correct way to configure my X server with the new intel driver. In fact I'm using two very different video cards for my xinerama setup: one i845G (driver intel) and one old Matrox Mystique (driver mga). I couldn't find any information about the new configuration with this type of setup, so I would appreciate a lot to get some help for this issue.
Here is an excerpt of my new xorg.conf (I removed the sections about the keyboard and DRI) : Section "Device" Identifier "matrox" Driver "mga" BusID "PCI:1:0:0" EndSection Section "Device" Identifier "Intel" Driver "intel" BusID "PCI:0:2:0" EndSection Section "Screen" Identifier "Default Screen" Device "Intel" DefaultDepth 16 SubSection "Display" Depth 24 Virtual 2048 2048 EndSubSection SubSection "Display" Depth 16 Virtual 2048 2048 EndSubSection EndSection I tried using two Device lines in my Screen section, and got some weird results; I tried with using +xinerama when starting the server, or without. I must say I could make it work in "two independant screens" mode (only the screen on the matrox card was a bit weird, but I suspect I'll have to try a preferred mode for that). Here is the relevant part of my old xorg.conf Section "Device" Identifier "Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device" Driver "intel" BusID "PCI:0:2:0" EndSection Section "Device" Identifier "Matrox Mystique" Driver "mga" BusID "PCI:1:0:0" EndSection Section "Monitor" Identifier "Philips 170S" Option "DPMS" Gamma 0.8 EndSection Section "Monitor" Identifier "NEC MultiSync FE950+" Option "DPMS" HorizSync 30-96 VertRefresh 50-160 EndSection Section "Screen" Identifier "Default Screen" Device "Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device" Monitor "Philips 170S" DefaultDepth 16 Lots of SubSection "Display" EndSection Section "Screen" Identifier "Second Screen" Device "Matrox Mystique" Monitor "NEC MultiSync FE950+" DefaultDepth 16 Lots of SubSection "Display" EndSection Section "ServerLayout" Identifier "Default Layout" Screen "Default Screen" Screen "Second Screen" RightOf "Default Screen" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection And I used to start X with the +xinerama option. Thanks for having read until this ;) Regards, -- Julien Wajsberg