[855GM] Xorg freeze at gdm time

Binary package hint: xorg

Xorg always freezes at gdm login prompt (reproducable). Xorg automatically start itself with vga16fb driver.

- Ubuntu Lucid Beta1 2.6.32-19-generic
- xserver-xorg-video-intel 2:2.9.1-3ubuntu1
- xserver-xorg 1:7.5+3ubuntu1

Hardware: Maxdata Pro 600I Laptop, Intel 855GM video card.

00:02.1 Display controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
        Subsystem: ASUSTeK Computer Inc. Device 1742
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Region 0: Memory at e8000000 (32-bit, prefetchable) [size=128M]
        Region 1: Memory at fea80000 (32-bit, non-prefetchable) [size=512K]
        Capabilities: [d0] Power Management version 1
                Flags: PMEClk- DSI+ D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+3ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
Architecture: i386
Date: Sat Apr 3 14:30:38 2010
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
Lsusb:
 Bus 004 Device 002: ID 046d:c052 Logitech, Inc.
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: MAXDATA PRO 600 I
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-19-generic root=UUID=b0b22e54-9b1b-4dbf-a49f-bab2ff97537b ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
dmi.bios.date: 02/02/2005
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0204.005
dmi.board.name: PRO 600 I
dmi.board.vendor: MAXDATA
dmi.board.version: 2.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: MAXDATA
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0204.005:bd02/02/2005:svnMAXDATA:pnPRO600I:pvr5123660003:rvnMAXDATA:rnPRO600I:rvr2.0:cvnMAXDATA:ct10:cvr1.0:
dmi.product.name: PRO 600 I
dmi.product.version: 5123660003
dmi.sys.vendor: MAXDATA
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-19-generic

[lspci]
00:00.0 Host bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
     Subsystem: ASUSTeK Computer Inc. Device 1741
00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
     Subsystem: ASUSTeK Computer Inc. Device 1742