Problems with kernel-2.6.26 and 2.6.27-0.x.rc2

[Joshua C.]

2008/8/31 Dave Airlie <airlied at redhat.com>:
>
> So you have two problems.. one is a kernel module is loading and hanging
> the boot process, this is usually blamed on udev, the fact that hitting
> a key helps implies some interrupt handling problem maybe..

You were right. the problem with udev concerns the timer broadcast for
the amd processors. the
linux-2.6-x86-32-amd-c1e-force-timer-broadcast-late.patch corrected
this. I tried it with 2.6.26.3-17.fc9 and 2.6.27-0.290.rc5.fc10 and
everything is fine. the udev starts normally. so i can close the first
bug. Now about the kernel modesetting:

>
> The other is the graphical boot not working properly on your card, for
> that you can boot with nomodeset on the command line, if udev hangs that
> is the other problem. For the graphical boot, I'd need to know the
> graphics card and type of card, agp pci etc. and type of display plugged
> in.
>
> Dave.

with the patch applied and nomodeset at the command line the kernel
loads fine until the time for the xserver to start. then i get a blank
screen. just nothing. here are the specs for my card:

integrated Radeon Xpress 1100 on acer aspire laptop.

#lscpi -vvv
01:05.0 VGA compatible controller: ATI Technologies Inc RS485 [Radeon
Xpress 1100 IGP] (prog-if 00 [VGA controller])
        Subsystem: Acer Incorporated [ALI] Unknown device 010f
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 66 (2000ns min), Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 17
        Region 0: Memory at c8000000 (32-bit, prefetchable)
[size=128M]
        Region 1: I/O ports at 9000 [size=256]
        Region 2: Memory at c0100000 (32-bit, non-prefetchable)
[size=64K]
        [virtual] Expansion ROM at c0120000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Kernel modules: radeonfb

According to the x.org this should be RS482 card but it is reported as RS485

#lspci -nnn
01:05.0 VGA compatible controller [0300]: ATI Technologies Inc RS485
[Radeon Xpress 1100 IGP] [1002:5975]

It is an integrated display. No external one attached.

here is my xorg.conf
----------------------------------------------------
Section "ServerLayout"
	Identifier     "Default Layout"
	Screen      0  "Screen0" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"
	InputDevice    "Synaptics" "CorePointer"
EndSection

Section "Files"

EndSection

Section "ServerFlags"
	Option	    "AIGLX" "on"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "de"
EndSection

Section "InputDevice"
	Identifier   "Synaptics"
	Driver       "synaptics"
	Option       "SendCoreEvents"
	Option       "TapButton1" "1"
	Option       "TapButton2" "2"
	Option       "TapButton3" "3"
	Option       "Device" "/dev/input/mice"
	Option       "Protocol" "auto-dev"
	Option       "Emulate3Buttons" "yes"
	Option       "MinSpeed" "0.3"
	Option       "MaxSpeed" "0.4"
	Option       "MinTapTime" "110"
	Option       "MaxTapTime" "350"
	Option       "ClickTime" "0"
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "radeon"
	Option	    "AccelMethod" "EXA"
	Option	    "DRI" "True"
EndSection

Section "Module"
	Load "ddc"
	Load "vbe"
	Load "GLcore"
	Load "dbe"
	Load "dri"
	Load "extmod"
	Load "glx"
	Load "bitmap"
	Load "freetype"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

Section "DRI"
	Mode         0666
EndSection

Section "Extensions"
	Option	    "Composite" "Enable"
EndSection
-----------------------------------------------------------

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