[ltp] T40: Suspend/Resume and Standby now working with Redhat9!

[Stefan Farestam]

All,

Having shared the frustrations with many people on this
board with getting suspend/resume working on T40, I
finally got it working. Many thanks to Brad Langhorst
for assisting me!

This is what I have:
   T40 laptop running RedHat9

This is what works:
   * <Fn><F3> which puts the machine in standby
   * <Fn><F4> or <lid closure> for suspend
   * I haven't tested hibernation yet
   * glxgears runs at 700 FPS
   * tuxracer!

Problems:
   * If a USB device is left plugged in when the machine
     goes into suspend, then USB seems to hang

The configuration:
   * The RedHat severn distribution of XFree86:
     http://ftp.redhat.com/pub/redhat/linux/beta/severn/en/os/i386/RedHat/RPMS/*-4.3.0-33*.rpm

   * Kernel compiled with framebuffer support. Relevant kernel
     args

        CONFIG_FB=y
        CONFIG_DUMMY_CONSOLE=y
        # CONFIG_FB_RIVA is not set
        # CONFIG_FB_CLGEN is not set
        # CONFIG_FB_PM2 is not set
        # CONFIG_FB_PM3 is not set
        # CONFIG_FB_CYBER2000 is not set
        CONFIG_FB_VESA=y

   * Kernel startup args (to be put in grub.conf or lilo.conf). This turns
     on framebuffer support for the console:
        vga=834

   * XF86Config

     Section "Module"
	Load	"GLcore"
	Load	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
     EndSection

     Section "Device"
	Identifier	"ATI Radeon Fire 9000"
	Driver		"radeon"
     EndSection

     Section "Screen"
	Identifier "Screen0"
	Device     "ATI Radeon Fire 9000"
	Monitor    "Monitor0"
	DefaultDepth     24
	SubSection "Display"
		Depth     24
		Modes    "1400x1050" "1280x1024" "800x600" "640x480"
	EndSubSection
     EndSection

Note that the framebuffer is only used for the console. The key
things that I discovered was that:

   * The Severn dist of XFree86 cured the <Fn><F3> problem and
     made it possible to suspend/resume, albeit with the X
     server crashing (but not hanging the machine!) on resume.

   * Using the framebuffer device for the console made it possible
     to suspend/resume without crashing the Xserver.

Have fun,
Stefan