[ltp] T30 with an external Display

[Gregor Rojec-Goldmann]

Hello,

I have a T30 with Radeon Mobility M7 LW (Radeon 7500) and 1400x1050 with 
XFree 4.2.1 and Debian testing.

I would like to connect an external display with different resolution 
than the builtin LCD to the running X server.

I changed the resolution in the X configuration file and it works. I 
start the X server with different config files for different settings. 
But there are two problems:

1. There is no mirroring. I can switch to the external or internal
   display, but can't have the picture on both at the same time, which is
   annoying at presentations.

2. When I shut down the X server after connecting and disconnecting an 
external display the video get corrupted and I have to reboot.


It would also be great if I could use Ctrl+Alt+NumPad+- to switch the 
resolution of the running X server, but I couldn't get it to work 
either. The manpage says that it should be used with a boolean (Option 
"DontZoom"  "boolean"), but the xserver will not accept a boolean value 
on this option.

Any experience with this?

Best regards,
Gregor


p.s.

My XF86Config-4 with 1024x756 without 1400x1050:
----------------------------------------------------------------------------------------
Section "Files"
	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/Type1"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"pex5"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
	Load	"xie"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc101"
	Option		"XkbLayout"	"de"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/psaux"
	Option		"Protocol"		"PS/2"
	Option		"ZAxisMapping"		"4 5"
EndSection

Section "InputDevice"
	Identifier	"Generic Mouse"
	Driver		"mouse"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"ZAxisMapping"		"4 5"
EndSection

Section "Device"
	Identifier	"Generic Video Card"
	Driver		"radeon"
	VideoRam	16384
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	DefaultDepth	24

         SubSection "Display"
	        Depth           16
		Modes           "1024x768"
		EndSubSection
		SubSection "Display"
		Depth           24
         	Modes           "1024x768"
	EndSubSection
# 
SubSection "Display"
# 
	Depth		32
# 
	Modes		"1400x1050"
# 
EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	InputDevice	"Generic Mouse"
EndSection

Section "DRI"
	Mode	0666
EndSection