I'm using dualhead an ASUS with ATI Radeon Xpress 1100 200M against a Belinea SVGA monitor.
The latest version now of xf86-video-ati drives the second monitor in an unstable state of shivering, trembling, flickering very fast (or something like that).
Here is the relevant part from /etc/X11/xorg.conf:
<<<
#
Section "Module" #
Load "xaa" #
Load "GLcore" #
Load "glx" #
Load "dri" #
Load "dbe" #
Load "vbe" #
SubSection "extmod" #
Option "omit XFree86-DGA" #
EndSubSection #
Load "bitmap" #
Load "type1" #
Load "freetype" #
Load "record" #
Load "evdev" #
Load "fbdevhw" #
Load "vgahw" #
Load "int10" #
EndSection #
#
Section "Monitor" #
Identifier "LCD 15.4'' WXGA" #
# Option "Enable" "true" #
Option "DPMS" "on" #
# Option "Rotate" "normal" #
# Option "Gamma" "1.0" #
#
HorizSync 28.0 - 96.0 #
VertRefresh 50.0 - 75.0 #
EndSection #
#
Section "Monitor" #
Identifier "VGA 17'' Belinea" # 10 30 75 (12 17 26) #
Option "DPMS" "on" #
Option "Enable" "false" #
Option "Ignore" "false" #
## Option "Rotate" "inverted" #
## Option "Gamma" "1.0" #
#
HorizSync 31.5 - 64.3 #
VertRefresh 50.0 - 90.0 #
#
## Modeline "1024x768x84.9" 94.50 1024 1096 1200 1376 768 771 775 809 -hsync +vsync
EndSection #
#
Section "Device" #
Identifier "RC410 [ATI Radeon Xpress 200M]" #
Driver "radeon" #
# Chipset "ATI Radeon XPRESS 200M 5A62 (PCIE)" #
ChipID 0x5A62 #
BusID "PCI:1:5:0" #
#
Option "Monitor-LVDS" "LCD 15.4'' WXGA" #
Option "Monitor-VGA-0" "VGA 17'' Belinea" #
#
# sw_cursor is needed for some ati and radeon cards #
## Option "SW_cursor" "true" #
Option "DynamicClocks" "on" #
#
#0 Option "NoAccel" #
Option "RenderAccel" "on" #
Option "AccelMethod" "XAA" #
Option "XAANoOffscreenPixmaps" "true" #
#
Option "BusType" "PCIE" #
Option "DDCMode" "off" #
Option "VGAAccess" "on" #
#
Option "UseInternalAGPGART" "yes" #
Option "GARTSize" "64" #
Option "AGPMode" "4" #
Option "AGPFastWrite" "1" #
#
Option "EnablePageFlip" "1" #
Option "ColorTiling" "1" #
Option "SubPixelOrder" "RGB" #
#
#! Option "DRI" "false" #
#
Option "NoMTRR" "true" #
#! Option "ModeDebug" "false" #
Option "Backingstore" "on" #
EndSection #
>>>
Until the problem can be fixed, I've switched back to =x11-drivers/xf86-video-ati-6.8.0-r1.
Thanks,
Sjeba