Samsung Syncmaster 955df 19" Monitor
ATI AIW 128 Pro 32mb 4x AGP Video Card
Mandrake 8.2 r128 driver
Tried both Xfree 4.20 with and without acceleration.
I cannot get into a GUI with this combination.I have another working setup with a Radeon 32mb AIW card and a Syncmaster 950p monitor that works fine but when I shutdown I get "out of Sync range" messages on the screen.
I have edited the X11 config file with the pertinent info > the log file in /var/log shows that it's picking up everything ok.
With the ATI AIW 128 Pro card and the Samsung monitors when testing X during setup or starting X after editing > the screen just goes black into standy mode.For the hell of it I hooked up an older monitor from my Dell system (17" Trinitron)> have no problem booting into a GUI.Any ideas as to what else I need to edit to solve this problem?
I now realize this problem is a combination of the ATI AGP cards/the Xfree drivers and the Samsung monitors. The monitor is detected. I have the horizontal and vertical rates entered.I did have Mandrake running without a problem on an older machine with a 4mb Matrox millenium card and the Samsung monitor.I'm currently running Windows at 800x600 > 37.9kHz/60Hz PP.Can I find and add the Modeline info for this setting in the Configuration file ? If so: in the monitor or Device section?
Any suggestions out there?

Mandrake 8.2 ATI AIW 128 Pro 32mb 4x AGP Card/Monitor Problem:
Samsung Syncmaster 955DF 19" monitor
Using r128 driver.
No matter what I do I the monitor goes into Standby mode after configuring X and "startx".
I do have an ATI Radeon 32mb AIW AGP card running on a Samsung Syncmaster 950p 19" monitor. Only problem is "out of sync range" messages when I shutdown from Mandrake.
I did have Mandrake running on an older computer with a PCI Matrox Millenium 4mb video card on the Samsung monitor without a problem. I have come to realize that this problem revolves around the ATI cards,the XFree86 r128 driver and the Samsung Monitors.I have tried editing the XFconfig-4 file several times.I have the correct specs for the monitor and have even added specific ModeLine info into the configuration file.No luck so far. Below is the pertinent info for the monitor and from the configuration file.HELP!
955DF Monitor Info:

CRT Tube DynaFlat™ IFT
Size 19" diagonal
Viewable Image Size 18.0"
Dot Pitch 0.20mm (Horizontal)
Surface Treatment Smart III™ Treatment (Anti-Static & Anti-Glare)
Deflection 90
CRT Type Indefinitely Flat INVAR Shadow Mask
Pixel Frequency Maximum 135 MHz
Scanning
Frequency
Auto Scanning Horizontal 30-85 KHz
Vertical 50-160 Hz
Compatibility Recommended Mode 1280 x 1024 / 75Hz
Supportable Refresh Rate Max 1600 x 1200 / 68Hz
VESA 1600 x 1200 / 65Hz
1280 x 1024 / 60, 70, 75, 80Hz
(80Hz max)
1024 x 768 / 87i, 60, 70, 75, 85Hz
800 x 600 / 56, 60, 72, 75, 85Hz
640 x 480 / 72, 75, 85Hz
XFConfig-4 Info:
Section "Module"

# This loads the DBE extension module.
Load "dbe"

Load "glx"
Load "dri"
Load "drm"
SubSection "extmod"
#Option "omit xfree86-dga"
EndSubSection
Load "type1"
Load "freetype"
Section "DRI"
Mode 0666
EndSection
Section "Monitor"
Identifier "monitor1"
VendorName "SAM"
ModelName "S/M 955df"
# Option "DPMS"
ModeLine "800x600" 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync
# 800x600, 60.0Hz; hfreq=37.879002, vfreq=60.317001
ModeLine "1024x768" 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
ModeLine "1280x1024" 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
HorizSync 30-85
VertRefresh 50-160
Section "Device"
Identifier "ATI Rage 128"
VendorName "ATI"
BoardName "ATI Rage 128 Pro"
Driver "r128"
VideoRam 32768
Chipset "ATI Rage 128 Pro PF (AGP)
ChipID 0x5046
BusID "PCI:01:0:0"
# Clock lines


# Uncomment following option if you see a big white block
# instead of the cursor!
# Option "sw_cursor"
# Option "noaccel"
Option "UseCCEFor2D"
Option "AGPMode" "1"
# Option "DPMS" "on"
EndSection
ection "Screen"
Identifier "screen1"
Device "ATI Rage 128"
Monitor "monitor1"
DefaultColorDepth 16
Subsection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600"
ViewPort 0 0
# Virtual 800 600
EndSubsection
Subsection "Display"
Depth 15
Modes "1280x1024" "1024x768" "800x600"
ViewPort 0 0
# Virtual 800 600
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600"
ViewPort 0 0
# Virtual 800 600
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600"
ViewPort 0 0
# Virtual 800 600
EndSubsection
Subsection "Display"
Depth 32
Modes "1280x1024" "1024x768" "800x600"
ViewPort 0 0
# Virtual 800 600
EndSubsection
EndSection


Section "ServerLayout"
Identifier "layout1"
Screen "screen1"

InputDevice "Mouse1" "CorePointer"

InputDevice "Keyboard1" "CoreKeyboard"
EndSection

I look at the XFree log file for error messages- the only one that's always there is the "no DFP detected" for Flat panel setups.
I've tried commenting out DPMS from both the monitor and device sections. There must be a way to make this work. I'm hoping with the info provided the some Linux Guru has a solution for me- thank's.

well u got to adjust the display settings such that it does not go into the stand by mode
use preview to determine the setting is working

if u have found any other answer than this please reply back it mite be useful for me

-srikant

Try entering the vert and horiz rates directly into the Monitor section of XF86Config, here's mine from a pair of SyncMaster 900p's, although I'm certain yours are different, these hulking beasts were a cul-de-sac on Samsung's evolutionary chain.

Cheers,

Finegan