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Acer Al1916W monitor problem

I recently installed Ubuntu 8.10 and everything is great besides one thing. I get this annoying "Input not supported" message before i log in. After i log in my screen flickers black then it goes away. From what i have read searching google i need to change my xorg.conf file to accept the 1440:900 resulation but thats were my problem is.

Section "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
EndSection

Section "Files"
EndSection

Section "Module"
EndSection

Section "Monitor"
Identifier "Configured Monitor"
EndSection

Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection

Section "Device"
Identifier "Configured Video Device"
EndSection

Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
BusID "PCI:2:0:0"
Option "UseEDIDFreqs" "FALSE"
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Configured Video Device"
Monitor "Configured Monitor"
EndSection

Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
Monitor "aticonfig-Monitor[0]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection

The xorg.conf file doesnt seem to recognize the monitor at all and doesnt list any resolutions. My video card is ATI Sapphire X1650 and i installed the drivers from ATIs website.

for grins why don't we check what the system sees when it probes your monitor ?

xresprobe fglrx

ddcprobe

get-edid

The first two tools are part of the xresprobe package, and get-edid is part of the read-edid package. You will probably have to install the packages to use the tools.

These all fail on my current system because my KVM Switch blocks the probe :(

Then what you might want to try is calculating a modeline for your monitor to force a specific resolution and refresh rate using the cvt command.

Code:

it-lenny:~# cvt  1440 900 refresh 70

# 1440x900 69.81 Hz (CVT) hsync: 65.62 kHz; pclk: 126.00 MHz

Modeline "1440x900_70.00"  126.00  1440 1528 1680 1920  900 903 909 940 -hsync +vsync

Code:

Section "ServerLayout"

Identifier "aticonfig Layout"

Screen 0 "aticonfig-Screen[0]-0" 0 0

EndSection



Section "Files"

EndSection



Section "Module"

EndSection



Section "Monitor"

Identifier "Configured Monitor"

EndSection



Section "Monitor"

Identifier "aticonfig-Monitor[0]-0"

Option "VendorName" "ATI Proprietary Driver"

Option "ModelName" "Generic Autodetecting Monitor"

Option "DPMS" "true"

# 1440x900 69.81 Hz (CVT) hsync: 65.62 kHz; pclk: 126.00 MHz

Modeline "1440x900_70.00"  126.00  1440 1528 1680 1920  900 903 909 940 -hsync +vsync

EndSection



Section "Device"

Identifier "Configured Video Device"

EndSection



Section "Device"

Identifier "aticonfig-Device[0]-0"

Driver "fglrx"

BusID "PCI:2:0:0"

Option "UseEDIDFreqs" "FALSE"

EndSection



Section "Screen"

Identifier "Default Screen"

Device "Configured Video Device"

Monitor "Configured Monitor"

EndSection



Section "Screen"

Identifier "aticonfig-Screen[0]-0"

Device "aticonfig-Device[0]-0"

Monitor "aticonfig-Monitor[0]-0"

DefaultDepth 24

SubSection "Display"

Viewport 0 0

Depth 24

Modes "1440x900_70.00"

EndSubSection

EndSection

then restart X to apply the settings change CTRL+ALT+BACKSPACE

(I'm assuming you are making a backup of the xorg.conf file before making changes too... just in case)

Here is the output i got for the three commands from the xresprobe and read-edid packages:

xresprobe fglrx came up empty like so:

Code:

id: 

res: 

freq: 

distype:

ddcprobe

Code:

vbe: VESA 3.0 detected.

oem: ATI ATOMBIOS

vendor: (C) 1988-2005, ATI Technologies Inc.

product: RV535 01.00

memory: 16384kb

mode: 640x400x256

mode: 640x480x256

mode: 800x600x256

mode: 1024x768x256

mode: 1280x1024x256

mode: 640x480x32k

mode: 640x480x64k

mode: 800x600x32k

mode: 800x600x64k

mode: 1024x768x32k

mode: 1024x768x64k

mode: 1280x1024x32k

mode: 1280x1024x64k

mode: 320x200x32k

mode: 320x200x64k

mode: 1600x1200x256

mode: 1600x1200x32k

mode: 1600x1200x64k

edid: 

edid: 1 3

id: ad86

eisa: ACRad86

serial: 8351aa48

manufacture: 35 2008

input: sync on green, analog signal.

screensize: 40 25

gamma: 2.070000

dpms: RGB, active off, no suspend, no standby

timing: 720x400@70 Hz (VGA 640x400, IBM)

timing: 720x400@88 Hz (XGA2)

timing: 640x480@60 Hz (VGA)

timing: 640x480@67 Hz (Mac II, Apple)

timing: 640x480@72 Hz (VESA)

timing: 640x480@75 Hz (VESA)

timing: 800x600@60 Hz (VESA)

timing: 800x600@72 Hz (VESA)

timing: 800x600@75 Hz (VESA)

timing: 832x624@75 Hz (Mac II)

timing: 1024x768@87 Hz Interlaced (8514A)

timing: 1024x768@70 Hz (VESA)

timing: 1024x768@75 Hz (VESA)

timing: 1280x1024@75 (VESA)

ctiming: 1280x1024@75

ctiming: 1280x1024@60

ctiming: 1440x1440@60

ctiming: 1440x1440@75

dtiming: 1440x900@69

dtiming: 0x844@646

monitorrange: 30-83, 55-75

monitorname: Acer AL1916W

get-edid:

Code:

Performing real mode VBE call

        Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0

        Function supported

        Call successful



        VBE version 300

        VBE string at 0xc0250 "ATI ATOMBIOS"



VBE/DDC service about to be called

        Report DDC capabilities



        Performing real mode VBE call

        Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0

        Function supported

        Call successful



        Monitor and video card combination does not support DDC1 transfers

        Monitor and video card combination supports DDC2 transfers

        0 seconds per 128 byte EDID block transfer

        Screen is not blanked during DDC transfer



Reading next EDID block



VBE/DDC service about to be called

        Read EDID



        Performing real mode VBE call

        Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0

        Function supported

        Call successful

Should i continue with your instructions on changing the xorg.conf?

Ok i edited the xorg.conf like you said and the floating "Input not supported" went away but now the picture is thrown off. Like it is projecting the picture as if it was not a widescreen, there is a huge black area to the left.

Err yeah I goofed and calculated 1400x900 @ 60 instead of 1440x900 @ 70 which the query said your monitor should support..

I updated my previous post to correct my mistake so give those corrections a try.

Sorry about that.. Guess I was more interested in getting to Lunch than paying attention to what I was doing.

Not a problem...everything works great now!

Thanks alot :)

Sorry bout all my flipflopping around to get the changes updated.

Glad it's working for you now :)

and I can see that ddcprobe provided the most useful output.. I'll file that info away for next time....