Ubuntu
xserver-xorg-video-intel package

Acer AL1916W LCD Display does not run native resolution

Asked by Agent_Nappi

I'm trying to use an Acer AL1916W LCD Display with Ubuntu 6.10.

It is not possible to set display resolution to 1400 x 900 (nativ resolution of the display)

gnome-display-properties only provide the following resolutions to choose:
640x480
800x600
1024x768
1280x1024

xorg.conf :

Section "Device"
 Identifier "Intel Corporation 82865G Integrated Graphics Controller"
 Driver "i810"
 BusID "PCI:0:2:0"
EndSection

Section "Monitor"
 Identifier "Acer AL1916W"
 Option "DPMS"
EndSection

Section "Screen"
 Identifier "Default Screen"
 Device "Intel Corporation 82865G Integrated Graphics Controller"
 Monitor "Acer AL1916W"
 DefaultDepth 24
 SubSection "Display"
  Depth 1
  Modes "1440x1440" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
 EndSubSection
 SubSection "Display"
  Depth 4
  Modes "1440x1440" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
 EndSubSection
 SubSection "Display"
  Depth 8
  Modes "1440x1440" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
 EndSubSection
 SubSection "Display"
  Depth 15
  Modes "1440x1440" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
 EndSubSection
 SubSection "Display"
  Depth 16
  Modes "1440x1440" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
 EndSubSection
 SubSection "Display"
  Depth 24
  Modes "1440x1440" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
 EndSubSection
EndSection

Section "ServerLayout"
 Identifier "Default Layout"
 Screen "Default Screen"
 InputDevice "Generic Keyboard"
 InputDevice "Configured Mouse"
 InputDevice "stylus" "SendCoreEvents"
 InputDevice "cursor" "SendCoreEvents"
 InputDevice "eraser" "SendCoreEvents"
EndSection

Section "DRI"
 Mode 0666
EndSection

ddcprobe output is:

vbe: VESA 3.0 detected.
oem: Intel(r)865G Graphics Chip Accelerated VGA BIOS
vendor: Intel Corporation
product: Intel(r)865G Graphics Controller Hardware Version 0.0
memory: 12288kb
mode: 1280x1024x256
mode: 1280x1024x64k
mode: 1280x1024x16m
mode: 1024x768x256
mode: 1024x768x64k
mode: 1024x768x16m
mode: 640x480x16m
mode: 800x600x64k
mode: 800x600x16m
mode: 640x480x256
mode: 800x600x256
mode: 640x480x64k
edid:
edid: 1 3
id: ad52
eisa: ACRad52
serial: 64602a69
manufacture: 46 2006
input: sync on green, analog signal.
screensize: 41 26
gamma: 2.200000
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@60
ctiming: 1280x960@60
ctiming: 1152x864@75
ctiming: 1440x1440@60
dtiming: 1440x900@69
monitorrange: 30-82, 56-76
monitorname: Acer AL1916W
monitorserial: L52091266321

I've allready tryed several things like adding a Modline created with gft to xorg.conf:
 # 1440x900 @ 60.00 Hz (GTF) hsync: 55.92 kHz; pclk: 106.47 MHz
  Modeline "1440x900_60.00" 106.47 1440 1520 1672 1904 900 901 904 932 -HSync +Vsync

and using 915resolution:
sudo 915resolution 5a 1440 900

Restarting the X-Server after that, but all without success.
Hopefully there is somebody out there who can assist me solving this issue.

The hardare is able to support this. It runs fine under MS XP

Lokking forward to any suggestions.

Regards Agent_Nappi

Question information

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Ubuntu xserver-xorg-video-intel Edit question
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Agent_Nappi
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Revision history for this message
Agent_Nappi (dirk-napierala) said : 		#1

Sorry I mentioned the wrong Display name.

The right name is AL1916W

Revision history for this message
GabrielGrant (gabrielgrant) said : 		#2

Hi, i think you may have a typo in your xorg.conf:
In your Default Screen section, all the modes seem to list "1440x1440" rather than "1400 x 900".

Hopefully changing those will help :)

-Gabriel

Revision history for this message
GabrielGrant (gabrielgrant) said : 		#3

As a side note, the fact that the proper screen setup is not automatically detected is discussed a bit in bug #67369 and in bug #96925 (among others in https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-i810/+bugs). If you'd like to help out fixing this problem, please follow the information at https://help.ubuntu.com/community/DebuggingXAutoconfiguration and help with the bug reports (preferably the second one ) by confirming and posting information, or file a new report at https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-i810/+filebug

Thanks,
-Gabriel

Revision history for this message
Best Agent_Nappi (dirk-napierala) said : 		#4

Hi Gabriel

I finaly made it :-) My screen is now also running with 1440x900 nativ resolution.

Here what I've done in xorg.conf:
Section "Device"
 Identifier "Intel Corporation 82865G Integrated Graphics Controller"
 Driver "i810"
 BusID "PCI:0:2:0"
 Option "ModeValidation" "NoDFPNativeResolutionCheck"
 Option "NoAccel"
 Option "IgnoreEDID"
 Option "NoDDC"
EndSection

Section "Monitor"
 Identifier "Acer AL1916W"
 Option "DPMS"
 HorizSync 36-72
 VertRefresh 36-60
 Modeline "1440x900" 135.75 1440 1536 1688 1936 900 903 909 942 -hsync +vsync
EndSection

Section "Screen"
 Identifier "Default Screen"
 Device "Intel Corporation 82865G Integrated Graphics Controller"
 Monitor "Acer AL1916W"
 DefaultDepth 16

 SubSection "Display"
  Depth 16
  Modes "1440x900" "1280x1024" "1024x768" "800x600" "640x480"
 EndSubSection
EndSection

Section "ServerLayout"
 Identifier "Default Layout"
 Screen "Default Screen"
 InputDevice "Generic Keyboard"
 InputDevice "Configured Mouse"
 InputDevice "stylus" "SendCoreEvents"
 InputDevice "cursor" "SendCoreEvents"
 InputDevice "eraser" "SendCoreEvents"
EndSection

Section "DRI"
 Mode 0666
EndSection

I've than created a file called resolutionfix.sh in /etc/init.d with the following content:
915resolution 58 1440 900 32 1904 930
and added it to the system startup with
sudo update-rc.d resolutionfix.sh defaults 01

After that I was able to choose 1440x900 resolution in gnome.

Thank you for pointing me to the right direction.

Best regards
Agent

Revision history for this message
Rodrigo Junes (rjunes) said : 		#5

I have the same problem as you, the difference is that I've got an Nvidia GeForce 8500 gt. Until yesterday it was running just fine in 1440x900, but now it just won't recognize my monitor (acer AL1916W, same as yours).

I'm running Ubuntu 10.04. I tried reinstalling it, but it didn't work, I reinstalled the nvidia drivers, but it didn't work either...

I tried using the default monitor configuration utility (system > preferences > monitors), but it didn't recognize the monitor.

I don't seem to be able to follow the same steps as you did, I'm a new user and my experience with command lines is quite small.

I'd like to know if there is any way around this problem, which suits my limited user capabilities.

I really look forward to hearing from you, and thank you for your time.

Rodrigo

Revision history for this message
Rodrigo Junes (rjunes) said : 		#6

I turned on my computer today to find the problem has solved. I don't know how and why (and that kind of worries me), but the Nvidia XServer recognized my acer AL1919W an is now running with native resolution as it should be.

I'll let you know if there is a turn of events...

Rodrigo