LinuxQuestions.org
Review your favorite Linux distribution.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
Reload this Page unable to obtain maximum resolution on widescreen monitor
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 10-20-2007, 12:34 PM   #1
e^(i*pi)
LQ Newbie
 
Registered: Feb 2007
Location: Louisville, KY
Distribution: Ubuntu
Posts: 14

Rep: Reputation: 0
unable to obtain maximum resolution on widescreen monitor

I am having a problem with my resolution. I have a Samsung SyncMaster 906BW 19" widescreen monitor, which should be set at 1440x900. The highest I can set it at however is 1024x768. I am runnint Ubuntu 6.06. Here is my xorg.conf file.

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ExplorerPS/2"
	Option		"ZAxisMapping"		"4 5"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "stylus"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "stylus"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "eraser"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "eraser"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "cursor"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "cursor"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "Device"
	Identifier	"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Driver		"i810"
	BusID		"PCI:0:2:0"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync	28-51
	VertRefresh	43-60
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Monitor		"Generic Monitor"
	DefaultDepth	16
	SubSection "Display"
		Depth		1
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"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 had the same problem once before and fixed it this way
http://ubuntuforums.org/showthread.php?t=477644

As I mention in that thread, that method is no longer working for some reason. If anyone has any ideas or needs any more info, please let me know.
 
Old 10-20-2007, 12:48 PM   #2
pixellany
LQ Veteran
 
Registered: Nov 2005
Location: Annapolis, MD
Distribution: Mint
Posts: 17,809

Rep: Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743
On the face of it, you would simply have to add the desired mode. Since your default depth is set to 16, try just changing this subsection:

SubSection "Display"
Depth 16
Modes "1400x1050" "1024x768" "800x600" "640x480"
EndSubSection

With my 24" Dell, I had trouble getting it working with basic modes, and had to use a modeline. I found this nifty tool: "gtf"
Here is a relevant link:
http://www.linuxquestions.org/questi...%281280x768%29
 
Old 10-20-2007, 01:38 PM   #3
e^(i*pi)
LQ Newbie
 
Registered: Feb 2007
Location: Louisville, KY
Distribution: Ubuntu
Posts: 14

Original Poster
Rep: Reputation: 0
OK, I added the resolution to my default depth and that didn't work, so then I used the gtf and added the modeline to my monitor section and that also didn't work. Here is my xorg.conf file now

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ExplorerPS/2"
	Option		"ZAxisMapping"		"4 5"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "stylus"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "stylus"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "eraser"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "eraser"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "cursor"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "cursor"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "Device"
	Identifier	"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Driver		"i810"
	BusID		"PCI:0:2:0"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync	28-51
	VertRefresh	43-60
	# 1440x900 @ 60 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
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Monitor		"Generic Monitor"
	DefaultDepth	16
	SubSection "Display"
		Depth		1
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1440x900" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"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
Any more suggestions?
 
Old 10-20-2007, 01:41 PM   #4
sonichedgehog
Member
 
Registered: Oct 2007
Location: London UK
Distribution: Fedora Core 17
Posts: 298

Rep: Reputation: 32
unable to get beyond 640x480-have tried :
-examining xorg.conf- it looks mostly like the example you posted, and definitely has the required higher resolutions
-xvidtune- confirms 640x480- but unable to find xf86config-4 (not in my debian system) as suggested
-sudo dpkg (etc)- but I chickened out because it seemed to be asking me to potentially change too much, not sensible on a system that's otherwise working well?
(Preferences gives no other resolution options)
I have seen a suggestion on a forum somewhere that an old video card (1998 in my case) might be unsupported. Sorry I have also asked for help in reply to another resolution thread here but have tried other things (as above) since.
If advice from experienced users is to assume my video card is too old and leave well enough alone then I will do so. Thanks for reading this!
 
Old 10-20-2007, 02:35 PM   #5
pixellany
LQ Veteran
 
Registered: Nov 2005
Location: Annapolis, MD
Distribution: Mint
Posts: 17,809

Rep: Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743
Try changing Vert Refresh to 59.9-60.1

and

change the Modeline to remove the ".00" at the beginning---ie make it "1440x900_60"
 
Old 10-20-2007, 04:20 PM   #6
e^(i*pi)
LQ Newbie
 
Registered: Feb 2007
Location: Louisville, KY
Distribution: Ubuntu
Posts: 14

Original Poster
Rep: Reputation: 0
Changes made, still stuck at lower resolution. Here is my xorg.conf now.

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ExplorerPS/2"
	Option		"ZAxisMapping"		"4 5"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "stylus"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "stylus"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "eraser"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "eraser"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "cursor"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "cursor"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "Device"
	Identifier	"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Driver		"i810"
	BusID		"PCI:0:2:0"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync	28-51
	VertRefresh	59.9-60.1
	# 1440x900 @ 60 Hz (GTF) hsync: 55.92 kHz; pclk: 106.47 MHz
        Modeline "1440x900_60"  106.47  1440 1520 1672 1904  900 901 904 932  -HSync +Vsync
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Monitor		"Generic Monitor"
	DefaultDepth	16
	SubSection "Display"
		Depth		1
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1440x900" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"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 appreciate the effort. I'm sure we must be getting closer to figuring this out. Anyone have any ideas for what to try next?
 
Old 10-20-2007, 04:32 PM   #7
jschiwal
LQ Guru
 
Registered: Aug 2001
Location: Fargo, ND
Distribution: SuSE AMD64
Posts: 15,733

Rep: Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682
Add the new resolution to the modes lines:
Code:
SubSection "Display"
		Depth		1
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
        ...
This has been suggested twice already.
Adding the ModeLine in the monitor section defines that resolution, the same way a "[Modelines]" section would, but you still need to add it to the "[Screen]" section's modes entries.
 
Old 10-20-2007, 04:45 PM   #8
e^(i*pi)
LQ Newbie
 
Registered: Feb 2007
Location: Louisville, KY
Distribution: Ubuntu
Posts: 14

Original Poster
Rep: Reputation: 0
OK, I went through and added the resolution to each of the mode lines. I restarted X and still nothing so far. Here is the file again.

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ExplorerPS/2"
	Option		"ZAxisMapping"		"4 5"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "stylus"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "stylus"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "eraser"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "eraser"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "cursor"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "cursor"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "Device"
	Identifier	"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Driver		"i810"
	BusID		"PCI:0:2:0"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync	28-51
	VertRefresh	59.9-60.1
	# 1440x900 @ 60 Hz (GTF) hsync: 55.92 kHz; pclk: 106.47 MHz
        Modeline "1440x900_60"  106.47  1440 1520 1672 1904  900 901 904 932  -HSync +Vsync
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Monitor		"Generic Monitor"
	DefaultDepth	16
	SubSection "Display"
		Depth		1
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1440x900_60" "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
See anything else missing?
 
Old 10-20-2007, 05:51 PM   #9
pixellany
LQ Veteran
 
Registered: Nov 2005
Location: Annapolis, MD
Distribution: Mint
Posts: 17,809

Rep: Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743Reputation: 743
We've all been staring at this and missing a key thing: The Horiz scan is too low!!

I found the manual for this monitor--it specifies: H: 30-81, V: 56-75

Also, If you like math, you'll note that a pixel clock of 100MHz, with 1400 pixels across ==> ~75KHz scan rate.

So change the horiz scan, and it should work. (vert should be OK the way it is.)

Also:

I don't understand this:
Quote:
SubSection "Display"
Depth 16
Modes "1440x900_60" "1024x768" "800x600" "640x480"
EndSubSection
The first entry is what you see in a Modeline. I have **never** seen it in Modes. I would just have "1440x900"
 
Old 10-20-2007, 08:51 PM   #10
jschiwal
LQ Guru
 
Registered: Aug 2001
Location: Fargo, ND
Distribution: SuSE AMD64
Posts: 15,733

Rep: Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682
Quote:
Originally Posted by pixellany View Post
I don't understand this:
SubSection "Display"
Depth 16
Modes "1440x900_60" "1024x768" "800x600" "640x480"
EndSubSection

The first entry is what you see in a Modeline. I have **never** seen it in Modes. I would just have "1440x900"
The entry in the Modes lines needs to match the name in the modeline that is given in the Screen section. You could name it "snoopy" if you wanted to but that wouldn't make much sense!
Last edited by jschiwal; 10-20-2007 at 08:54 PM.
 
Old 10-21-2007, 01:10 AM   #11
e^(i*pi)
LQ Newbie
 
Registered: Feb 2007
Location: Louisville, KY
Distribution: Ubuntu
Posts: 14

Original Poster
Rep: Reputation: 0
Well, I am making some progress. I have been tinkering around with you suggestions, and I have gotten a higher resolution. The problem now is that depending on what I set my veritcal and horizontal rates to, I get either too low or too high or a res. It seems to be stuck at 1024x768 until I up the horizontal, then it suddenly jumps to 1280x1024 with an option for 1600x1200. I've played around the numbers quite a bit, moving the ranges up and down slightly and the same thing happens. here is my current file, and the resolution here is 1280x1024.

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ExplorerPS/2"
	Option		"ZAxisMapping"		"4 5"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "stylus"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "stylus"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "eraser"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "eraser"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "InputDevice"
  Driver        "wacom"
  Identifier    "cursor"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "cursor"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

Section "Device"
	Identifier	"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Driver		"i810"
	BusID		"PCI:0:2:0"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync	65-81
	VertRefresh	56-75
	# 1440x900 @ 60 Hz (GTF) hsync: 55.92 kHz; pclk: 106.47 MHz
        Modeline "1440x900_60"  106.47  1440 1520 1672 1904  900 901 904 932  -HSync +Vsync
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Monitor		"Generic Monitor"
	DefaultDepth	16
	SubSection "Display"
		Depth		1
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1440x900_60" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1440x900_60" "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 feel like we are almost there.
 
Old 10-21-2007, 02:46 AM   #12
jschiwal
LQ Guru
 
Registered: Aug 2001
Location: Fargo, ND
Distribution: SuSE AMD64
Posts: 15,733

Rep: Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682
I don't know if this will help, but here is a link to an Ubuntu user who is using the same monitor and posted part of his xorg.conf file.
http://ubuntuforums.org/showthread.php?t=280683&page=3

Code:
	HorizSync 	30.0 - 82.0
	VertRefresh 	50.0 - 85.0
	Option		"DPMS"
	Modeline 	"1440x900_70.00" 126.98 1440 1536 1688 1936 900 901 904 937 -HSync +Vsync
	Modeline 	"1440x900_60.00" 106.47 1440 1520 1672 1904 900 901 904 932 -HSync +Vsync
	DisplaySize 	1440 900
Maybe this Sync rates will help.

However, I wonder if there may be a problem with the video controller as well. Mention was made about patching i845 but this was before the problem was resolved.
Last edited by jschiwal; 10-21-2007 at 02:48 AM.
 
  


Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wrong Widescreen Monitor Resolution kirkbystag Linux - Hardware 3 12-17-2008 02:30 PM
Unable to modify monitor resolution sfzab SUSE / openSUSE 1 06-18-2007 02:12 PM
Unable to obtain IP from AP. unreal128 Linux - Wireless Networking 2 08-30-2006 06:21 PM
Unable to change monitor resolution in Debian adityavpratap Debian 1 10-04-2005 10:25 AM
Unable to Increase Monitor Resolution latino Linux - Hardware 4 02-21-2005 06:26 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 03:55 AM.

Contact Us - Advertising Info - Rules - Privacy - LQ Merchandise - Donations - Contributing Member - LQ Sitemap -
Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration