xorg ignores screen resolution

d0wn_under · Posted: Sun Jun 06, 2004 11:07 pm Post subject: xorg ignores screen resolution

I am trying to get my Tosh tecra 8100 to run in 1024x768. I know that it can as I have had it running in that in windows 98 and I have read other people comments about it.

My problem is that I can only get it to 720 x 576.

Here is a snippet of my xorg.conf file:

Riftwing · Apprentice Joined: 06 Oct 2002 Posts: 293

Make sure your horizontal sync and vert refresh are correct.
_________________
Good, bad, I'm the guy with the gun. - Ash, Army of Darkness

Gorski · n00b Joined: 16 May 2004 Posts: 11

Following is what I had to add to get 1024x768 on my laptop LCD with the Savage driver:

d0wn_under · Posted: Mon Jun 07, 2004 9:11 am Post subject:

ok, I'll try that when I get home.

What about the driver I am using? Is there a better one to use than the generic when the chipset is 86C270-294?

Tried it and it worked like a treat! :-)

It had a range before, any ideas why it didn't use the figures you gave even though they were in that range?

-Craig- · Guru Joined: 03 Jun 2004 Posts: 333

@Gorski:

Thank you for posting this!
Works fine

alex6z · Tux's lil' helper Joined: 20 Jul 2005 Posts: 119

I've been having such a hard time with this too. Xorg seems to ignore the modes I tell it. In the Xorg.log.0 it keeps telling me that either the Hsync or Vsync is out of range. For example, it will get stuck in 1600x1200 and refuse to go into 640x480. The thing is, if I give a narrower range for Hsync, like just 31.5, it will get stuck in 640x480. I think what's happening is Xorg is choosing the highest possible Hsync or refreash rate and then tring to find all the refreash rates(or Hsyncs if it's going by maximum refreash rate) that go along with that. I guess I could use modelines, that's what RedHat did. Do I have a config issue or is Xorg just being dumb about it? I'll paste "$ grep -v '#' xorg.conf" .

Section "Module"

SubSection "extmod"
EndSubSection

Load "type1"
Load "freetype"
Load "glx"
Load "dri"

EndSection

Section "Files"

RgbPath "/usr/X11R6/lib/X11/rgb"
FontPath "/usr/share/fonts/misc/"
FontPath "/usr/share/fonts/TTF/"
FontPath "/usr/share/fonts/Type1/"
FontPath "/usr/share/fonts/75dpi/"
FontPath "/usr/share/fonts/100dpi/"
FontPath "/usr/share/fonts/local/"

EndSection
Section "ServerFlags"

Option "AllowDeactivateGrabs" "1"
Option "AllowClosedownGrabs" "1"

EndSection

Section "InputDevice"

Identifier "Keyboard1"
Driver "kbd"
Option "AutoRepeat" "500 30"
Option "XkbRules" "xorg"
Option "XkbModel" "pc102"
Option "XkbLayout" "us"

EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "PS/2"
Option "Device" "/dev/input/mice"

EndSection

Section "Monitor"

Identifier "v6e"
HorizSync 31.5
VertRefresh 40-75

EndSection

Section "Monitor"
Identifier "sam17"
Option "DPMS"
EndSection

Section "Device"
Identifier "Standard VGA"
VendorName "Unknown"
BoardName "Unknown"
Driver "vga"

EndSection

Section "Device"
Identifier "3drage"
Driver "ati"
Option "ForcePCIMode" "True"
Option "dpms"
EndSection

Section "Screen"
Identifier "Screen 1"
Device "3drage"
Monitor "v6e"
DefaultDepth 16

Subsection "Display"
Depth 8
Modes "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024 1024x768 800x600 640x480 640x400 320x240 320x200"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "640x480"
ViewPort 0 0
EndSubsection
EndSection

Section "ServerLayout"

Identifier "Simple Layout"
Screen "Screen 1
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection

Section "DRI"
Mode 0666
EndSection

alex6z · Tux's lil' helper Joined: 20 Jul 2005 Posts: 119

Oh, I don't have a HorizSync or VertRefreash because I seem to have seen in a post that Xorg will use DDC to figure it out from the monitor. Like this is't stuck in 640x480. If I put the specs of the monitor in it will go into 1600x1200 ignoring the 1280x1024 I have it set to go into.