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zekthedeadcow 09-16-2005 12:27 PM

X display won't fill screen - old laptop
Hi! I'm migrating back to slack and have just done a clean install of Slack 10.2 on an IBM Thinkad 760 that I picked up recently.

Everything i working great so far except one thing... when I try to configure or start X the srceen does not use all of it's availble space... so there is about an inch and a half border of unused screen around th display. The display is centered and inxvidtune I can only get 640x480 resolutions to appear. I am assumeing this is the problem. but I have no idea how to adjust this in xorg.conf...and trying to use settings from XF86Config made by others hasn't helped.

running xdpyinfo states that the dimensions for Screen 0 are 640x480 (217x163 milimeters) basically how do I change that to 800x600 :)

I initially installed slack 7.1 and it worked fine.

The laptop don't have network access yet so I can't post the config files.

recursv 09-16-2005 03:59 PM

I am currently having a very similar battle with my laptop except its doing "1152x768" instead of "1024x768" which is a good one. I was initially troubled by a limiting 640x480 as well and that was solved by setting the correct values for the monitor and screen section's in the xorg.conf. Something similar to the following could do. Check the sync and refresh rates before using these ones.

Section "Monitor"
Identifier "Monitor0"
VendorName "Whatever"
ModelName "LCD"
HorizSync 31.5 - 48.5
VertRefresh 40.0 - 60.0

Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "800x600" "640x480"

Hope that helps

zekthedeadcow 09-16-2005 06:01 PM

nope... no luck

infact in xvidtune when I click "show" it displayes a modeline for 640x480...which isn't in either of the xorg.conf files (/etc/X11/ and /usr/X11R6/lib/X11/) both of which should have a modeline for 800x600

I'm not terribly concerned... as the laptop is only going to do wordprocessing, and basic coding (I only managed to eek 300MB free after install and removing some with pkgtool)

linuxles 09-16-2005 06:27 PM

I believe you have to set the framebuffer value for the LCD in the kernel boot parameters.

First make sure that Framebuffer and Vesa support is built into the kernel.

Then, set the framebuffer value in the kernel boot options.

For Grub; try vga=788

For Lilo; try vga=0x314


color    depth  |  640x480  800x600  1024x768 1280x1024
256      (8bit)  |    769      771      773    775
32000    (15bit) |    784      787      790    793
65000    (16bit) |    785      788      791    794
16.7 Mil. (24bit) |    786      789      792    795

Colours  640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200
 4 bits |    ?      ?    0x302      ?        ?        ?        ?
 8 bits |  0x300  0x301  0x303    0x305    0x161    0x307    0x31C
15 bits |    ?    0x310  0x313    0x316    0x162    0x319    0x31D
16 bits |    ?    0x311  0x314    0x317    0x163    0x31A    0x31E
24 bits |    ?    0x312  0x315    0x318      ?      0x31B    0x31F
32 bits |    ?      ?      ?        ?      0x164      ?

For Grub; add the comment to the end of the kernel boot line in menu.1st.
-- (ie: kernel /vmlinuz-version ro root=/dev/sdaX vga=788)

For Lilo; just uncomment the line or put it on a line by itself in lilo.conf.
-- Note: A slack box I have access to has the following in the lilo.conf file:
-- # VESA framebuffer console @ 800x600x64k
-- # vga=788
So it's possible that you may be able to use the 788 value for lilo too...


dannyl 09-18-2005 09:26 PM

I've been running slack 10.1 on the same machine since it was first released. The problem seems to be with xorg. The video card in this system is not well supported. As root, run the xorg config make all the appropriate settings for monitor etc, select sixteen bit 800X600 and you should get the screen filled out. I'll try to post my xorg.conf file when I get it back up and running. I'm currently trying to learn how to compile a custom kernel (with not much luck I might add). The color scheme is really terrible, but I only use this laptop for reading email at work and for practicing new things with linux. One other item of note, KDE is a resource hog for video apparently. Firefox and Thunderbird both look terrible if I use KDE (practically unreadable) so I switched to XFCE for the desktop. Not as easy to add programs and no desktop Icons, but it works for what I do.

Hope this helps.

interndan 09-19-2005 02:39 PM

Here is my xorg.conf file. This is the only way I have been able to get X to work full screen on my IBM 760XL. Note 8 bit color depth. Also I have never been able to get framebuffers to work on this system

# File generated by xorgconfig.

# Copyright 2004 The X.Org Foundation
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# Except as contained in this notice, the name of The X.Org Foundation shall
# not be used in advertising or otherwise to promote the sale, use or other
# dealings in this Software without prior written authorization from
# The X.Org Foundation.

# **********************************************************************
# Refer to the xorg.conf(5x) man page for details about the format of
# this file.
# **********************************************************************

# **********************************************************************
# Module section -- this section is used to specify
# which dynamically loadable modules to load.
# **********************************************************************
Section "Module"

# This loads the DBE extension module.

Load "dbe" # Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
SubSection "extmod"
Option "omit xfree86-dga" # don't initialise the DGA extension

# This loads the font modules
Load "type1"
# Load "speedo"
Load "freetype"
# Load "xtt"

# This loads the GLX module
Load "glx"
# This loads the DRI module
# Load "dri"


# **********************************************************************
# Files section. This allows default font and rgb paths to be set
# **********************************************************************

Section "Files"

# The location of the RGB database. Note, this is the name of the
# file minus the extension (like ".txt" or ".db"). There is normally
# no need to change the default.

RgbPath "/usr/X11R6/lib/X11/rgb"

# Multiple FontPath entries are allowed (which are concatenated together),
# as well as specifying multiple comma-separated entries in one FontPath
# command (or a combination of both methods)

FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/TTF/"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
FontPath "/usr/X11R6/lib/X11/fonts/CID/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/local/"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/cyrillic/"

# The module search path. The default path is shown here.

# ModulePath "/usr/X11R6/lib/modules"


# **********************************************************************
# Server flags section.
# **********************************************************************

Section "ServerFlags"

# Uncomment this to cause a core dump at the spot where a signal is
# received. This may leave the console in an unusable state, but may
# provide a better stack trace in the core dump to aid in debugging

# Option "NoTrapSignals"

# Uncomment this to disable the <Crtl><Alt><Fn> VT switch sequence
# (where n is 1 through 12). This allows clients to receive these key
# events.

# Option "DontVTSwitch"

# Uncomment this to disable the <Crtl><Alt><BS> server abort sequence
# This allows clients to receive this key event.

# Option "DontZap"

# Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode switching
# sequences. This allows clients to receive these key events.

# Option "Dont Zoom"

# Uncomment this to disable tuning with the xvidtune client. With
# it the client can still run and fetch card and monitor attributes,
# but it will not be allowed to change them. If it tries it will
# receive a protocol error.

# Option "DisableVidModeExtension"

# Uncomment this to enable the use of a non-local xvidtune client.

# Option "AllowNonLocalXvidtune"

# Uncomment this to disable dynamically modifying the input device
# (mouse and keyboard) settings.

# Option "DisableModInDev"

# Uncomment this to enable the use of a non-local client to
# change the keyboard or mouse settings (currently only xset).

# Option "AllowNonLocalModInDev"


# **********************************************************************
# Input devices
# **********************************************************************

# **********************************************************************
# Core keyboard's InputDevice section
# **********************************************************************

Section "InputDevice"

Identifier "Keyboard1"
Driver "kbd"

# For most OSs the protocol can be omitted (it defaults to "Standard").
# When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
# uncomment the following line.

# Option "Protocol" "Xqueue"

Option "AutoRepeat" "500 30"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
# Option "Xleds" "1 2 3"

# Option "LeftAlt" "Meta"
# Option "RightAlt" "ModeShift"

# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults). For example, for a non-U.S.
# keyboard, you will probably want to use:
# Option "XkbModel" "pc105"
# If you have a US Microsoft Natural keyboard, you can use:
# Option "XkbModel" "microsoft"
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
# Option "XkbLayout" "de"
# or:
# Option "XkbLayout" "de"
# Option "XkbVariant" "nodeadkeys"
# If you'd like to switch the positions of your capslock and
# control keys, use:
# Option "XkbOptions" "ctrl:swapcaps"

# These are the default XKB settings for Xorg
# Option "XkbRules" "xorg"
# Option "XkbModel" "pc105"
# Option "XkbLayout" "us"
# Option "XkbVariant" ""
# Option "XkbOptions" ""

# Option "XkbDisable"

Option "XkbRules" "xorg"
Option "XkbModel" "pc101"
Option "XkbLayout" "us"


# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "PS/2"
Option "Device" "/dev/mouse"

# Mouse-speed setting for PS/2 mouse.

# Option "Resolution" "256"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

# Option "Protocol" "Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

# Option "BaudRate" "9600"
# Option "SampleRate" "150"

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

Option "Emulate3Buttons"
# Option "Emulate3Timeout" "50"

# ChordMiddle is an option for some 3-button Logitech mice

# Option "ChordMiddle"


# **********************************************************************
# Other input device sections
# this is optional and is required only if you
# are using extended input devices. This is for example only. Refer
# to the xorg.conf man page for a description of the options.
# **********************************************************************
# Section "InputDevice"
# Identifier "Mouse2"
# Driver "mouse"
# Option "Protocol" "MouseMan"
# Option "Device" "/dev/mouse2"
# EndSection
# Section "InputDevice"
# Identifier "spaceball"
# Driver "magellan"
# Option "Device" "/dev/cua0"
# EndSection
# Section "InputDevice"
# Identifier "spaceball2"
# Driver "spaceorb"
# Option "Device" "/dev/cua0"
# EndSection
# Section "InputDevice"
# Identifier "touchscreen0"
# Driver "microtouch"
# Option "Device" "/dev/ttyS0"
# Option "MinX" "1412"
# Option "MaxX" "15184"
# Option "MinY" "15372"
# Option "MaxY" "1230"
# Option "ScreenNumber" "0"
# Option "ReportingMode" "Scaled"
# Option "ButtonNumber" "1"
# Option "SendCoreEvents"
# EndSection
# Section "InputDevice"
# Identifier "touchscreen1"
# Driver "elo2300"
# Option "Device" "/dev/ttyS0"
# Option "MinX" "231"
# Option "MaxX" "3868"
# Option "MinY" "3858"
# Option "MaxY" "272"
# Option "ScreenNumber" "0"
# Option "ReportingMode" "Scaled"
# Option "ButtonThreshold" "17"
# Option "ButtonNumber" "1"
# Option "SendCoreEvents"
# EndSection

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

Identifier "My Monitor"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.

HorizSync 31.5 - 48.5

# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.

VertRefresh 50-90


# **********************************************************************
# Graphics device section
# **********************************************************************

# Any number of graphics device sections may be present

# Standard VGA Device:

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

# The chipset line is optional in most cases. It can be used to override
# the driver's chipset detection, and should not normally be specified.

# Chipset "generic"

# The Driver line must be present. When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module. Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

Driver "vga"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for. When this line isn't present, a device
# section can only match up with the primary video device. For PCI
# devices a line like the following could be used. This line should not
# normally be included unless there is more than one video device
# intalled.

# BusID "PCI:0:10:0"

# VideoRam 256

# Clocks 25.2 28.3


# Device configured by xorgconfig:

Section "Device"
Identifier "Trident Cyber 9382 (generic)"
Driver "trident"
#VideoRam 1024
# Insert Clocks lines here if appropriate

# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present. Each describes
# the configuration of a single screen. A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
Identifier "Screen 1"
Device "Trident Cyber 9382 (generic)"
Monitor "My Monitor"
DefaultDepth 8

Subsection "Display"
Depth 8
Modes "800x600"
ViewPort 0 0
Subsection "Display"
Depth 16
Modes "800x600" "640x480"
ViewPort 0 0
Subsection "Display"
Depth 24
Modes "640x480"
ViewPort 0 0

# **********************************************************************
# ServerLayout sections.
# **********************************************************************

# Any number of ServerLayout sections may be present. Each describes
# the way multiple screens are organised. A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option. In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
Identifier "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens. The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen. In this example, screen 2 is located to the
# right of screen 1.

Screen "Screen 1"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used. Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"


# Section "DRI"
# Mode 0666
# EndSection

zekthedeadcow 09-27-2005 12:22 PM

I aologize for taking so long to get back but I've been working post audio on an indie movie with a deadline of today :)

I still have this problem but it's more than what I thought it was... I'm certain that the issue isn't with X now because I just realized that it apears in console too.. ie console text doesn't reach the edge of the screen. Apparently I can't get framebuffers to offer anything other than 640x480 and if I install lilo with an 800x600 display on the next reboot it will ask for a new display and only offer 640x480 options. BIOS video tests indicate that 800x600 should work. I've been trying to recompile the kernel to see if thats the issue but that has not been wanting to work.

interndan 09-27-2005 04:41 PM

The IBM 760 has a weird setting in bios that causes the console to come up in 600x480 with a small display centered in the monitor. While the card should do 800x600 at 16 bit color depth, XORG defaults to 64K colors in 16 bit mode which is higher than the card will do, so the system defaults to 640x480. The video card should be able to do 16 bit 32K colors, but I have found no way to make XORG accept that color depth. The only way I have been able to get 800X600 is set 8 bit color depth as default. Copy the above xorg.conf file into your xorg.conf and it should then come up in 800x600. However the colors are really crappy, especially if you use KDE. The menu bars in Firefox, etc are practically unreadable. I switched desktop to XFCE and at least now it is useable for what I do with this computer. Konquerer works fairly well if you wish to use KDE, but it is still missing somethings I like in Firefox.

As an addittion, I just finished upgrading this system to Slack 10.2 with 2.6.13 kernel. It didn't help any with screen resolution, but it works quite well otherwise. I'm still experimenting with the new OS, but sound works. I did a full install so it used up over half of my hard drive, but mostly what I do on this computer is check mail at work and try to teach myself about Linux as time allows.

Hope this helps. Post back if not and I'll try to help some more.

P.S. Framebuffers don't seem to work well either and I get a BIOS error 0x99 each time I boot up

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