[ale] Low-Res X Problem
Jeff Hubbs
jhubbs at telocity.com
Sun Aug 19 20:09:29 EDT 2001
I just put Red Hat 7.1 (XFree86 4.0.3) on a 486 with a 512KB Trident
TVGA8900B-based ISA-bus video card. The XF86Config file below is the
output of Xconfigurator. I am selecting 640x480 with 8 bpp (by design -
the monitor won't go past that resolution and I get blank screens and a
timeout in Xconfigurator at any higher bpp.
Here is basically what I see: the top half of the screen is black. A
truncated X display appears in the bottom half at a ridiculously low
resolution but at a proper X-Y proportion. The resolution looks like it
might be 320x??? (imagine an "X" cursor ~3/4" across on a 14" monitor).
The mouse pointer appears to move upwards into the black area but moves
downwards only as far as the point where I see just the tip of the arrow
at the bottom of the screen (i.e., just what you'd expect).
I see the part in XF86Config where the comments say "Low-res Doublescan
modes / If your chipset does not support doublescan, you get a
'squashed' / resolution like 320x400", but I don't have a good feel as
to how to fix the problem.
I don't think this problem is terribly related to the type of card
because I had the exact same problem on another machine when I was
trying to specify the same resolution using the same distro.
Thanks,
- Jeff
# File generated by XConfigurator.
# **********************************************************************
# Refer to the XF86Config(4/5) man page for details about the format of
# this file.
# **********************************************************************
# **********************************************************************
# 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 (they are concatenated together)
# By default, Red Hat 6.0 and later now use a font server independent of
# the X server to render fonts.
FontPath "unix/:7100"
EndSection
# **********************************************************************
# 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
#NoTrapSignals
# Uncomment this to disable the <Crtl><Alt><BS> server abort
sequence
# This allows clients to receive this key event.
#DontZap
# Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode
switching
# sequences. This allows clients to receive these key events.
#DontZoom
EndSection
# **********************************************************************
# Input devices
# **********************************************************************
# **********************************************************************
# Keyboard section
# **********************************************************************
Section "Keyboard"
Protocol "Standard"
# when using XQUEUE, comment out the above line, and uncomment the
# following line
#Protocol "Xqueue"
AutoRepeat 500 5
# Let the server do the NumLock processing. This should only be
# required when using pre-R6 clients
#ServerNumLock
# Specify which keyboard LEDs can be user-controlled (eg, with
xset(1))
#Xleds 1 2 3
#To set the LeftAlt to Meta, RightAlt key to ModeShift,
#RightCtl key to Compose, and ScrollLock key to ModeLock:
LeftAlt Meta
RightAlt Meta
ScrollLock Compose
RightCtl Control
# To disable the XKEYBOARD extension, uncomment XkbDisable.
# XkbDisable
# 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:
# XkbModel "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
# XkbModel "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
# XkbLayout "de"
# or:
# XkbLayout "de"
# XkbVariant "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
# XkbOptions "ctrl:swapcaps"
# These are the default XKB settings for XFree86
# XkbRules "xfree86"
# XkbModel "pc101"
# XkbLayout "us"
# XkbVariant ""
# XkbOptions ""
XkbKeycodes "xfree86"
XkbTypes "default"
XkbCompat "default"
XkbSymbols "us(pc101)"
XkbGeometry "pc"
XkbRules "xfree86"
XkbModel "pc101"
XkbLayout "us"
EndSection
# **********************************************************************
# Pointer section
# **********************************************************************
Section "Pointer"
Protocol "PS/2"
Device "/dev/mouse"
# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.
# Protocol "Xqueue"
# Baudrate and SampleRate are only for some Logitech mice
# BaudRate 9600
# SampleRate 150
# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)
Emulate3Buttons
Emulate3Timeout 50
# ChordMiddle is an option for some 3-button Logitech mice
# ChordMiddle
EndSection
# **********************************************************************
# Monitor section
# **********************************************************************
# Any number of monitor sections may be present
Section "Monitor"
Identifier "Generic Standard VGA, 640x480 @ 60 Hz"
VendorName "Unknown"
ModelName "Unknown"
# 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.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.
HorizSync 31.5
# 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.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.
VertRefresh 50-61
# Modes can be specified in two formats. A compact one-line format, or
# a multi-line format.
# These two are equivalent
# ModeLine "1024x768i" 45 1024 1048 1208 1264 768 776 784 817
Interlace
# Mode "1024x768i"
# DotClock 45
# HTimings 1024 1048 1208 1264
# VTimings 768 776 784 817
# Flags "Interlace"
# EndMode
# This is a set of standard mode timings. Modes that are out of monitor
spec
# are automatically deleted by the server (provided the HorizSync and
# VertRefresh lines are correct), so there's no immediate need to
# delete mode timings (unless particular mode timings don't work on your
# monitor). With these modes, the best standard mode that your monitor
# and video card can support for a given resolution is automatically
# used.
# 512x384 @ 78 Hz, 31.50 kHz hsync
Modeline "512x384" 20.160 512 528 592 640 384 385 388 404
-HSync -VSync
# 512x384 @ 85 Hz, 34.38 kHz hsync
Modeline "512x384" 22 512 528 592 640 384 385 388 404
-HSync -VSync
# 640x400 @ 70 Hz, 31.5 kHz hsync
Modeline "640x400" 25.175 640 664 760 800 400 409 411 450
# 640x400 @ 85 Hz, 37.86 kHz hsync
Modeline "640x400" 31.5 640 672 736 832 400 401 404 445
-HSync +VSync
# 640x480 @ 100 Hz, 53.01 kHz hsync
Modeline "640x480" 45.8 640 672 768 864 480 488 494 530
-HSync -VSync
# 640x480 @ 60 Hz, 31.5 kHz hsync
Modeline "640x480" 25.175 640 664 760 800 480 491 493 525
# 640x480 @ 72 Hz, 36.5 kHz hsync
Modeline "640x480" 31.5 640 680 720 864 480 488 491 521
# 640x480 @ 75 Hz, 37.50 kHz hsync
ModeLine "640x480" 31.5 640 656 720 840 480 481 484 500
-HSync -VSync
# 640x480 @ 85 Hz, 43.27 kHz hsync
Modeline "640x480" 36 640 696 752 832 480 481 484 509
-HSync -VSync
# 800x600 @ 100 Hz, 64.02 kHz hsync
Modeline "800x600" 69.65 800 864 928 1088 600 604 610 640
-HSync -VSync
# 800x600 @ 56 Hz, 35.15 kHz hsync
ModeLine "800x600" 36 800 824 896 1024 600 601 603 625
# 800x600 @ 60 Hz, 37.8 kHz hsync
Modeline "800x600" 40 800 840 968 1056 600 601 605 628
+hsync +vsync
# 800x600 @ 72 Hz, 48.0 kHz hsync
Modeline "800x600" 50 800 856 976 1040 600 637 643 666
+hsync +vsync
# 800x600 @ 85 Hz, 55.84 kHz hsync
Modeline "800x600" 60.75 800 864 928 1088 600 616 621 657
-HSync -VSync
# 1024x480 for certain Vaios
Modeline "1024x480" 65 1024 1032 1176 1344 480 491 493 525 -HSync
-VSync
# 1024x768 @ 100Hz, 80.21 kHz hsync
Modeline "1024x768" 115.5 1024 1056 1248 1440 768 771 781 802
-HSync -VSync
# 1024x768 @ 60 Hz, 48.4 kHz hsync
Modeline "1024x768" 65 1024 1032 1176 1344 768 771 777 806
-hsync -vsync
# 1024x768 @ 70 Hz, 56.5 kHz hsync
Modeline "1024x768" 75 1024 1048 1184 1328 768 771 777 806
-hsync -vsync
# 1024x768 @ 76 Hz, 62.5 kHz hsync
Modeline "1024x768" 85 1024 1032 1152 1360 768 784 787 823
# 1024x768 @ 85 Hz, 70.24 kHz hsync
Modeline "1024x768" 98.9 1024 1056 1216 1408 768 782 788 822 -HSync
-VSync
# 1152x864 @ 100 Hz, 89.62 kHz hsync
Modeline "1152x864" 137.65 1152 1184 1312 1536 864 866 885 902
-HSync -VSync
# 1152x864 @ 60 Hz, 53.5 kHz hsync
Modeline "1152x864" 89.9 1152 1216 1472 1680 864 868 876 892
-HSync -VSync
# 1152x864 @ 70 Hz, 62.4 kHz hsync
Modeline "1152x864" 92 1152 1208 1368 1474 864 865 875 895
# 1152x864 @ 78 Hz, 70.8 kHz hsync
Modeline "1152x864" 110 1152 1240 1324 1552 864 864 876 908
# 1152x864 @ 84 Hz, 76.0 kHz hsync
Modeline "1152x864" 135 1152 1464 1592 1776 864 864 876 908
# 1280x960 @ 60 HzModeline "1280x960" 108 1280 1376 1488 1800 960
961 964 1000 +HSync +VSync
# 1280x960 @ 85 HzModeline "1280x960" 148.5 1280 1344 1504 1728 960
961 964 1011 +HSync +VSync
# 1280x1024 @ 100 Hz, 107.16 kHz hsync
Modeline "1280x1024" 181.75 1280 1312 1440 1696 1024 1031 1046 1072
-HSync -VSync
# 1280x1024 @ 61 Hz, 64.2 kHz hsync
Modeline "1280x1024" 110 1280 1328 1512 1712 1024 1025 1028 1054
# 1280x1024 @ 70 Hz, 74.59 kHz hsync
Modeline "1280x1024" 126.5 1280 1312 1472 1696 1024 1032 1040 1068
-HSync -VSync
# 1280x1024 @ 74 Hz, 78.85 kHz hsync
Modeline "1280x1024" 135 1280 1312 1456 1712 1024 1027 1030 1064
# 1280x1024 @ 76 Hz, 81.13 kHz hsync
Modeline "1280x1024" 135 1280 1312 1416 1664 1024 1027 1030 1064
# 1280x1024 @ 85 Hz, 91.15 kHz hsync
Modeline "1280x1024" 157.5 1280 1344 1504 1728 1024 1025 1028 1072
+HSync +VSync
# 1400x1050 @ 60Hz, 65.8 kHz hsync
Modeline "1400x1050" 129 1400 1464 1656 1960 1050 1051 1054 1100
+HSync +VSync
# 1400x1050 @ 70Hz, 76.8 kHz hsync
Modeline "1400x1050" 151 1400 1464 1656 1960 1050 1051 1054 1100
+HSync +VSync
# 1400x1050 @ 75Hz, 82.3 kHz hsync
Modeline "1400x1050" 162 1400 1464 1656 1960 1050 1051 1054 1100
+HSync +VSync
# 1400x1050 @ 85Hz, 93.2 kHz hsync
Modeline "1400x1050" 184 1400 1464 1656 1960 1050 1051 1054 1100
+HSync +VSync
# 1600x1200 @ 60Hz, 75.00 kHz hsync
Modeline "1600x1200" 162 1600 1664 1856 2160 1200 1201 1204 1250
+HSync +VSync
# 1600x1200 @ 70 Hz, 87.50 kHz hsync
Modeline "1600x1200" 189 1600 1664 1856 2160 1200 1201 1204 1250
-HSync -VSync
# 1600x1200 @ 75 Hz, 93.75 kHz hsync
Modeline "1600x1200" 202.5 1600 1664 1856 2160 1200 1201 1204 1250
+HSync +VSync
# 1600x1200 @ 85 Hz, 105.77 kHz hsync
Modeline "1600x1200" 220 1600 1616 1808 2080 1200 1204 1207 1244
+HSync +VSync
# 1800x1440 @ 64Hz, 96.15 kHz hsync
ModeLine "1800X1440" 230 1800 1896 2088 2392 1440 1441 1444 1490
+HSync +VSync
# 1800x1440 @ 70Hz, 104.52 kHz hsync
ModeLine "1800X1440" 250 1800 1896 2088 2392 1440 1441 1444 1490
+HSync +VSync
# Low-res Doublescan modes
# If your chipset does not support doublescan, you get a 'squashed'
# resolution like 320x400.
# 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio
Modeline "320x200" 12.588 320 336 384 400 200 204 205 225
Doublescan
# 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio
Modeline "320x240" 12.588 320 336 384 400 240 245 246 262
Doublescan
# 320x240 @ 72 Hz, 36.5 kHz hsync
Modeline "320x240" 15.750 320 336 384 400 240 244 246 262
Doublescan
# 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio
ModeLine "400x300" 18 400 416 448 512 300 301 302 312
Doublescan
# 400x300 @ 60 Hz, 37.8 kHz hsync
Modeline "400x300" 20 400 416 480 528 300 301 303 314
Doublescan
# 400x300 @ 72 Hz, 48.0 kHz hsync
Modeline "400x300" 25 400 424 488 520 300 319 322 333
Doublescan
# 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio
ModeLine "480x300" 21.656 480 496 536 616 300 301 302 312
Doublescan
# 480x300 @ 60 Hz, 37.8 kHz hsync
Modeline "480x300" 23.890 480 496 576 632 300 301 303 314
Doublescan
# 480x300 @ 63 Hz, 39.6 kHz hsync
Modeline "480x300" 25 480 496 576 632 300 301 303 314
Doublescan
# 480x300 @ 72 Hz, 48.0 kHz hsync
Modeline "480x300" 29.952 480 504 584 624 300 319 322 333
Doublescan
EndSection
# **********************************************************************
# Graphics device section
# **********************************************************************
# Any number of graphics device sections may be present
Section "Device"
Identifier "Generic VGA"
VendorName "Unknown"
BoardName "Unknown"
Chipset "generic"
# VideoRam 256
# Clocks 25.2 28.3
EndSection
# Device configured by Xconfigurator:
Section "Device"
Identifier "My Video Card"
VendorName "Unknown"
BoardName "Unknown"
#VideoRam 512
# Insert Clocks lines here if appropriate
EndSection
# **********************************************************************
# Screen sections
# **********************************************************************
# The Colour SVGA server
Section "Screen"
Driver "svga"
# Use Device "Generic VGA" for Standard VGA 320x200x256
#Device "Generic VGA"
Device "My Video Card"
Monitor "Generic Standard VGA, 640x480 @ 60 Hz"
DefaultColorDepth 8
Subsection "Display"
Depth 8
# Omit the Modes line for the "Generic VGA" device
Modes "640x480"
ViewPort 0 0
EndSubsection
EndSection
# The 16-color VGA server
Section "Screen"
Driver "vga16"
Device "Generic VGA"
Monitor "Generic Standard VGA, 640x480 @ 60 Hz"
Subsection "Display"
Modes "640x480" "800x600"
ViewPort 0 0
EndSubsection
EndSection
# The Mono server
Section "Screen"
Driver "vga2"
Device "Generic VGA"
Monitor "Generic Standard VGA, 640x480 @ 60 Hz"
Subsection "Display"
Modes "640x480" "800x600"
ViewPort 0 0
EndSubsection
EndSection
# The accelerated servers (S3, Mach32, Mach8, 8514, P9000, AGX, W32,
Mach64
# I128, and S3V)
Section "Screen"
Driver "accel"
Device "My Video Card"
Monitor "Generic Standard VGA, 640x480 @ 60 Hz"
DefaultColorDepth 8
Subsection "Display"
Depth 8
Modes "640x480"
ViewPort 0 0
EndSubsection
EndSection
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