[plamo:23172] 液晶ディスプレーのちらつき

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[plamo:23172] 液晶ディスプレーのちらつき

From:Hideyoshi ARAKIDA
Date:Thu, 15 Jul 2004 22:28:15 +0900 (JST)
Subject: [plamo:23172] 液晶ディスプレーのちらつき
From: Hideyoshi ARAKIDA <h.arakida@xxxxxxxxx>
Date: Thu, 15 Jul 2004 22:28:15 +0900 (JST)
Organization: NAOJ/PRC
荒木田と申します．

iiyama の液晶ディスプレー ProLite H540S 

http://iiyama-sales.com/eshop/index?c=shop&p=C13&tg=00052516_1

を導入したのですが，画面のちらつきが解消できずに困っています．

具体的には，ディスプレーの電源をいれてから，しばらくはちらつきが
さほど気にならないのですが，時間が経つにつれ(ディスプレーの温度が
あがるにつれ？)画面のちらつきが気になるようになります．
数秒間隔で，ちらつきが画面の下から上にむかって波のように動いていきます．

環境：
	Plamo Linux 3.3
	XFree86 4.3
	Matrox G550 (D-Sub接続)

X の設定は DefaultDepth 24，Modes "1280x1024" の状態で，
水平同期，と垂直同期はマニュアルの追随範囲にしたがって
HorizSync 24-80，VertRefresh 56-85，そして Option "AGPMode" "4" 
としています．この設定の時，ちらつきは最小に感じられます．

試して見たこと：

1. 
山内さんのところの液晶ディスプレーの設定のページ：

http://phe.phyas.aichi-edu.ac.jp/~cyamauch/pl2_xf86_vesa.html

から ModeLine をコピーして VertRefresh の記述のあとに
書き加えて見たところ，いくらか改善はしましたが，ちらつきは
消えませんでした．

2. 
ディスプレーの調節機能からフェイズ，クロックあたりをいろいろ
変えてみましたが，改善できませんでした．

3.
DefaultDepth を 16，24，Modes を 1600x1200，1280x1024，1024x768 の
組合せでいくつか試してみましたが，どの組合せでも画面のちらつきが
表れました．

4.
Option "AGPMode" "4" とすると．ちらつきがいくらか改善されました． 

長くなりますが，以下に XF86Config の関連すると思われる部分を
添付致します．何か策を御存じでしたら，検索のポインターでも結構ですので
教えて頂ければと思います．

よろしくお願い致します．

--
荒木田英禎

---------------------------------------------------------------------
# **********************************************************************
# 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
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

# This loads the Type1 and FreeType font modules
    Load        "type1"
    Load        "speedo"
#    Load        "freetype"
    Load        "xtt"

EndSection

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

Section "Files"

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

    FontPath   "/usr/X11R6/lib/X11/fonts/local/"
    FontPath   "/usr/X11R6/lib/X11/fonts/misc/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/Speedo/"
    FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath   "/usr/X11R6/lib/X11/fonts/ghostscript/"
    FontPath   "/usr/X11R6/lib/X11/fonts/TrueType/"
    FontPath   "/usr/X11R6/lib/X11/fonts/freefont/"
    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"
#    FontPath   "/usr/X11R6/lib/X11/fonts/local/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/sharefont/"

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

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

EndSection

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

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

Section "InputDevice"

    Identifier	"Keyboard1"
    Driver	"Keyboard"
#    Option     "Protocol"      "Xqueue"
    Option "AutoRepeat" "500 30"
    Option "XkbRules"	"xfree86"
    Option "XkbModel"	"pc101"
    Option "XkbLayout"	"us"

EndSection

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

Section "InputDevice"

    Identifier	"Mouse1"
    Driver	"mouse"
    Option "Protocol"    "IMPS/2"
    Option "Device"      "/dev/mouse"
    Option "ZAxisMapping"	"4 5"

EndSection

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

Section "Monitor"

    Identifier  "monitor"

    HorizSync	24-80 # iiyama
    VertRefresh	56-85 # iiyama

# Modeline for VESA
# [*Vesa_Monitor_@60Hz_(640X480X8.Z1)] 31.469 kHz HSync
Modeline "640x480"     25.175   640  648  752  800  480  490  492  525 -HSync -VSync 
# [*Vesa_Monitor_@60Hz_(800X600X8.Z1)] 37.879 kHz HSync
Modeline "800x600"     40.000   800  832  968 1056  600  601  605  628 +HSync +VSync 
# [*Vesa_Monitor_@60Hz_(1024X768X8.Z1)] 48.363 kHz HSync
Modeline "1024x768"     65.000  1024 1040 1184 1344  768  771  777  806 -HSync -VSync 
# [*Vesa_Monitor_@60Hz_(1280X1024X8.Z1)] 63.981 kHz HSync
Modeline "1280x1024"    108.000  1280 1320 1440 1688 1024 1025 1028 1066 +HSync +VSync 
# [*Vesa_Monitor_@60Hz_(1600X1200X8.Z1)] 75.000 kHz HSync
Modeline "1600x1200"    162.000  1600 1656 1856 2160 1200 1201 1204 1250 +HSync +VSync 
# [*Vesa_Monitor_@65Hz_(1600X1200X8.Z1)] 81.250 kHz HSync
Modeline "1600x1200"    175.500  1600 1656 1856 2160 1200 1201 1204 1250 +HSync +VSync 
# [*Vesa_Monitor_@70Hz_(1152X864X8.Z1)] 63.995 kHz HSync
Modeline "1152x864"     94.200  1152 1176 1280 1472  864  865  868  914 +HSync +VSync 
# [*Vesa_Monitor_@70Hz_(1600X1200X8.Z1)] 87.5 kHz HSync
Modeline "1600x1200"    189.000  1600 1656 1856 2160 1200 1201 1204 1250 +HSync +VSync 
# [*Vesa_Monitor_@70-72Hz_(640X480X8.Z1)] 37.861 kHz HSync
Modeline "640x480"     31.500   640  656  704  832  480  489  492  520 -HSync -VSync 
# [*Vesa_Monitor_@70-72Hz_(800X600X8.Z1)] 48.077 kHz HSync
Modeline "800x600"     50.000   800  848  976 1040  600  637  643  666 +HSync +VSync 
# [*Vesa_Monitor_@70-72Hz_(1024X768X8.Z1)] 56.476 kHz HSync
Modeline "1024x768"     75.000  1024 1040 1184 1328  768  771  777  806 -HSync -VSync 
# [*Vesa_Monitor_@75Hz_(1600X1200X8.Z1)] 93.75 kHz HSync
Modeline "1600x1200"    202.500  1600 1656 1856 2160 1200 1201 1204 1250 +HSync +VSync 
# [*Vesa_Monitor_@75Hz_(1280X1024X8.Z1)] 79.976 kHz HSync
Modeline "1280x1024"    135.000  1280 1288 1440 1688 1024 1025 1028 1066 +HSync +VSync 
# [*Vesa_Monitor_@75Hz_(1152X864X8.Z1)] 67.5 kHz HSync
Modeline "1152x864"    108.000  1152 1208 1344 1600  864  865  868  900 +HSync +VSync 
# [*Vesa_Monitor_@75Hz_(1024X768X8.Z1)] 60.023 kHz HSync
Modeline "1024x768"     78.750  1024 1032 1136 1312  768  769  772  800 +HSync +VSync 
# [*Vesa_Monitor_@75Hz_(800X600X8.Z1)] 46.875 kHz HSync
Modeline "800x600"     49.500   800  808  896 1056  600  601  604  625 +HSync +VSync 
# [*Vesa_Monitor_@75Hz_(640X480X8.Z1)] 37.500 kHz HSync
Modeline "640x480"     31.500   640  648  720  840  480  481  484  500 -HSync -VSync 
# [*Vesa_Monitor_@80Hz_(1600X1200X8.Z1)] 100.000 kHz HSync
Modeline "1600x1200"    216.000  1600 1656 1856 2160 1200 1201 1204 1250 +HSync +VSync 
# [*Vesa_Monitor_@85Hz_(1600X1200X8.Z1)] 106.25 kHz HSync
Modeline "1600x1200"    229.500  1600 1656 1856 2160 1200 1201 1204 1250 +HSync +VSync 
# [*Vesa_Monitor_@85Hz_(1280X1024X8.Z1)] 91.146 kHz HSync
Modeline "1280x1024"    157.500  1280 1336 1504 1728 1024 1025 1028 1072 +HSync +VSync 
# [*Vesa_Monitor_@85Hz_(1152X864X8.Z1)] 77.487 kHz HSync
Modeline "1152x864"    121.500  1152 1208 1344 1568  864  865  868  911 +HSync +VSync 
# [*Vesa_Monitor_@85Hz_(1024X768X8.Z1)] 68.677 kHz HSync
Modeline "1024x768"     94.500  1024 1064 1168 1376  768  769  772  808 +HSync +VSync 
# [*Vesa_Monitor_@85Hz_(800X600X8.Z1)] 53.674 kHz HSync
Modeline "800x600"     56.250   800  824  896 1048  600  601  604  631 +HSync +VSync 
# [*Vesa_Monitor_@85Hz_(640X480X8.Z1)] 43.269 kHz HSync
Modeline "640x480"     36.000   640  688  752  832  480  481  484  509 -HSync -VSync 
# [*Vesa_Monitor_@85Hz_(1024X768X8.Z1)] 68.677 kHz HSync
Modeline "1024x768"     94.500  1024 1064 1168 1376  768  769  772  808 +HSync +VSync

Modeline "1600x1200"    185.750  1600 1656 1856 2160 1200 1201 1204 1250 +HSync +VSync

EndSection

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

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

#    Chipset	"generic"
    Driver     "vga"
#    BusID      "PCI:0:10:0"
#    VideoRam	256
#    Clocks	25.2 28.3

EndSection

# Device configured by xf86config:

Section "Device"
    Identifier  "adaptor"
    Driver      "mga"
    VideoRam    32768
    Option      "AGPMode" "4"
# Option "mga_sdram"
    # Insert Clocks lines here if appropriate
EndSection

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

Section "Screen"
    Identifier  "Screen 1"
    Device      "adaptor"
    Monitor     "monitor"
    DefaultDepth 24

    Subsection "Display"
        Depth       8
        Modes       "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "1280x1024"
        ViewPort    0 0
    EndSubsection
EndSection

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

Section "ServerLayout"

# The Identifier line must be present
    Identifier  "Simple Layout"
    Screen "Screen 1"
    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"

EndSection
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