allora .... provo ad essere più preciso ....
se edito manualmente xorg.conf ed inserisco manualmente la risoluzione1280x768@75 e riavvio il sistema .... X parte a 640 x 480 e mi trovo il file xorg.conf modificato in questo modo ....
Codice: Seleziona tutto
Section "Device"
Identifier "Intel Corporation 82852/855GM Integrated Graphics Device"
Boardname "intel"
Busid "PCI:0:2:0"
Driver "intel"
Screen 0
EndSection
Section "Monitor"
Identifier "Monitor Generico"
Vendorname "Plug 'n' Play"
Modelname "Plug 'n' Play"
modeline "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
Gamma 1.0
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Intel Corporation 82852/855GM Integrated Graphics Device"
Monitor "Monitor Generico"
Defaultdepth 24
SubSection "Display"
Depth 24
Virtual 640 480
Modes "640x480@60"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
screen 0 "Default Screen" 0 0
Inputdevice "Generic Keyboard"
Inputdevice "Configured Mouse"
# Uncomment if you have a wacom tablet
# InputDevice "stylus" "SendCoreEvents"
# InputDevice "cursor" "SendCoreEvents"
# InputDevice "eraser" "SendCoreEvents"
EndSection
Section "Module"
Load "glx"
Load "GLcore"
Load "v4l"
EndSection
Section "device" #
Identifier "device1"
Boardname "intel"
Busid "PCI:0:2:0"
Driver "intel"
Screen 1
EndSection
Section "screen" #
Identifier "screen1"
Device "device1"
Defaultdepth 24
Monitor "monitor1"
EndSection
Section "monitor" #
Identifier "monitor1"
Gamma 1.0
EndSection
Section "ServerFlags"
EndSection
poi navigando per la rete ho trovato questo comando
ma per poterlo lanciare ho dovuto installare un pacchetto che non avevo:
posto di seguito il risultato:
Codice: Seleziona tutto
root@MythTv:/etc/X11# ddcprobe
vbe: VESA 3.0 detected.
oem: Intel(r)852GM/852GME/855GM/855GME Graphics Chip Accelerated VGA BIOS
vendor: Intel Corporation
product: Intel(r)852GM/852GME/855GM/855GME Graphics Controller Hardware Version 0.0
memory: 32576kb
mode: 1280x1024x256
mode: 1280x1024x64k
mode: 1280x1024x16m
mode: 1024x768x256
mode: 1024x768x64k
mode: 1024x768x16m
mode: 640x480x16m
mode: 800x600x64k
mode: 800x600x16m
mode: 640x480x256
mode: 800x600x256
mode: 640x480x64k
edid:
edid: 1 3
id: 0a28
eisa: ACR0a28
serial: 000002e3
manufacture: 53 2004
input: sync on green, analog signal.
screensize: 57 34
gamma: 2.200000
dpms: RGB, active off, suspend, standby
timing: 720x400@70 Hz (VGA 640x400, IBM)
timing: 720x400@88 Hz (XGA2)
timing: 640x480@60 Hz (VGA)
timing: 640x480@67 Hz (Mac II, Apple)
timing: 640x480@75 Hz (VESA)
timing: 800x600@60 Hz (VESA)
timing: 800x600@75 Hz (VESA)
timing: 832x624@75 Hz (Mac II)
timing: 1024x768@87 Hz Interlaced (8514A)
timing: 1024x768@70 Hz (VESA)
timing: 1024x768@75 Hz (VESA)
timing: 1280x1024@75 (VESA)
ctiming: 640x480@85
ctiming: 800x600@85
ctiming: 1024x768@85
dtiming: 1280x768@70
monitorrange: 30-80, 50-85
monitorserial: 1234
monitorname: Acer AL2671W
dopo aver installato questo sw ... se provo a riconfigurare X con il classico comando
dpkg-reconfigure xserver-xorg ora il sistema mi rileva il display e anche le frequenze che prima non rilevava ...
ora come ora xorg.conf è così strutturato:
Codice: Seleziona tutto
root@MythTv:/etc/X11# cat xorg.conf
# 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 xorg.conf manual page.
# (Type "man 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 "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "it"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "stylus"
Option "Device" "/dev/input/wacom"
Option "Type" "stylus"
Option "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "eraser"
Option "Device" "/dev/input/wacom"
Option "Type" "eraser"
Option "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "cursor"
Option "Device" "/dev/input/wacom"
Option "Type" "cursor"
Option "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection
Section "Device"
Identifier "Intel Corporation 82852/855GM Integrated Graphics Device"
Boardname "intel"
Busid "PCI:0:2:0"
Driver "intel"
Screen 0
EndSection
Section "Monitor"
Identifier "Acer AL2671W"
Modelname "Custom 1"
modeline "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
modeline "640x480@72" 31.5 640 664 704 832 480 489 491 520 -vsync -hsync
modeline "640x480@75" 31.5 640 656 720 840 480 481 484 500 -vsync -hsync
modeline "640x480@85" 36.0 640 696 752 832 480 481 484 509 -vsync -hsync
modeline "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
modeline "800x600@72" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
modeline "800x600@75" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
modeline "800x600@85" 56.3 800 832 896 1048 600 601 604 631 +hsync +vsync
modeline "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
modeline "832x624@75" 57.284 832 864 928 1152 624 625 628 667 -vsync -hsync
modeline "1024x768@85" 94.5 1024 1072 1168 1376 768 769 772 808 +hsync +vsync
modeline "1024x768@75" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
modeline "1024x768@70" 75.0 1024 1048 1184 1328 768 771 777 806 -vsync -hsync
modeline "1024x768@60" 65.0 1024 1048 1184 1344 768 771 777 806 -vsync -hsync
modeline "1152x864@75" 108.0 1152 1216 1344 1600 864 865 868 900 +hsync +vsync
modeline "1280x1024@75" 135.0 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
modeline "1280x960@60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync +vsync
modeline "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
modeline "1280x960@75" 129.86 1280 1368 1504 1728 960 961 964 1002 -hsync +vsync
modeline "1400x1050@60" 122.61 1400 1488 1640 1880 1050 1051 1054 1087 -hsync +vsync
modeline "1600x1200@60" 162.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
Gamma 1.0
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Intel Corporation 82852/855GM Integrated Graphics Device"
Monitor "Acer AL2671W"
Defaultdepth 24
SubSection "Display"
Depth 24
Virtual 1600 1200
Modes "1280x960@60" "1280x1024@60" "1280x1024@75" "1280x960@75" "1152x864@75" "1400x1050@60" "1024x768@60" "1600x1200@60" "1024x768@70" "1024x768@75" "1024x768@85" "832x624@75" "800x600@60" "800x600@85" "800x600@75" "800x600@72" "800x600@56" "640x480@85" "640x480@75" "640x480@72" "640x480@60"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
screen 0 "Default Screen" 0 0
Inputdevice "Generic Keyboard"
Inputdevice "Configured Mouse"
# Uncomment if you have a wacom tablet
# InputDevice "stylus" "SendCoreEvents"
# InputDevice "cursor" "SendCoreEvents"
# InputDevice "eraser" "SendCoreEvents"
EndSection
Section "Module"
Load "glx"
Load "GLcore"
Load "v4l"
EndSection
Section "device" #
Identifier "device1"
Boardname "intel"
Busid "PCI:0:2:0"
Driver "intel"
Screen 1
EndSection
Section "screen" #
Identifier "screen1"
Device "device1"
Defaultdepth 24
Monitor "monitor1"
EndSection
Section "monitor" #
Identifier "monitor1"
Gamma 1.0
EndSection
Section "ServerFlags"
EndSection
è un po' lungo perchè ho fatto scrivere la gamma di frequenze nel file .... ma nonostante tutto la risoluzione che mi interessa 1280x768 non è presente .... e se la aggiungo manualmente torniamo al punto di partenza ....
con questo xorg.conf il sistema parte a 1024x768 60Hz, e posso impostarlo manualmente a 1280x768 60Hz ma la qualità dell'immagine è abbastanza scadente e continuo a non riuscire a risolvere il problema ...
Spero che con queste nuove informazioni qualcuno possa darmi una mano :-\
Edit:Dimenitcavo ...... la scheda ha anche un uscita DVI ed ilmonitor un ingresso DVI-D ma se collego il moditor con quell'interfaccia ... vedo solo la parte testuale mentre quando parte in grafica ..... Puff ... lo schermo si spegne ....