lo schermo mi è diventato senza contrasto...

[il Cubo]

da un po' di tempo (dopo qualche aggiornamento dei software non di versione Ubuntu)

lo schermo mi è diventato estremamente "brillante" senza più contrasto
al punto che in certe pagine Web di login a sfondo bianco non distiguo più i campi dove scrivere dal resto...

deve essere un problema di ubuntu perchè ho dual-boot con windows e li non è cambiato niente...

[cristian_c]

da un po' di tempo (dopo qualche aggiornamento dei software non di versione Ubuntu)

lo schermo mi è diventato estremamente "brillante" senza più contrasto
al punto che in certe pagine Web di login a sfondo bianco non distiguo più i campi dove scrivere dal resto...

deve essere un problema di ubuntu perchè ho dual-boot con windows e li non è cambiato niente...

di quali software parli?  ???

[il Cubo]

di quelli Ubuntu
ed aggiornati da "gestione aggiornamenti"

non ho nulla di particolare

[cristian_c]

di quelli Ubuntu
ed aggiornati da "gestione aggiornamenti"

non ho nulla di particolare

Digita:

Codice: Seleziona tutto

lshw -c display | grep driver

e copia qui il risultato 

Inoltre posta il tuo Xorg.0.log  (yes)

[il Cubo]

del primo comando ecco cosa mi da

Codice: Seleziona tutto

sudo lshw -c display | grep driver
       configuration: driver=nvidia latency=0

ma di Xorg.0.log come/dove faccio a trovar il contenuto?

[cristian_c]

del primo comando ecco cosa mi da

Codice: Seleziona tutto

sudo lshw -c display | grep driver
       configuration: driver=nvidia latency=0

Con i driver nouveau il problema si presenta ugualmente? 

ma di Xorg.0.log come/dove faccio a trovar il contenuto?

si trova in /var/log 

[il Cubo]

acc cristian_c mi sei troppo "tecnico" cosa intendi per driver nouveau?  :-[

ecco il contenuto di Xorg.0.log

Codice: Seleziona tutto

X.Org X Server 1.7.6
Release Date: 2010-03-17
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-27-server i686 Ubuntu
Current Operating System: Linux nicola-desktop 2.6.32-34-generic #77-Ubuntu SMP Tue Sep 13 19:40:53 UTC 2011 i686
Kernel command line: root=UUID=b244ef74-3f91-4e76-8222-c76d03494eba ro quiet splash 
Build Date: 08 March 2011  08:22:50AM
xorg-server 2:1.7.6-2ubuntu7.6 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.16.4
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Oct  8 11:18:53 2011
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using config directory: "/usr/lib/X11/xorg.conf.d"
(==) ServerLayout "Default Layout"
(**) |-->Screen "Default Screen" (0)
(**) |   |-->Monitor "SyncMaster"
(**) |   |-->Device "NVIDIA Corporation NV43 [GeForce 6600]"
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/X11/fonts/cyrillic" does not exist.
	Entry deleted from font path.
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
	Entry deleted from font path.
(**) FontPath set to:
	/usr/share/X11/fonts/misc,
	/usr/share/X11/fonts/100dpi/:unscaled,
	/usr/share/X11/fonts/75dpi/:unscaled,
	/usr/share/X11/fonts/Type1,
	/usr/share/X11/fonts/100dpi,
	/usr/share/X11/fonts/75dpi,
	/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
	/usr/share/fonts/X11/misc,
	/usr/share/fonts/X11/100dpi/:unscaled,
	/usr/share/fonts/X11/75dpi/:unscaled,
	/usr/share/fonts/X11/Type1,
	/usr/share/fonts/X11/100dpi,
	/usr/share/fonts/X11/75dpi,
	/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
	built-ins
(==) ModulePath set to "/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
(II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
(II) Loader magic: 0x81f1e80
(II) Module ABI versions:
	X.Org ANSI C Emulation: 0.4
	X.Org Video Driver: 6.0
	X.Org XInput driver : 7.0
	X.Org Server Extension : 2.0
(++) using VT number 7

(--) PCI:*(0:1:0:0) 10de:0141:1043:81b0 nVidia Corporation NV43 [GeForce 6600] rev 162, Mem @ 0xf8000000/67108864, 0xc0000000/268435456, 0xfd000000/16777216, BIOS @ 0x????????/131072
(II) Open ACPI successful (/var/run/acpid.socket)
(II) "extmod" will be loaded. This was enabled by default and also specified in the config file.
(II) "dbe" will be loaded by default.
(II) "glx" will be loaded. This was enabled by default and also specified in the config file.
(II) "record" will be loaded by default.
(II) "dri" will be loaded by default.
(II) "dri2" will be loaded by default.
(II) LoadModule: "i2c"
(II) Module "i2c" already built-in
(II) LoadModule: "ddc"
(II) Module "ddc" already built-in
(II) LoadModule: "extmod"
(II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.0.0
	Module class: X.Org Server Extension
	ABI class: X.Org Server Extension, version 2.0
(II) Loading extension MIT-SCREEN-SAVER
(II) Loading extension XFree86-VidModeExtension
(II) Loading extension XFree86-DGA
(II) Loading extension DPMS
(II) Loading extension XVideo
(II) Loading extension XVideo-MotionCompensation
(II) Loading extension X-Resource
(II) LoadModule: "glx"
(II) Loading /usr/lib/xorg/extra-modules/libglx.so
(II) Module glx: vendor="NVIDIA Corporation"
	compiled for 4.0.2, module version = 1.0.0
	Module class: X.Org Server Extension
(II) NVIDIA GLX Module  195.36.24  Thu Apr 22 10:38:29 PDT 2010
(II) Loading extension GLX
(II) LoadModule: "int10"
(II) Loading /usr/lib/xorg/modules/libint10.so
(II) Module int10: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.0.0
	ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "vbe"
(II) Loading /usr/lib/xorg/modules/libvbe.so
(II) Module vbe: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.1.0
	ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "dbe"
(II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
(II) Module dbe: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.0.0
	Module class: X.Org Server Extension
	ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DOUBLE-BUFFER
(II) LoadModule: "record"
(II) Loading /usr/lib/xorg/modules/extensions/librecord.so
(II) Module record: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.13.0
	Module class: X.Org Server Extension
	ABI class: X.Org Server Extension, version 2.0
(II) Loading extension RECORD
(II) LoadModule: "dri"
(II) Loading /usr/lib/xorg/modules/extensions/libdri.so
(II) Module dri: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.0.0
	ABI class: X.Org Server Extension, version 2.0
(II) Loading extension XFree86-DRI
(II) LoadModule: "dri2"
(II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
(II) Module dri2: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.1.0
	ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DRI2
(II) LoadModule: "nvidia"
(II) Loading /usr/lib/xorg/extra-modules/nvidia_drv.so
(II) Module nvidia: vendor="NVIDIA Corporation"
	compiled for 4.0.2, module version = 1.0.0
	Module class: X.Org Video Driver
(II) NVIDIA dlloader X Driver  195.36.24  Thu Apr 22 09:34:29 PDT 2010
(II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
(II) Primary Device is: PCI 01@00:00:0
(II) Loading sub module "fb"
(II) LoadModule: "fb"
(II) Loading /usr/lib/xorg/modules/libfb.so
(II) Module fb: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.0.0
	ABI class: X.Org ANSI C Emulation, version 0.4
(II) Loading sub module "wfb"
(II) LoadModule: "wfb"
(II) Loading /usr/lib/xorg/modules/libwfb.so
(II) Module wfb: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 1.0.0
	ABI class: X.Org ANSI C Emulation, version 0.4
(II) Loading sub module "ramdac"
(II) LoadModule: "ramdac"
(II) Module "ramdac" already built-in
(**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
(==) NVIDIA(0): RGB weight 888
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) NVIDIA(0): Option "NoLogo" "True"
(**) Oct 08 11:18:54 NVIDIA(0): Enabling RENDER acceleration
(II) Oct 08 11:18:54 NVIDIA(0): Support for GLX with the Damage and Composite X extensions is
(II) Oct 08 11:18:54 NVIDIA(0):     enabled.
(II) Oct 08 11:18:55 NVIDIA(0): NVIDIA GPU GeForce 6600 (NV43) at PCI:1:0:0 (GPU-0)
(--) Oct 08 11:18:55 NVIDIA(0): Memory: 262144 kBytes
(--) Oct 08 11:18:55 NVIDIA(0): VideoBIOS: 05.43.02.61.00
(II) Oct 08 11:18:55 NVIDIA(0): Detected PCI Express Link width: 16X
(--) Oct 08 11:18:55 NVIDIA(0): Interlaced video modes are supported on this GPU
(--) Oct 08 11:18:55 NVIDIA(0): Connected display device(s) on GeForce 6600 at PCI:1:0:0:
(--) Oct 08 11:18:55 NVIDIA(0):     Samsung SyncMaster (CRT-0)
(--) Oct 08 11:18:55 NVIDIA(0): Samsung SyncMaster (CRT-0): 400.0 MHz maximum pixel clock
(II) Oct 08 11:18:55 NVIDIA(0): Assigned Display Device: CRT-0
(WW) Oct 08 11:18:55 NVIDIA(0): No valid modes for "720x400"; removing.
(II) Oct 08 11:18:55 NVIDIA(0): Validated modes:
(II) Oct 08 11:18:55 NVIDIA(0):     "1280x1024"
(II) Oct 08 11:18:55 NVIDIA(0):     "1152x864"
(II) Oct 08 11:18:55 NVIDIA(0):     "1024x768"
(II) Oct 08 11:18:55 NVIDIA(0):     "832x624"
(II) Oct 08 11:18:55 NVIDIA(0):     "800x600"
(II) Oct 08 11:18:55 NVIDIA(0):     "640x480"
(II) Oct 08 11:18:55 NVIDIA(0): Virtual screen size determined to be 1280 x 1024
(--) Oct 08 11:18:55 NVIDIA(0): DPI set to (95, 96); computed from "UseEdidDpi" X config
(--) Oct 08 11:18:55 NVIDIA(0):     option
(==) Oct 08 11:18:55 NVIDIA(0): Enabling 32-bit ARGB GLX visuals.
(--) Depth 24 pixmap format is 32 bpp
(II) Oct 08 11:18:55 NVIDIA(0): Initialized GPU GART.
(II) Oct 08 11:18:55 NVIDIA(0): Setting mode "1280x1024"
(II) Loading extension NV-GLX
(II) Oct 08 11:18:55 NVIDIA(0): Initialized OpenGL Acceleration
(==) NVIDIA(0): Disabling shared memory pixmaps
(II) Oct 08 11:18:55 NVIDIA(0): Initialized X Rendering Acceleration
(==) NVIDIA(0): Backing store disabled
(==) NVIDIA(0): Silken mouse enabled
(**) NVIDIA(0): DPMS enabled
(II) Loading extension NV-CONTROL
(II) Loading extension XINERAMA
(==) RandR enabled
(II) Initializing built-in extension Generic Event Extension
(II) Initializing built-in extension SHAPE
(II) Initializing built-in extension MIT-SHM
(II) Initializing built-in extension XInputExtension
(II) Initializing built-in extension XTEST
(II) Initializing built-in extension BIG-REQUESTS
(II) Initializing built-in extension SYNC
(II) Initializing built-in extension XKEYBOARD
(II) Initializing built-in extension XC-MISC
(II) Initializing built-in extension SECURITY
(II) Initializing built-in extension XINERAMA
(II) Initializing built-in extension XFIXES
(II) Initializing built-in extension RENDER
(II) Initializing built-in extension RANDR
(II) Initializing built-in extension COMPOSITE
(II) Initializing built-in extension DAMAGE
(II) Initializing extension GLX
(II) XKB: reuse xkmfile /var/lib/xkb/server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm
(II) config/udev: Adding input device Power Button (/dev/input/event1)
(**) Power Button: Applying InputClass "evdev keyboard catchall"
(II) LoadModule: "evdev"
(II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
(II) Module evdev: vendor="X.Org Foundation"
	compiled for 1.7.6, module version = 2.3.2
	Module class: X.Org XInput Driver
	ABI class: X.Org XInput driver, version 7.0
(**) Power Button: always reports core events
(**) Power Button: Device: "/dev/input/event1"
(II) Power Button: Found keys
(II) Power Button: Configuring as keyboard
(II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD)
(**) Option "xkb_rules" "evdev"
(**) Option "xkb_model" "pc105"
(**) Option "xkb_layout" "it"
(**) Option "xkb_options" "lv3:ralt_switch"
(II) XKB: reuse xkmfile /var/lib/xkb/server-3790116E007062F89E1BA05DA8FA459CE0F62FF3.xkm
(II) config/udev: Adding input device Power Button (/dev/input/event0)
(**) Power Button: Applying InputClass "evdev keyboard catchall"
(**) Power Button: always reports core events
(**) Power Button: Device: "/dev/input/event0"
(II) Power Button: Found keys
(II) Power Button: Configuring as keyboard
(II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD)
(**) Option "xkb_rules" "evdev"
(**) Option "xkb_model" "pc105"
(**) Option "xkb_layout" "it"
(**) Option "xkb_options" "lv3:ralt_switch"
(II) config/udev: Adding input device AT Translated Set 2 keyboard (/dev/input/event3)
(**) AT Translated Set 2 keyboard: Applying InputClass "evdev keyboard catchall"
(**) AT Translated Set 2 keyboard: always reports core events
(**) AT Translated Set 2 keyboard: Device: "/dev/input/event3"
(II) AT Translated Set 2 keyboard: Found keys
(II) AT Translated Set 2 keyboard: Configuring as keyboard
(II) XINPUT: Adding extended input device "AT Translated Set 2 keyboard" (type: KEYBOARD)
(**) Option "xkb_rules" "evdev"
(**) Option "xkb_model" "pc105"
(**) Option "xkb_layout" "it"
(**) Option "xkb_options" "lv3:ralt_switch"
(II) config/udev: Adding input device ImExPS/2 Logitech MX Mouse (/dev/input/event4)
(**) ImExPS/2 Logitech MX Mouse: Applying InputClass "evdev pointer catchall"
(**) ImExPS/2 Logitech MX Mouse: always reports core events
(**) ImExPS/2 Logitech MX Mouse: Device: "/dev/input/event4"
(II) ImExPS/2 Logitech MX Mouse: Found 12 mouse buttons
(II) ImExPS/2 Logitech MX Mouse: Found scroll wheel(s)
(II) ImExPS/2 Logitech MX Mouse: Found relative axes
(II) ImExPS/2 Logitech MX Mouse: Found x and y relative axes
(II) ImExPS/2 Logitech MX Mouse: Configuring as mouse
(**) ImExPS/2 Logitech MX Mouse: YAxisMapping: buttons 4 and 5
(**) ImExPS/2 Logitech MX Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
(II) XINPUT: Adding extended input device "ImExPS/2 Logitech MX Mouse" (type: MOUSE)
(II) ImExPS/2 Logitech MX Mouse: initialized for relative axes.
(II) config/udev: Adding input device ImExPS/2 Logitech MX Mouse (/dev/input/mouse1)
(II) No input driver/identifier specified (ignoring)
(II) config/udev: Adding input device Macintosh mouse button emulation (/dev/input/event2)
(**) Macintosh mouse button emulation: Applying InputClass "evdev pointer catchall"
(**) Macintosh mouse button emulation: always reports core events
(**) Macintosh mouse button emulation: Device: "/dev/input/event2"
(II) Macintosh mouse button emulation: Found 3 mouse buttons
(II) Macintosh mouse button emulation: Found relative axes
(II) Macintosh mouse button emulation: Found x and y relative axes
(II) Macintosh mouse button emulation: Configuring as mouse
(**) Macintosh mouse button emulation: YAxisMapping: buttons 4 and 5
(**) Macintosh mouse button emulation: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
(II) XINPUT: Adding extended input device "Macintosh mouse button emulation" (type: MOUSE)
(II) Macintosh mouse button emulation: initialized for relative axes.
(II) config/udev: Adding input device Macintosh mouse button emulation (/dev/input/mouse0)
(II) No input driver/identifier specified (ignoring)

[cristian_c]

Leggendo il file di log non ho notato warning o errori attinenti al problema  :-\

acc cristian_c mi sei troppo "tecnico" cosa intendi per driver nouveau?  Embarrassed

Hardware/Video/Nvidia/DriverNouveau