Wrong resolution and refresh on second screen

[Alex Deucher]

On Wed, May 28, 2008 at 1:58 PM,  <sfrdll at tiscali.it> wrote:
> Thank you for your reply.
>
> I modified xorg.conf according to your indications but nothing changed.
> What is strange is that if I move the mouse from the Laptop LCD to the right
> on the external LCD, the pointer is no more the usual arrow, but it becomes a
> strange square full of colored dots.
>
> fb messing up?

Probably some issue with zaphod mode.  Does xrandr work ok (i.e., one
screen section)?

Alex

>
> Thanks
> Sergio
>
> On Tuesday 27 May 2008 05:37:16 Alex Deucher wrote:
>> On Sun, May 25, 2008 at 8:44 AM,  <sfrdll at tiscali.it> wrote:
>> > Hi all,
>> > I know that his topic as been discussed thousand times, but this is my
>> > first time in xorg configuration and I hardly understand old discussions.
>> >
>> > I have an ASUS laptop with ATI Radeon Mobility 7500, and 1400x1050 LCD
>> > screen. A few days ago I plugged and external Acer 1680x1050 LCD screen,
>> > but it only works at 1440x900 75Hz, I cannot get it working at 1680x1050
>> > 60Hz.
>> >
>> > I think it is due to wrong xorg.conf.
>> >
>> > Can anyone please help me? Thanks a lot.
>>
>> the default fb size is not large enough for a 1680x1050 screen.
>> you'll need to add a virtual line to the display subection of the
>> display section of your xorg.conf (see below).
>>
>> > Sergio
>> >
>> > Here are my xorg.conf and Xorg.0.log:
>> >
>> > -------------------------------------------------------------------------
>> >-----------------------------------------
>> >
>> > # 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 "ServerLayout"
>> >        Identifier     "Default Layout"
>> >        Screen         0 "ScreenAsus" 0 0
>> >        Screen         1 "ScreenAcer" RightOf "ScreenAsus"
>> >        InputDevice    "Generic Keyboard"
>> >        InputDevice    "Configured Mouse"
>> >        InputDevice    "Synaptics Touchpad"
>> > EndSection
>> >
>> > Section "Files"
>> > EndSection
>> >
>> > Section "Module"
>> > EndSection
>> >
>> > 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      "Emulate3Buttons" "true"
>> > EndSection
>> >
>> > Section "InputDevice"
>> >        Identifier  "Synaptics Touchpad"
>> >        Driver      "synaptics"
>> >        Option      "SendCoreEvents" "true"
>> >        Option      "Device" "/dev/psaux"
>> >        Option      "Protocol" "auto-dev"
>> >        Option      "HorizScrollDelta" "0"
>> > EndSection
>> >
>> > Section "Monitor"
>> >        Identifier   "MonitorAsus"
>> >        HorizSync    60.0 - 75.0
>> >        VertRefresh  60.0 - 75.0
>> >        Option       "DPMS"
>> > EndSection
>> >
>> > Section "Monitor"
>> >        Identifier   "MonitorAcer"
>> >        HorizSync    60.0 - 75.0
>> >        VertRefresh  60.0 - 75.0
>> >        Option       "DPMS"
>> > EndSection
>> >
>> > Section "Device"
>> >        Identifier  "RadeonAsus"
>> >        Driver      "ati"
>> >        BusID       "PCI:1:0:0"
>> >        Screen      0 # "ScreenAsus"
>> > EndSection
>> >
>> > Section "Device"
>> >        Identifier  "RadeonAcer"
>> >        Driver      "ati"
>> >        BusID       "PCI:1:0:0"
>> >        Screen      1 # "ScreenAcer"
>> > EndSection
>> >
>> > Section "Screen"
>> >        Identifier  "ScreenAsus"
>> >        Device      "RadeonAsus"
>> >        Monitor     "MonitorAsus"
>> >        DefaultDepth     24
>> >        SubSection "Display"
>> >                Depth     24
>> >                Modes    "1400x1050"
>> >        EndSubSection
>> > EndSection
>> >
>> > Section "Screen"
>> >        Identifier  "ScreenAcer"
>> >        Device      "RadeonAcer"
>> >        Monitor     "MonitorAsus"
>> >        DefaultDepth     24
>> >        SubSection "Display"
>>
>>                   Virtual 1680 1050
>>
>> >                Depth     24
>> >                Modes     "1680x1050"
>> >        EndSubSection
>> > EndSection
>>
>> Alex
>
>
>