|
| 以 PDF 格式下載這本書 (559 KB)
Chapter 9 Accessibility Problems
This section provides information about how to deal with accessibility-related
problems in the GNOME 2.0 Desktop.
9.1 Keyboard Is Unresponsive
|
Problem
|
The keyboard stops responding
when I do the following:
-
Select the Enable Mouse Keys option in AccessX.
-
Select either Enable Bounce Keys or Enable Slow Keys.
-
Use the numeric keypad to move focus to the Testing
Area text box.
-
Press 5 on the numeric keypad to click in
the Testing Area text box.
The keyboard does not work in any application, such as
Terminal, gedit, and so on.
|
|
Solution
|
Perform the following
actions:
-
Select the Enable Mouse Keys option in AccessX.
-
Use Mouse Keys to enable the Bounce Keys feature.
-
Use the numeric keypad to move focus to the Testing
Area text box.
-
Press 5 on the numeric keypad to click in
the Testing Area text box.
-
Press 5 a second time in the Testing
Area text box.
-
Type as normal using keyboard.
Perform the same sequence of actions for Slow Keys.
|
9.2 Numeric Keypad Is Unresponsive
|
Problem
|
The numeric keypad stops
responding when I enable XKB on a Solaris 8 or a Solaris 9 system.
|
|
Solution
|
Use the numeric keys
in the main part of the keyboard.
|
9.3 System Beeps Continuously
|
Problem
|
This problem is displayed
on Sun Ray systems only.
The system beeps continuously when I
do the following:
-
Select the Enable keyboard accessibility
option in the AccessX dialog.
-
Select either of the following accessibility options:
-
Press a modifier key or press a toggle key.
|
|
Solution
|
To stop the beeps,
you must log out and log in again. Then, perform the following actions in
the AccessX dialog:
-
Deselect the Enable Toggle Keys option.
-
Deselect the Beep when modifier is pressed option for sticky keys.
|
9.4 System Beeps Incorrectly for Slow Keys
|
Problem
|
The Beep when
key is rejected option for Slow Keys is not working correctly when
I do the following:
-
Select the Enable Slow Keys option in
the AccessX dialog.
-
Select the Beep when key is rejected
option.
-
Deselect the Beep when key is accepted
option.
-
Press-and-hold a key for the time specified in the Only accept keypress after spin box.
-
Release the key. The system accepts the keypress but the system
beeps when you release the key.
In this situation, the system should not beep when you
release the key after a successful keypress.
|
|
Solution
|
Perform the following
actions:
-
Deselect the Beep when key is rejected
option.
-
Select the Beep when key is accepted
option.
|
9.5 Mouse Keys Functionality
|
Problem
|
This problem is displayed
on Sun Ray systems only.
When you enable the Mouse Keys feature,
the 9 key on the numeric keypad should move the mouse pointer
upwards and diagonally to the right. However, the 9 key moves
the pointer straight upwards.
|
|
Solution
|
Press the 8 key to move the pointer upwards and press the 6
key to move the pointer to the right.
|
|