Compaq L2206tm User Guide - Page 29

Touch screen troubleshooting, Support and troubleshooting,

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Touch screen troubleshooting NOTE: For general troubleshooting information, refer to Support and troubleshooting on page 28. Table 4-2 Touch screen troubleshooting Problem Solution Computer does not recover from Sleep mode when the touch Sleep mode recovery is not supported by the touch screen. screen is touched. Use the keyboard or mouse to recover from Sleep mode. The USB cable is quickly removed from the monitor and reinserted, and the touch function is lost. Windows takes a minimum amount of time to adjust system parameters when a USB device is either removed or connected. Try removing the USB cable again, wait for at least five seconds, and then plug it in again. Multi-touch gestures do not function on Windows 7 Home Basic or Starter editions, Windows Vista, or Windows XP. Only Windows 7 Home Premium, Professional, Enterprise, and Ultimate editions support multi-touch gestures. The Start, Close, and other icons are too small to touch with a finger. Windows 7 provides a large icon feature that supports touch screen functions. This feature can be accessed in the Control Panel. A stylus may also be used. Touch operation does not function properly on lowerresolution video modes that are not displayed in fullscreen. Although the monitor supports a fill-to-aspect ratio function, the touch controller does not know how to respond to lessthan-fullscreen images. Either change the resolution to 1920 x 1080, or access the OSD menu and select Image Control to enable Fill-to-Screen (default setting). A single touch is recognized as two touches. If using a paint tool, a single finger creates two lines. The touch controller has a limitation on the size of the "touch" area. A fingertip touch usually works better than a flat forefinger or thumb touch. When the monitor used is in a dual-screen configuration, the touch function on the second display does not work. The USB connection is only capable of operating a singletouch screen monitor. If the second monitor is a touch monitor, you must connect a second USB cable. NOTE: Windows 7 Home Basic and Starter editions, Windows Vista, and Windows XP do not support extended display touch functionality. They support single-touch functions on the primary monitor only, not the secondary monitor (extended or cloned desktop). Touch function is erratic. The screen may have surface contamination. Refer to Cleaning the monitor panel, in the Tips and troubleshooting section. Tips and troubleshooting 23

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Touch screen troubleshooting
NOTE:
For general troubleshooting information, refer to
Support and troubleshooting
on page
28
.
Table 4-2
Touch screen troubleshooting
Problem
Solution
Computer does not recover from Sleep mode when the touch
screen is touched.
Sleep mode recovery is not supported by the touch screen.
Use the keyboard or mouse to recover from Sleep mode.
The USB cable is quickly removed from the monitor and
reinserted, and the touch function is lost.
Windows takes a minimum amount of time to adjust system
parameters when a USB device is either removed or
connected. Try removing the USB cable again, wait for at
least five seconds, and then plug it in again.
Multi-touch gestures do not function on Windows 7 Home
Basic or Starter editions, Windows Vista, or Windows XP.
Only Windows 7 Home Premium, Professional, Enterprise,
and Ultimate editions support multi-touch gestures.
The
Start
,
Close
, and other icons are too small to touch with
a finger.
Windows 7 provides a large icon feature that supports touch
screen functions. This feature can be accessed in the
Control Panel. A stylus may also be used.
Touch operation does not function properly on lower-
resolution video modes that are not displayed in fullscreen.
Although the monitor supports a fill-to-aspect ratio function,
the touch controller does not know how to respond to less-
than-fullscreen images. Either change the resolution to 1920
x 1080, or access the OSD menu and select
Image Control
to enable
Fill-to-Screen
(default setting).
A single touch is recognized as two touches. If using a paint
tool, a single finger creates two lines.
The touch controller has a limitation on the size of the
"touch" area. A fingertip touch usually works better than a flat
forefinger or thumb touch.
When the monitor used is in a dual-screen configuration, the
touch function on the second display does not work.
The USB connection is only capable of operating a single-
touch screen monitor. If the second monitor is a touch
monitor, you must connect a second USB cable.
NOTE:
Windows 7 Home Basic and Starter editions,
Windows Vista, and Windows XP do not support extended
display touch functionality. They support single-touch
functions on the primary monitor only, not the secondary
monitor (extended or cloned desktop).
Touch function is erratic.
The screen may have surface contamination. Refer to
Cleaning the monitor panel, in the Tips and troubleshooting
section.
Tips and troubleshooting
23