Troubleshooting (Advanced); Shut Down - Panasonic Toughbook CF-31AAA7J1M Reference Manual

Troubleshooting (Advanced)

Refer to the following instructions when a problem occurs. If the remedies indicated in the chart do not solve the problem,
contact Panasonic Technical Support. For a software problem, refer to the instruction manual of the software.
• To check the computer's usage status (

Shut Down

Cannot shut down or restart Windows.
Display
The screen does not become bright
even if pressing Fn + F2.
Takes time to display [Power Options]
screen.
Graphics display performance is low.
There are red, green, or blue dots on
the screen, or there is unevenness in
colors and brightness on the screen.
page 138).
Remove USB devices.
It may take 1 or 2 minutes to shut down.
The brightness is set low to avoid malfunction where surrounding temperature
is high. Use it in an environment of between 5°C and 35°C.
With the following steps, confirm whether [Copy of Panasonic Power Manage-
ment] created when the Power Saving Utility is made has become 100 and
more or not.
Click or on the notification area and click [More power options].
A
Click [Show additional plans].
B
When more than one [Copy of Panasonic Power Management] is displayed,
click [Change plan settings] in the power plan to be deleted and click [Delete
this plan] to delete.
When you start up the computer for the first time after purchase, the Intel
is activated to save power.
Restart the computer, and set [Switchable Graphics] in the [Main] menu of the
Setup Utility to [Performance Video]. This activates the discrete GPU, which
maintains a higher graphics display performance, after the computer starts.
When [Switchable Graphics] in the main menu of the Setup Utility is set to
[Switchable], activate the discrete GPU, which maintains a higher graphics dis-
play performance. (
The following are not malfunctions.
Although advanced high-precision technologies are used in the production of
color LCD screens, 0.002% or less of the picture elements may be dark or
remain constantly lit (i.e., more than 99.998% of elements function properly).
Due to the natural characteristics of LCD screens, you may notice unevenness
in colors and brightness depending on your angle of view.
Hues may also vary by product.
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GPU