Toshiba Libretto 100CT User Manual page 92

Subtest 03 Gradation & mode test for VGA
This subtest displays gradations for each mode. Execute the test, then press
Enter to change the mode.
Resolution
800 x 480
NOTE: Mode 52 test can test only an external monitor, it cannot be used
for the internal LCD.
The display below appears on the screen when this subtest is executed.
Pressing Enter changes the size of the displayed image.
Pressing Enter changes the size of the displayed image.
Mode
3, 12, 13
File No. 960-140
3-17