Operation Manual

Chapter 8. General Settings 62
display saves battery power but turning on the display takes noticeably longer
than just turning on the backlight.
Brightness. Changes the brightness of your LCD display.
Contrast. Changes the contrast of your LCD display.
Warning: Setting the contrast too dark or too light can make it hard to find
!
this menu option again!
LCD Mode. This setting lets you invert the colours of the display.
Upside Down. Displays the screen so that the top of the display is nearest the
buttons. This is sometimes useful when carrying the player in a pocket for
easy access to the headphone socket.
Scrolling. This feature controls how text will scroll in Rockbox. You can configure the
following parameters:
Scroll Speed. Sets how many times per second the automatic horizontal scrolling
text will move a step.
Scroll Start Delay. Controls how many milliseconds Rockbox should wait before
a new text begins automatically scrolling.
Scroll Step Size. Defines the number of pixels the text should move for each step,
as used by the Scroll Speed setting.
Bidirectional Scroll Limit. Rockbox has two different automatic horizontal scrolling
methods: 1) always scrolling the text to the left until the line has ended and
then beginning again at the start, and 2) moving to the left until you can
read the end of the line and then scrolling right until you see the beginning
again. Rockbox chooses which method it should use depending of how much
it has to scroll to the left. This setting lets you tell Rockbox where that limit
is, expressed in percentage of the line length.
Screen Scrolls Out of View. Screens can be manually scrolled horizontally by
pressing Long Next/Prev. Setting this option to Yes will keep the list
entries at their fixed positions and allow them to be scrolled out of view,
whereas No will only scroll those entries which surpass the right margin.
Screen Scroll Step Size. Defines the number of pixels the horizontal manual screen
scroll should move for each step.
Paged Scrolling. When set to Yes scrolling vertically on pages that surpass the
screen size will page up/down instead of simply changing lines. This can be
useful on slow displays.
List Acceleration Start Delay. This setting enables the acceleration of scroll speed
in lists when holding Scroll Up or Scroll Down. When set to Off the
acceleration is disabled. When any other value is set the acceleration will
start to accelerate after holding Scroll Up or Scroll Down for the chosen
time (in seconds).
The Rockbox manual (version 3.10) Packard Bell Vibe 500