Re: [lcd4linux] Syslog overflow: "unable to compact bar characters"

[Michael R. <mi...@re...>]

Hi STefan,

>> A HD44780 display has only 8 user-defineable characters, and it is not
>> possible to map every combination of (double-)bars to this 8 chars.
>> lcd4linux tries to be very clever in finding a way to display your bars
>> with the available chars, but if the situation gets too complex it may
>> fail. This is what this message is about.
>>
>> Hint #1: don't mix horizontal and vertical bars.
>> Hint #2: dont mix E(east) and W(west) bars

> However, to understand the Problem, here's the initial situation:
> 
> In my lcd4linux.conf I had set "Icons 8", 
ooops...

> defined all the sample icons
> and bar-widgets from the sampe-config but used only two Icons ("Rain"
> and "Blob") and a split horizontal bar (BusyBar).
> 
> Now, what exactly causes the problem? If I get you right, this must be
> (a) - that I had set "icons 8" and used a bar on top
Yea, that's right. th "Icons 8" statement tells lcd4linux to reserve all
8 user-defineable chars for Icons, leaving exactly none to the bar
processor.

> Or could it be alternativle also
> (b) - that I had defined icons that were not needed
no, that's no problem.
> (c) - that I had defined many bar-widgets I were not using
> because the bare existence of these definitions in the config file uses
> the resources, even if they are not displayed in the screen-definition?
No again. lcd4linux creates widgets only if it finds them in a "Layout"
Section

> By the way: Is there a possibility to get my display to show the "°"
> symbol  as such, when it's part of a displayed text (I read 
> temperatures from a file, so that I want "xx.x °C").
Of course it's possible, as long as a) your display supports the degree
char, and b) you can find out which ascii code it uses. If it's a
strange ascii value, you can always use the \octal notation.



bye, Michael

-- 
Michael Reinelt <mi...@re...>
http://home.pages.at/reinelt
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