Re: xosd fails to update on OpenBSD

On 16.11.2011 15:43, Edd Barrett wrote:
> Hi,
>
> I am currently working on porting LCDproc to OpenBSD. Thus far I am able
> to drive a HD44780 and curses LCD with only minor patching.
>
> However the xosd driver appears to be misbehaving. The LCDd.conf setion
> for xosd is as follows:
>
> ---8<---
> ## OnScreen Display using libxosd ##
> [xosd]
>
> # set display size [default: 20x4]
> Size=20x4
>
> # Offset in pixels from the top-left corner of the monitor [default: 0x0]
> Offset=0x0
>
> # X font to use, in XLFD format, as given by "xfontsel"
> Font=-*-charter-*-r-*-*-19-*-*-*-*-*-*-*
> ---8<---
>
> I had to change the font, as terminus is not installed by default.
>
> Now if I run `LCDd -fs0`, I see in green text "## LCDproc Server ##' at
> the top left of my left monitor. If I compare this to the curses driver,
> I notice that the xosd only displays the first line of the screen.
>
> I tried running in a non-tiling window manager too and observed the same
> issue. I also noticed that if I drag windows on top of the display and
> off again, parts of the display become discoloured.
>
> Sounds like the display is failing to update?
>
> Attaching clients makes no difference to the OSD display.
>
> Any ideas?
>
> Cheers
>

Hi,

unfortunately I have no real idea if this is a problem with LCDproc,
xosd, or OpenBSD's X server as it runs fine here.

The line '## LCDproc Server ##' should have the last (right) character
alternating between '#' and '-' (the heartbeat characters unless you 
turned that off in LCDd.conf).

There are problems known regarding use of the pthread library, e.g. the
xosd driver 'hangs' on startup running it on FreeBSD. This may be a
problem with OpenBSD as well.

What threading library is xosd linked with?  'ldd ....lib/xosd.so' may
reveal this (replace ..../lib/xosd.so with the path and name of your
xosd library).

Regards
Markus