Hi! I have the same problem here. I am using Ubuntu 8.04 with compiz and an
ati video driver. With sq3.10.2-7179dev08.08.1.image it works perfect, but
with sq3.9.1-7075web08.06.1.image I have this error.

I tried changing color depth to 16, 24 and 32, but it doesnt work.

Bert: Sorry but I didn't understand your comment. Is there a fix? How can I
do it? Can someone help me?

many thanks,

mariano


On Sun, Aug 17, 2008 at 1:06 PM, Bert Freudenberg <bert at freudenbergs.de>wrote:

>
> Am 17.08.2008 um 17:56 schrieb Ken Causey:
>
>  On Sun, 2008-08-17 at 17:04 +0200, Bert Freudenberg wrote:
>>
>>> Am 17.08.2008 um 11:29 schrieb laurent laffont:
>>>
>>>  Hi,
>>>>
>>>> I've switched to KDE4 and played with composite rendering.  With
>>>> last squeak dev images some fonts are not rendered: it seems to be
>>>> interpreted as a transparent region by the composite manager (see
>>>> screenshot). I've tested this on my two debian boxes.
>>>>
>>>> This problem is not present in sq3.9.1-7075dev08.07.1 image, so I
>>>> suppose it's due to NiceFont integration ?
>>>>
>>>
>>>
>>> Maybe it occurs more often with nice fonts, but it actually is a
>>> combined VM/image problem.
>>>
>>> The VM prefers a 32 bit X visual (with alpha channel) over a 24 bit
>>> one. If a compositing window manager is used, the alpha channel is
>>> used for transparency, but the image generally does not care about the
>>> alpha channel in its frame buffer.
>>>
>>
>> Does that mean there is some core location(s) where the alpha channel
>> needs to be defaulting to full opacity but currently it is not?
>>
>
> Yes, that is where the transparent areas are under a compositing window
> manager. I also remember partly translucent menus in (old versions of)
> Croquet, and having to fix the alpha channel after taking a screenshot.
>
> - Bert -
>
>
>  The olpc branch in the SVN repository has a fix for that, see
>>>
>>> http://tinyurl.com/6fhqmw
>>>
>>> - Bert -
>>>
>>
>>
>
>
>
>
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