[etoys-notify] [JIRA] Updated: (SQ-400) Screen refresh problem

[Bert Freudenberg (JIRA)]

     [ http://tracker.squeakland.org/browse/SQ-400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bert Freudenberg updated SQ-400:
--------------------------------

    Priority: Blocker  (was: Optional)

Reproduced on an XO-1 running F11, see http://wiki.laptop.org/go/F11_for_XO-1 (I tried on build 10 which includes etoys-4.0.2339). It works fine under Sugar, the problem only shows when switching to GNOME using the Sugar control panel and running Etoys from the menu.

It happens when resizing the OS window using the window frame's maximize button. When resizing using the window frame borders it works fine. Clicking Etoys' full screen button works, too. It is only in "maximized" mode.

Also, while in the broken/maximized state, Squeak consumes significantly more CPU. Unmaximizing restores CPU utilization back to normal. Profiling might reveal what it is doing.

Interestingly, it works fine on an XO-1.5 running virtually identical software http://wiki.laptop.org/go/F11_for_1.5

> Screen refresh problem
> ----------------------
>
>                 Key: SQ-400
>                 URL: http://tracker.squeakland.org/browse/SQ-400
>             Project: squeakland
>          Issue Type: Bug
>          Components: etoys, etoys-linux
>            Reporter: Bert Freudenberg
>            Priority: Blocker
>             Fix For: etoys 5 and showcase
>
>         Attachments: Photo 6.jpg
>
>
> When starting Etoys4-ToGo-RC under Ubuntu 8.04 (netbook edition as default on Classmate 3, but switched to classic desktop view), the screen remains black on startup (see attachment). Screen updates only every other second or so.
> This does not happen in the "mobile desktop" view. In the classic mode, double-clicking the title bar fixes it (maximizes window although it was already almost maximized). The car animates smoothly. Double-clicking title bar again, to go back to original size, restores the problem. Black screen at first, then jumpy animation. 

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