https://bugs.winehq.org/show_bug.cgi?id=56877
Bug ID: 56877 Summary: mozaBook: CEF black box instead of content Product: Wine Version: 9.11 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: major Priority: P2 Component: -unknown Assignee: wine-bugs@winehq.org Reporter: balint.mate@mozaweb.com Distribution: ---
Created attachment 76683 --> https://bugs.winehq.org/attachment.cgi?id=76683 sample video and log
- mozaBook is an educational presentation software developed by us (Mozaik Education) which uses our custom windowing library based on Windows GDI+.
- We use CEF in several windows for example Number line (which is an HTML application). Sample in the video. - If I move the mouse pointer across the header the CEF content becames black however if I move out the pointer from the side or the bottom it's becoming black only if I click outside of the CEF window. - The CEF content only comes back when I click inside of the window in such a way that it needs to repaint (refresh) itself. - It does not work in any version of the mozaBook (64 bit version).
Wine version: wine-9.11 (Staging)
Possibly solution tried (unsuccessful): - --no-sandbox - --disable-gpu - --disable-gpu-compositing - Setting the WINEDLLOVERRIDES=libglesv2=d environment variable. - --use-views - --off-screen-rendering-enabled - Disallowing the window manager to decorate and control the windows. - Emulating a virtual desktop.
Microsoft corefonts and gdiplus were installed with the winetricks program.
The software can be freely downloaded and tested. Download URL: https://download.us.mozaweb.com/mozabook/mozaBook64_v2024.2.105_Setup_MIN.ex...