MySQL Bugs: #55863: "Bird's Eye" visible but diagram window not updated

Bug #55863	"Bird's Eye" visible but diagram window not updated
Submitted:	9 Aug 2010 21:26	Modified:	29 Sep 2010 11:05
Reporter:	Artur Stępień	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Workbench: Modeling	Severity:	S2 (Serious)
Version:	5.2.18 OSS Beta,5.2.25, 5.2.26	OS:	Windows ( Windows 7 x64 Ultimate)
Assigned to:	Alfredo Kojima	CPU Architecture:	Any
Tags:	diagram

Description:
Diagram is not visible. Tools in diagram window are visible correctly, same as "Bird's eye". Window looks like the diagram is not drawn. Everything works correctly.

How to repeat:
It happens every time i open diagram

Also available on WB 5.2.18 OSS Beta.
I'am using latest graphic card drivers

Bug screen

Attachment: screen.jpg (image/jpeg, text), 319.03 KiB.

Exporting to PDF looks ok, it seems to be drawing error

Hello Artur,

I remember that I saw this already on my own computer using Linux.

It look like a memory/hardware issue.

I removed all what is related to Workbench including the configure settings.

I checked my hardware.

Downloaded a fresh Workbench installation and installed again.

And it not happened again.

Additionally, I take care that computer is not as busy when I use Workbench.

I'm sure it's becouse of OpenGL. It's not working correctly and theres no chanse it will be (no drivers update available).

The only way to make Workbench work is to switch Cairo but there is no such setting available.

I couldn't repeat the issue reported on 3 machines (none of them Windows 7) Vista and XP and Fedora, Ubuntu and Opensuse.

Find machine that GPU supports OpenGL but drivers don't work correctly.
Workbench wont switch to Cairo. And there is no way to make it manually. The best solution is to add setting I mentioned.

Please try starting WB with the -swrendering command line option.

It works.
Couldn't it been placed in Preferences?
Below are system specs when loading with this command:

MySQL Workbench CE for Windows version 5.2.26
Data Directory: C:\Program Files (x86)\MySQL\MySQL Workbench 5.2 CE
Cairo Version: 1.8.8
Rendering Mode: OpenGL is available on this system, but GDI was requested. Using GDI for rendering.
OS: Microsoft Windows 7 Ultimate Edition (build 7600), 64-bit
CPU: 2x Intel(R) Core(TM)2 Duo CPU     T5750  @ 2.00GHz, 4.0 GiB RAM
Video adapter info:
Adapter type: Mobile Intel(R) 965 Express Chipset Family
Chip Type: Mobile Intel(R) 965 Express Chipset Family
BIOS String: Intel Video BIOS
Video Memory: 393216 KB

I think explicit option in preferences that is equivalent to -swrendering command line option is a very useful feature to have.

Added option to force swrender to Preferences dialog.

new preference option in 5.2.28 available to force software rendering

The main docs have been updated. An entry has also been added to the 5.2.8 changelog:

When OpenGL rendering was selected, the EER Diagram area was not redrawn due to faulty OpenGL drivers.

The work around was to launch MySQL Workbench using the -swrendering command line option.

MySQL Workbench has been changed to also include an option to select software rendering in the Workbench Preferences dialog.