Region overlap does not work on linux anymore #44283

New Issue

Todor Imreorov · 2015-04-06T14:43:09+02:00

Todor Imreorov commented

2015-04-06 14:43:09 +02:00

System Information
Manjaro linux (arch based) - latest, 64 bit, open source radeon driver,
Ati mobility radeon 4650

Blender Version
Broken: 2.74 rc3

Short description of error
Region overlap does not seem to work anymore - with the open source ati driver. Here is a screenshot:

This is not a problem under windows 7. It seems to be a linux related bug, possibly due to the open source ATI driver.

Exact steps for others to reproduce the error
Open blender and enable "region overlap" under "window draw method".

**System Information** Manjaro linux (arch based) - latest, 64 bit, open source radeon driver, Ati mobility radeon 4650 **Blender Version** Broken: 2.74 rc3 **Short description of error** Region overlap does not seem to work anymore - with the open source ati driver. Here is a screenshot: ![Screenshot_2015-04-06_15-39-55.png](https://archive.blender.org/developer/F158996/Screenshot_2015-04-06_15-39-55.png) This is not a problem under windows 7. It seems to be a linux related bug, possibly due to the open source ATI driver. **Exact steps for others to reproduce the error** Open blender and enable "region overlap" under "window draw method".

Todor Imreorov commented

2015-04-06 14:43:09 +02:00

Changed status to: 'Open'

Todor Imreorov commented

2015-04-06 14:43:09 +02:00

Added subscriber: @TodorImreorov

ronan ducluzeau commented

2015-04-06 15:02:09 +02:00

Added subscriber: @zeauro

ronan ducluzeau commented

2015-04-06 15:02:09 +02:00

It works here. Ubuntu 14.04 64bits Nvidia Titan black with proprietary driver.

Are you sure region color of your theme have an alpha value below 1 ?

It works here. Ubuntu 14.04 64bits Nvidia Titan black with proprietary driver. Are you sure region color of your theme have an alpha value below 1 ?

Todor Imreorov commented

2015-04-06 15:44:18 +02:00

I am positive. You are with a different graphics driver to mine :)

Nvidia has always had better support on linux

I am positive. You are with a different graphics driver to mine :) Nvidia has always had better support on linux

Sergey Sharybin commented

2015-04-07 09:40:57 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2015-04-07 09:40:57 +02:00

Does it work in:

Current stable release 2.74
Latest builds from builder.blender.org
Using blender-softwaregl script from the official archives?

Does it work in: - Current stable release 2.74 - Latest builds from builder.blender.org - Using blender-softwaregl script from the official archives?

Todor Imreorov commented

2015-04-07 12:23:48 +02:00

Doesnt work in current stable release,
Doesnt work in Latest builds
Desnt work with softwaregl script

some information on the graphics card driver:

[fox@darkstar ~]$ lspci | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV730/M96 [Mobility Radeon HD 4650/5165]

[fox@darkstar ~]$ find /dev -group video
/dev/fb0
/dev/dri/card0
/dev/dri/renderD128
/dev/dri/controlD64
/dev/video0


[fox@darkstar ~]$ glxinfo | grep -i vendor
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
OpenGL vendor string: X.Org

Doesnt work in current stable release, Doesnt work in Latest builds Desnt work with softwaregl script some information on the graphics card driver: ``` [fox@darkstar ~]$ lspci | grep VGA 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV730/M96 [Mobility Radeon HD 4650/5165] ``` ``` [fox@darkstar ~]$ find /dev -group video /dev/fb0 /dev/dri/card0 /dev/dri/renderD128 /dev/dri/controlD64 /dev/video0 ``` ``` [fox@darkstar ~]$ glxinfo | grep -i vendor server glx vendor string: SGI client glx vendor string: Mesa Project and SGI OpenGL vendor string: X.Org ```

Todor Imreorov commented

2015-04-07 12:35:43 +02:00

[fox@darkstar blender-2.74-linux-glibc211-x86_64]$ mhwd-gpu --status 
Using default
Default lib32 support: true
:: status
  lib32-libGl: '/usr/lib32/mesa/libGL.so.1.2.0'
  lib32-libGLESv1: '/usr/lib32/mesa/libGLESv1_CM.so.1.1.0'
  lib32-libGLESv2: '/usr/lib32/mesa/libGLESv2.so.2.0.0'
  lib32-libEGL: '/usr/lib32/mesa/libEGL.so.1.0.0'
  libGl: '/usr/lib/mesa/libGL.so.1.2.0'
  libGLESv1: '/usr/lib/mesa/libGLESv1_CM.so.1.1.0'
  libGLESv2: '/usr/lib/mesa/libGLESv2.so.2.0.0'
  libEGL: '/usr/lib/mesa/libEGL.so.1.0.0'
  libglx: '/usr/lib/xorg/modules/extensions/libglx.xorg'
  xorg configuration file: '/etc/X11/mhwd.d/ati.conf'

Let me know If I can help with other information :)

![Screenshot_2015-04-07_13-30-53.png](https://archive.blender.org/developer/F159465/Screenshot_2015-04-07_13-30-53.png) ``` [fox@darkstar blender-2.74-linux-glibc211-x86_64]$ mhwd-gpu --status Using default Default lib32 support: true :: status lib32-libGl: '/usr/lib32/mesa/libGL.so.1.2.0' lib32-libGLESv1: '/usr/lib32/mesa/libGLESv1_CM.so.1.1.0' lib32-libGLESv2: '/usr/lib32/mesa/libGLESv2.so.2.0.0' lib32-libEGL: '/usr/lib32/mesa/libEGL.so.1.0.0' libGl: '/usr/lib/mesa/libGL.so.1.2.0' libGLESv1: '/usr/lib/mesa/libGLESv1_CM.so.1.1.0' libGLESv2: '/usr/lib/mesa/libGLESv2.so.2.0.0' libEGL: '/usr/lib/mesa/libEGL.so.1.0.0' libglx: '/usr/lib/xorg/modules/extensions/libglx.xorg' xorg configuration file: '/etc/X11/mhwd.d/ati.conf' ``` Let me know If I can help with other information :)

Sergey Sharybin commented

2015-04-07 17:23:06 +02:00

Please try forcing triple buffer window draw method in the used settings. Probably automatic one is not detected correct.

Todor Imreorov commented

2015-04-07 18:46:41 +02:00

that did it!! :)
Setting it to "Triple buffer" made region overlap work again!

So the problem is that Blender does not pick up the correct window draw method when set to "Automatic"

that did it!! :) Setting it to "Triple buffer" made region overlap work again! So the problem is that Blender does not pick up the correct window draw method when set to "Automatic"

Sergey Sharybin commented

2015-04-07 18:50:32 +02:00

Well, automatic chooses the best one from those which are considered stable. It kinda depends on particular card, system and driver and depending on that triple buffer might be stable/unstable.

Antonis Ryakiotakis commented

2015-04-07 19:18:25 +02:00

Added subscriber: @Psy-Fi

Antonis Ryakiotakis commented

2015-04-07 19:18:25 +02:00

This has been disabled explicitly in the code because it used to fail in the past. Discussed a bit with @Sergey on irc and agree that we can't really decide on runtime if all drivers fail (keeping a database is really difficult and not really possible since drivers fail all the time). Automatic is the safest option here so we'll keep as is. Closing for now.

Antonis Ryakiotakis commented

2015-04-07 19:18:38 +02:00

Changed status from 'Open' to: 'Archived'

Antonis Ryakiotakis closed this issue

2015-04-07 19:18:38 +02:00

Antonis Ryakiotakis self-assigned this 2015-04-07 19:18:38 +02:00

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Region overlap does not work on linux anymore #44283