Problem with ROOT v5-28-00c

ROOT
1

Hi,
I have recently installed the newest ROOT v5-28-00c on a SLC4/i686 (a VirtualBox’es machine running on a Windows Vista host).
With this new ROOT version, one of my graphical programs simply dies.

[localhost] > ./eventview
Info in TGeoManager::TGeoManager: Geometry icarus, Simple ICARUS
geometry created
Info in TGeoManager::SetTopVolume: Top volume is tiptop. Master
volume is tiptop
Info in TGeoManager::CheckGeometry: Fixing runtime shapes…
Info in TGeoManager::CheckGeometry: …Nothing to fix
Info in TGeoManager::CloseGeometry: Counting nodes…
Info in TGeoManager::Voxelize: Voxelizing…
Info in TGeoManager::CloseGeometry: Building cache…
Info in TGeoNavigator::BuildCache: — Maximum geometry depth set to 100
Info in TGeoManager::CloseGeometry: 10 nodes/ 7 volume UID’s in
Simple ICARUSgeometry
Info in TGeoManager::CloseGeometry: ----------------modeler
ready----------------
Info in TGeoManager::Export: Exporting icarus Simple ICARUS geometry
as root file. Optimizations streamed.
Error in TGLWidget::CreateWindow: No good OpenGL visual found!
Error in TEveViewer::SpawnGLViewer: Insufficient support from the
graphics hardware. Aborting.

There were no problems with the “older” ROOT v5-28-00b version:

[localhost] > ./eventview
Info in TGeoManager::TGeoManager: Geometry icarus, Simple ICARUS
geometry created
Info in TGeoManager::SetTopVolume: Top volume is tiptop. Master
volume is tiptop
Info in TGeoManager::CheckGeometry: Fixing runtime shapes…
Info in TGeoManager::CheckGeometry: …Nothing to fix
Info in TGeoManager::CloseGeometry: Counting nodes…
Info in TGeoManager::Voxelize: Voxelizing…
Info in TGeoManager::CloseGeometry: Building cache…
Info in TGeoNavigator::BuildCache: — Maximum geometry depth set to 100
Info in TGeoManager::CloseGeometry: 10 nodes/ 7 volume UID’s in
Simple ICARUS geometry
Info in TGeoManager::CloseGeometry: ----------------modeler
ready----------------
Info in TGeoManager::Export: Exporting icarus Simple ICARUS geometry
as root file. Optimizations streamed.
Info in TGeoManager::Import: Reading geometry from file: icageom.root
Info in TGeoManager::CloseGeometry: Geometry loaded from file…
Info in TGeoManager::SetTopVolume: Top volume is tiptop. Master
volume is tiptop
Info in TGeoManager::CloseGeometry: Voxelization retrieved from file
Info in TGeoManager::CloseGeometry: 10 nodes/ 7 volume UID’s in
Simple ICARUS geometry
Info in TGeoManager::CloseGeometry: ----------------modeler
ready----------------
Info in TGeoManager::SetVisLevel: Automatic visible depth disabled

Do you have any suggestions how it can be solved?

IZA

2

Does any OpenGL-based program work on your virtual machine? glxgears? glxinfo?
You said, before it worked - did you have the SAME configuration - SLC on VirtualBox?

3

Ok, I can reproduce the problem on my VirtualBox and SLC 4.7. A month ago Matevz has changed the default size of depth buffer requested by gl widget - it was 16 before and it’s 24 now (and this fails in emulated linux).
We have to think how to fix it.

4

The configuration of SLC was not changed. I have only compiled a new version of ROOT.
After running glxinfo I get this info:

[localhost] /home/picia2206 > glxinfo
name of display: :0.0
display: :0 screen: 0
direct rendering: No
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_EXT_import_context, GLX_OML_swap_method, GLX_SGI_make_current_read,
GLX_SGIS_multisample, GLX_SGIX_fbconfig
client glx vendor string: SGI
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_allocate_memory,
GLX_MESA_swap_control, GLX_MESA_swap_frame_usage, GLX_OML_swap_method,
GLX_OML_sync_control, GLX_SGI_make_current_read, GLX_SGI_swap_control,
GLX_SGI_video_sync, GLX_SGIS_multisample, GLX_SGIX_fbconfig,
GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group
GLX extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method,
GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_fbconfig
OpenGL vendor string: Mesa project: www.mesa3d.org
OpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.2 (1.5 Mesa 6.2.1)
OpenGL extensions:
GL_ARB_depth_texture, GL_ARB_imaging, GL_ARB_multitexture,
GL_ARB_point_parameters, GL_ARB_point_sprite, GL_ARB_shadow,
GL_ARB_shadow_ambient, GL_ARB_texture_border_clamp,
GL_ARB_texture_cube_map, GL_ARB_texture_env_add,
GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar,
GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat,
GL_ARB_transpose_matrix, GL_ARB_window_pos, GL_EXT_abgr, GL_EXT_bgra,
GL_EXT_blend_color, GL_EXT_blend_func_separate, GL_EXT_blend_logic_op,
GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_clip_volume_hint,
GL_EXT_copy_texture, GL_EXT_draw_range_elements, GL_EXT_fog_coord,
GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels, GL_EXT_point_parameters,
GL_EXT_polygon_offset, GL_EXT_rescale_normal, GL_EXT_secondary_color,
GL_EXT_separate_specular_color, GL_EXT_shadow_funcs,
GL_EXT_stencil_two_side, GL_EXT_stencil_wrap, GL_EXT_subtexture,
GL_EXT_texture, GL_EXT_texture3D, GL_EXT_texture_edge_clamp,
GL_EXT_texture_env_add, GL_EXT_texture_env_combine,
GL_EXT_texture_env_dot3, GL_EXT_texture_lod_bias, GL_EXT_texture_object,
GL_EXT_texture_rectangle, GL_EXT_vertex_array, GL_APPLE_packed_pixels,
GL_ATI_texture_env_combine3, GL_ATI_texture_mirror_once,
GL_ATIX_texture_env_combine3, GL_IBM_texture_mirrored_repeat,
GL_INGR_blend_func_separate, GL_MESA_pack_invert, GL_MESA_ycbcr_texture,
GL_NV_blend_square, GL_NV_point_sprite, GL_NV_texgen_reflection,
GL_NV_texture_rectangle, GL_SGIS_generate_mipmap,
GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp,
GL_SGIS_texture_lod, GL_SGIX_depth_texture, GL_SGIX_shadow,
GL_SGIX_shadow_ambient, GL_SUN_multi_draw_arrays
glu version: 1.3
glu extensions:
GLU_EXT_nurbs_tessellator, GLU_EXT_object_space_tess

visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat

0x22 24 tc 0 24 0 r y . 8 8 8 0 0 16 0 0 0 0 0 0 0 None
0x23 24 tc 0 24 0 r y . 8 8 8 0 0 16 8 16 16 16 0 0 0 None
0x24 24 tc 0 32 0 r y . 8 8 8 8 0 16 8 16 16 16 16 0 0 None
0x25 24 tc 0 32 0 r . . 8 8 8 8 0 16 8 16 16 16 16 0 0 None

IZA

5

Read my second answer. I can reproduce the problem. Before I can fix it I have to discuss this with Matevz Tadel (I guess he had serious reasons to make this modification, and in fact I can not even say it’s a bug).

If you want to fix it ASAP and can recompile/relink your ROOT on SLC, you can change the code: in $ROOTSYS/graf3d/gl/src/TGLFormat.cxx, there are lines:

#ifdef WIN32
   fDepthSize(32),
#else
   fDepthSize(24), //<--- here you have to change 24 to 16
#endif

and then recompile. This must help.