Bumblebee "optirun" with the default bridge fails with Nvidia driver 367.35

Testing Leap 42.2 Alpha3 with Nvidia driver 367.35 on an Optimus notebook with bumblebee.
Running “optirun” with the default (virtualgl) bridge fails, apparently looking for Xserver :0 instead of the usual :8.
Running “optirun -b primus” or “primusrun” apparently works as expected.
For instance:


etabeta@linux:~> optirun glxinfo
name of display: :0
etabeta@linux:~> 

...and dmesg complains:

 1750.970494] glxinfo[3783]: segfault at 10 ip 00007fe74d9aa79d sp 00007ffdddae53d0 error 4 in libGL.so.367.35[7fe74d8ed000+c8000]

Enabled repos as follows:


etabeta@linux:~> zypper lr -Eu
#  | Alias                             | Name                                                                                     | Enabled | GPG Check | Refresh | URI                                                                                                  
---+-----------------------------------+------------------------------------------------------------------------------------------+---------+-----------+---------+------------------------------------------------------------------------------------------------------
 1 | 42.2_Current_OSS                  | 42.2 Current OSS                                                                         | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/distribution/leap/42.2-Current/repo/oss/                                
 3 | Bumblebee-Project:/nVidia:/367.35 | Bumblebee-Project:/nVidia:/367.35                                                        | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/repositories/home:/Bumblebee-Project:/nVidia:/367.35/openSUSE_Leap_42.2/
 4 | home_Bumblebee-Project_Bumblebee3 | nVidia Optimus support for Linux through VirtualGL or Primus - dkms (openSUSE_Leap_42.2) | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/repositories/home:/Bumblebee-Project:/Bumblebee3/openSUSE_Leap_42.2/    
 7 | openSUSE-42.2-0                   | openSUSE-42.2-0                                                                          | Yes     | (r ) Yes  | No      | http://download.opensuse.org/distribution/leap/42.2/repo/oss/                                        
12 | repo-non-oss                      | openSUSE-Leap-42.2-Non-Oss                                                               | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/distribution/leap/42.2/repo/non-oss/                                    
15 | repo-update-non-oss               | openSUSE-Leap-42.2-Update-Non-Oss                                                        | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/update/leap/42.2/non-oss/                                               
etabeta@linux:~> 

Is it a bug or a new behaviour of the 367.35 driver? Any hint welcome.

Seems a driver bug with glx extensions that bites elsewhere too (e.g. https://devtalk.nvidia.com/default/topic/952373/linux/367-35-driver-fedora-24-glx-segmentation-faults/ ).
Everything works fine with the 367.27 driver in the following setup:


etabeta@linux:~> zypper --no-refresh se -is bumblebee bbswitch nvidia
Loading repository data...
Reading installed packages...

S | Name                   | Type    | Version      | Arch   | Repository                                                                              
--+------------------------+---------+--------------+--------+-----------------------------------------------------------------------------------------
i | bumblebee              | package | 3.2.1-2.11.1 | x86_64 | nVidia Optimus support for Linux through VirtualGL or Primus - dkms (openSUSE_Leap_42.2)
i | dkms-bbswitch          | package | 0.8-3.8      | noarch | nVidia Optimus support for Linux through VirtualGL or Primus - dkms (openSUSE_Leap_42.2)
i | dkms-nvidia            | package | 367.27-20.1  | x86_64 | Bumblebee-Project:/nVidia:/367.27                                                       
i | nvidia-compute         | package | 367.27-22.1  | x86_64 | Bumblebee-Project:/nVidia:/367.27                                                       
i | x11-video-nvidia       | package | 367.27-22.1  | x86_64 | Bumblebee-Project:/nVidia:/367.27                                                       
i | x11-video-nvidia-devel | package | 367.27-22.1  | x86_64 | Bumblebee-Project:/nVidia:/367.27                                                       
etabeta@linux:~>