Opened 4 years ago

Closed 2 years ago

Last modified 2 years ago

#20866 closed defect (fixed)

OpenGL software rendering is broken on certain Linux systems.

Reported by: yawning Owned by: tbb-team
Priority: Medium Milestone:
Component: Applications/Tor Browser Version:
Severity: Normal Keywords: TorBrowserTeam201808
Cc: Actual Points:
Parent ID: Points:
Reviewer: Sponsor:


Software rendering with modern Mesa uses llvmpipe, and thus depends on libLLVM.

Depending on which version of the libstdc++ the system's libLLVM was compiled against, the software rendering DRI module ( can fail to load, because Tor Browser includes as part of the bundle (and in the LD_LIBRARY_PATH).

Snipped strace output, with a bunch of env vars set:

Tor/ version `GLIBCXX_3.4.22' not found (required by /usr/lib/

This is non-fatal, but webGL will be broken on those systems.

Child Tickets

#25485closedtbb-teamBrowser/TorBrowser/Tor/ version `CXXABI_1.3.11' not found (required by /usr/lib/x86_64-linux-gnu/ Browser

Change History (2)

comment:1 Changed 2 years ago by gk

Resolution: fixed
Status: newclosed

Fixed by #25485.

comment:2 Changed 2 years ago by gk

Keywords: TorBrowserTeam201808 added
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