Comment 6 for bug 1880710

Running this in focal, I started the chromium snap with debug enabled as Oliver suggested in IRC. When the tab went blank (black in the incognito), I got a never ending stream of these errors:

[3245519:3245983:0604/121824.098686:WARNING:syncer_proto_util.cc(361)] Error posting from syncer: Response Code (bogus on error): 401 Content-Length (bogus on error): 5 Server Status: SYNC_AUTH_ERROR
...
[3245733:3245733:0604/122913.673580:ERROR:gl_context_glx.cc(227)] Couldn't make context current with X drawable.
[3245733:3245733:0604/122913.673654:ERROR:gles2_command_buffer_stub.cc(327)] ContextResult::kTransientFailure: Failed to make context current.
[3245733:3245733:0604/122913.674703:WARNING:x11_util.cc(1522)] X error received: serial 824243, error_code 170 (GLXBadContext), request_code 154, minor_code 26 (Unknown)
[3245733:3245733:0604/122913.676000:WARNING:x11_util.cc(1522)] X error received: serial 824244, error_code 170 (GLXBadContext), request_code 154, minor_code 4 (Unknown)
[3245733:3245733:0604/122913.676936:WARNING:x11_util.cc(1522)] X error received: serial 824305, error_code 170 (GLXBadContext), request_code 154, minor_code 26 (Unknown)
[3245733:3245733:0604/122913.677780:WARNING:x11_util.cc(1522)] X error received: serial 824306, error_code 170 (GLXBadContext), request_code 154, minor_code 4 (Unknown)
[3245733:3245733:0604/122913.681235:ERROR:gl_context_glx.cc(227)] Couldn't make context current with X drawable.