Error opening TBrowser

ROOT Version: 5.34/38
Platform: lxplus6 and lxplus7
Compiler: Not Provided


I logged to lxplus as follows:
ssh -XY

Then in root:
new TBrowser();

and I get the following error:
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
Error in : GLXBadContext (XID: 10486013, XREQ: 149)

whilst it used to open the Browser window until today.

Any idea ???

@loccie, how is build root? did you rebuild recently it? for me looks like your environment in lxplus was changed (possible update of GL libraries or etc.)

Thanks for your reply. I have not rebuilt anything; I use the default root version of lxplus and I have no clue of a change of any library on lxplus6 or lxplus7.

Can you send please me output of which root or which root.exe?

I have no output.I just run interactively. I log on lxplus, type root, then type new TBrowser() at root prompt.

ok, I see:

-bash-4.1$ which root
-bash-4.1$ root-config --version

You need probably to open ticket to lxplus
We recommend you to use latest version of ROOT (to build it from scratch or download from

Thanks. I will do that.

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