Error opening TBrowser

ROOT
1

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

Hi,

I logged to lxplus as follows:
ssh -XY loccie@lxplus6.cern.ch

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 ???

2

@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.)

3

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.

4

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

5

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

6

ok, I see:

-bash-4.1$ which root
/usr/bin/root
-bash-4.1$ root-config --version
5.34/38

You need probably to open ticket to lxplus https://cern.service-now.com/service-portal/help.do
We recommend you to use latest version of ROOT (to build it from scratch or download from https://root.cern.ch/releases)

7

Thanks. I will do that.

8

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