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I coded WebGL a little over a year ago on a Precision "laptop" under Suse Linux. What I needed: (A) up-to-date Nvidia proprietary drivers (B) "de-blacklist myself" somewhere deep in the browser's hidden WebGL config page (I think it was about:gpu or some such back then in Chromium, but I'm not really up to date).

Yeah, I run Chrome on Ubuntu on a pretty powerful Lenovo T-something with an NVIDIA whatever optimus pain in the neck. The only way I can get it to work is to add --ignore-gpu-blacklist to the Chrome command line.

Check: /usr/share/applications/google-chrome.desktop (or something like that) You should see some lines that start with "Exec" where you can add that parameter to the end.

chrome://flags

override software rendering list

Works great for me, using Chrome on Ubuntu 12.04 on a Dell Inspiron 15R (Radeon 7700M) with the latest fglrx drivers.

Same message here (Ubuntu, Dell, Chrome). But it worked on Firefox.