# libEGL warning :DRI2 failed to authenticate while launching rviz **URL:** \ **Category:** General Questions\ **Created:** [May 14, 2020, 5:21am UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522 "2020-05-14T05:21:32Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![msfarhan123456](https://forum.ubiquityrobotics.com/letter_avatar_proxy/v4/letter/m/b9e5f3/32.png) [@msfarhan123456](https://forum.ubiquityrobotics.com/u/msfarhan123456)\ **Post date:** [May 14, 2020, 5:21am UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522/1 "2020-05-14T05:21:32Z")
Hello everyone, I’m launching rviz for opening my urdf I’m getting the following error libEGL warning : DRI2: failed to authenticate i have tried this method [raspbian - Qt applications don't work due to libEGL - Raspberry Pi Stack Exchange](https://raspberrypi.stackexchange.com/questions/61078/qt-applications-dont-work-due-to-libegl) still not working ![Screenshot%20from%202020-05-14%2009-38-21](https://frm.ubiquityrobotics.com/uploads/default/original/1X/c31c1759ad89c6bae22b5b9bfe5737da596d05ff.png) but still error persists Thanking you ---
**Author:** ![anfederman](https://forum.ubiquityrobotics.com/user_avatar/forum.ubiquityrobotics.com/anfederman/32/141_2.png) [@anfederman](https://forum.ubiquityrobotics.com/u/anfederman)\ **Post date:** [May 15, 2020, 4:57pm UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522/2 "2020-05-15T16:57:14Z")
Does ’ rosrun rviz rviz ’ work? While Rviz will run on a Pi, most people run it on a workstation. LibEGL is more likely a display issue. ---
**Author:** ![msfarhan123456](https://forum.ubiquityrobotics.com/letter_avatar_proxy/v4/letter/m/b9e5f3/32.png) [@msfarhan123456](https://forum.ubiquityrobotics.com/u/msfarhan123456)\ **Post date:** [May 16, 2020, 4:27am UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522/3 "2020-05-16T04:27:35Z")
rosrun rviz rviz is not working , LibeGL how to solve that ? do you have any idea ? ---
**Author:** ![rohbotics](https://forum.ubiquityrobotics.com/user_avatar/forum.ubiquityrobotics.com/rohbotics/32/222_2.png) [@rohbotics](https://forum.ubiquityrobotics.com/u/rohbotics)\ **Post date:** [May 16, 2020, 11:05pm UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522/4 "2020-05-16T23:05:56Z")
Hey @msfarhan123456, can you please post the entire output of rviz when you try to launch it? What image are you using for the Pi? That screenshot doesn’t look like our image, which uses LXDE. ---
**Author:** ![msfarhan123456](https://forum.ubiquityrobotics.com/letter_avatar_proxy/v4/letter/m/b9e5f3/32.png) [@msfarhan123456](https://forum.ubiquityrobotics.com/u/msfarhan123456)\ **Post date:** [May 18, 2020, 4:56am UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522/5 "2020-05-18T04:56:13Z")
Hey i can launch rviz from `rosrun rviz rviz` it will open empty but if i launch using my files like `roslaunch slam display.launch` with stl files in it im getting error like this ![rvizerror](https://frm.ubiquityrobotics.com/uploads/default/original/1X/4457940825afe86e2c335e70ad994c9527c962b9.png) and also im trying to achieve to load rviz in x11vnc for giving access to people who are in remote places . a help will be apprecitated . Thanking you m s farhan ---
**Author:** ![Insaan12](https://forum.ubiquityrobotics.com/letter_avatar_proxy/v4/letter/i/f17d59/32.png) [@Insaan12](https://forum.ubiquityrobotics.com/u/Insaan12)\ **Post date:** [June 1, 2022, 7:36pm UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522/6 "2022-06-01T19:36:57Z")
Pls help me also on this topic if it is resolved. ---
**Author:** ![Insaan12](https://forum.ubiquityrobotics.com/letter_avatar_proxy/v4/letter/i/f17d59/32.png) [@Insaan12](https://forum.ubiquityrobotics.com/u/Insaan12)\ **Post date:** [June 1, 2022, 7:37pm UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522/7 "2022-06-01T19:37:46Z")
I am also stuck on this point and I have to submit my final year project. ---
**Author:** ![Insaan12](https://forum.ubiquityrobotics.com/letter_avatar_proxy/v4/letter/i/f17d59/32.png) [@Insaan12](https://forum.ubiquityrobotics.com/u/Insaan12)\ **Post date:** [June 1, 2022, 7:38pm UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522/8 "2022-06-01T19:38:50Z")
@msfarhan123456 @rohbotics