<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Exchange Server">  <style></style> </head> <body> <font face="Arial, sans-serif" size="2"> <div><font color="#1F497D">Hi Everyone,</font></div> <div><font color="#1F497D"> </font></div> <div><font color="#1F497D">When I run glxgear demo it gives “Error: couldn't open display (null)” .</font></div> <div><font color="#1F497D">Then I checked /var/log/Xorg.0.log it was giving </font></div> <div><font color="#1F497D">“[3833272.585] (EE) AIGLX error: dlopen of /usr/lib/dri/swrast_dri.so failed (/usr/lib/dri/swrast_dri.so: undefined symbol: _glapi_tls_Context) “</font></div> <div><font color="#1F497D"> </font></div> <div><font color="#1F497D">Can any help me out.</font></div> <div><font color="#1F497D">I have checked in many forum but no luck I didn’t found the correct solution.</font></div> <div><font color="#1F497D"> </font></div> <div><font color="#1F497D">Have a nice day ,Thanks in advance.</font></div> <div><font color="#1F497D"> </font></div> <div><font color="#1F497D">Best Regards,</font></div> <div><font color="#1F497D">Praveen V</font></div> <div><font face="Times New Roman, serif" size="2"> </font></div> </font> </body> </html>