I have the same issue as reported in “Only one monitor works after driver 510 install” , but even after re-installation the second display is still not working. I have uninstalled all older NVIDIA drivers and installed only 510 version. Any help would be greatly appreciated.
Please run nvidia-bug-report.sh as root and attach the resulting nvidia-bug-report.log.gz file to your post.
I had the same problem. The second monitor was simply turned off in the system settings (not in the driver settings) after installation. Just turning it on solved the problem.
Thanks for the reply. After removing drivers, i forgot to restart the system. But, now its working fine.