Ibrahim Awwal, given your environment stopped working after an upgrade, you have a completely different problem than what was scoped to this now closed report.
Hence, it will help immensely if you filed a new report with Ubuntu by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information running the following from a terminal:
ubuntu-bug xorg
Ibrahim Awwal, given your environment stopped working after an upgrade, you have a completely different problem than what was scoped to this now closed report.
Hence, it will help immensely if you filed a new report with Ubuntu by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information running the following from a terminal:
ubuntu-bug xorg
Please feel free to subscribe me to it.