I don't know what files you're trying to attach. .tar.gz limit in this forum is 1MB.
I think it would be of more use to us if you could send us syslog, dmesg and xorg.0.log.
That would go like this if using a terminal:
The tar.gz file will probably be less than 100K. You can upload it here easily. When replying, click on manage attachments / click on browse, select the .tar.gz file on your home-folder/raja_logs and click upload.
sudo cat /var/log/Xorg.0.log > xorg.txt
sudo cat /var/log/dmesg > dmesg.txt
sudo cat /var/log/syslog > syslog.txt
tar -cvzf rajalogs.tar.gz xorg.txt dmesg.txt syslog.txt