I hope this info helps... I also had this problem (and another possibly related problem) until I replaced my new Radeon HD 6450 video card with an old GeForce 7900 GS card. You can see more details of my problem here: https://answers.launchpad.net/ubuntu/+source/apt/+question/221246
I would much rather use the Radeon card if possible.
I hope this info helps... I also had this problem (and another possibly related problem) until I replaced my new Radeon HD 6450 video card with an old GeForce 7900 GS card. You can see more details of my problem here: /answers. launchpad. net/ubuntu/ +source/ apt/+question/ 221246
https:/
I would much rather use the Radeon card if possible.