Hi all, I have just _upgraded_ (ie. not clean install) from 11.10 to 12.04 on my dual-boot Lenovo E420s (Ubuntu 12.04 / Windows 7) using the distribution upgrade button in the update manager.
I had problems at first, as the remnants of Gnome Shell gave me all sorts of headaches. So, I removed all the Gnome Shell repos, and re-installed the unity packages from scratch. After a good 6 months away from it, Unity is fantastic. I am more than happy to stay with it, and not go back to Gnome Shell. I have only one issue, unity doesn't actually load properly in the first place. I'll try to explain what's happening in the hope that someone can help me diagnose the issue. - I start up, and select Ubuntu from the dual boot menu. - Then the screen goes black, with a non-blinking cursor in the top-right of the screen. - Then I see the "low-graphics" mode dialog. This dialog doesn't respond to anything. - I use ALT+CTRL+F3 to drop to tty3. (tty1 and tty2 don't respond) - I use 'sudo service gdm restart' to bounce the GDM. - then I see the login pages, and everything is normal from then on. As far as I can tell, I am using Unity 3D when I log in. I have a separate discrete graphics card, which doesn't sit well with Linux, but the built-in processor is not underpowered. However, I suspect that this is confusing gdm when it starts, and so it is showing me this screen. Is anyone else having this issue? Can anyone help me resolve it? I don't really know where to start looking unfortunately... but would really appreciate any advice. It's not the end of the world... as I have a workaround... but would love to get it resolved. Cheers!
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