Same here with radeonsi drivers on graphic card : "Bonaire XTX [Radeon R7 260X] ".. . I try enable ppa:oibaf/graphics-drivers and i have issue around "libgbm1":
$ sudo apt-get install libgbm1 -s Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libgbm1 : Depends: libgl1-mesa-dri (= 10.6~git1503140730.f68a97~gd~t) E: Unable to correct problems, you have held broken packages. I have upgrade from ubuntu 14.04.1 to 14.04.2 (LTS Enablement Stacks) whith: $ sudo apt-get install --install-recommends linux-generic-lts-utopic xserver-xorg-lts-utopic libgl1-mesa-glx-lts-utopic libegl1-mesa-drivers- lts-utopic https://wiki.ubuntu.com/Kernel/LTSEnablementStack Regards -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1431714 Title: [xorg-edgers] Held broken packages (libgbm1) from Xorg-edgers PPA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1431714/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
