I tried lxc.aa_profile = unconfined but it didn't seem to help. So I guess I'll live with running X as root for the moment (and with having to recreate those /dev entries on every boot, what's up with that?)
On Tue, Sep 13, 2016 at 3:33 PM, Dan Kegel <[email protected]> wrote: > Hey all, > I'm running X inside lxc containers on ubuntu 16.04. > The script I'm using to tweak lxc configuration to support X is > http://kegel.com/linux/lxc-opengl-demo/install-x.sh.txt > Seems to work fine for intel and nvidia, but for amd graphics (two > different systems so far), it complains > Fatal server error: AddScreen/ScreenInit failed for driver 0 > strace shows that X can't open /proc/mtrr. > Running startx as root works around the problem, but that shouldn't be needed. > Can I buy a clue here? Thanks! > - Dan > > p.s. To reproduce: > > # Bring down X > host$ sudo systemctl start multi-user.target > # Create a container, add a user, give him sudo, start in foreground > host$ sudo lxc-create -n video -t download -- --dist ubuntu --release > xenial --arch amd64 > host$ wget http://kegel.com/linux/lxc-opengl-demo/install-x.sh > host$ sudo sh install-x.sh host video > host$ sudo lxc-start -n vdeo > host$ sudo lxc-attach -n video adduser fred > host$ sudo lxc-attach -n video vi /etc/group # add fred to sudo group > # Restart the container in the foreground > host$ sudo lxc-stop -n vdeo > host$ sudo lxc-start -n video -F > # Log in to the guest as user fred, then: > video$ wget http://kegel.com/linux/lxc-opengl-demo/install-x.sh > # Alas, you have to run install-x.sh guest every time you start the > container, to recreate /dev stuff. > video$ sudo sh install-x.sh guest > # Only if you're using nvidia hardware: Install nvidia driver that > matches outer host. Careful. e.g. > #video$ sudo apt install nvidia-340 > # Finally, start x in the container > video$ echo "exec xterm" > .xinitrc > video$ startx -- vt9 > > This should give you an xterm with working keyboard and mouse, capable > of running glxgears, etc. _______________________________________________ lxc-users mailing list [email protected] http://lists.linuxcontainers.org/listinfo/lxc-users
