====== Comandi utili per PC ======

===== Emulatore per Raspberry =====

<code>
qemu-system-arm -kernel kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1" -hda 2015-05-05-raspbian-wheezy.img -redir tcp:5022::22 -redir tcp:5080::80
</code>

===== Bug fix per Nvidia =====

**WARNING:** This bug has been widely reported and has *many* automatic subscribers. Please be considerate.

**If you need help:** try searching and asking on [[http://discourse.ubuntu.com|http://discourse.ubuntu.com]] or [[http://ubuntuforums.org|http://ubuntuforums.org]] or contacting a nearby user group (see [[http://loco.ubuntu.com|http://loco.ubuntu.com]] or search for "LUG" in your area). Link back to this bug for clarity.

This seems to fix it (at least for one version upgrade) for many people

<code>
$ sudo dpkg-reconfigure nvidia-331
</code>

after that…

<code>
$ sudo dpkg-reconfigure nvidia-331-uvm
</code>

(some users may be on the versions of these packages suffixed with -updates )