<div dir="ltr"><div>Walter:</div><div> </div><div>Thanks for the data . . . seems like in the case of Lu on my computer it is F1 that returns the GUI . . . hilarious.</div><div> </div><div>F </div></div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jan 25, 2020 at 11:36 PM Walter Lapchynski <<a href="mailto:wxl@ubuntu.com">wxl@ubuntu.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Sat, Jan 25, 2020 at 03:06:28PM -0800, Fritz Hudnut wrote: > I was going to boot Lu 20.04…but for some reason the > computer booted U-MATE 20.04 Oh, these computers and their capricious ways… 😉 > I guess the only one I didn't try was F1??? "You never know until you find out" [Ned's Atomic Dustbin][1] Incidentially, I have seen cases where the key to return to the GUI was F7 and cases where it was F1, across different Ubuntu flavors. It's always true that the number of active ttys is six, as you can see with `grep tty /etc/default/console-setup`. You can also see this in `systemd` with `grep NAutoVTs /etc/systemd/logind.conf`. An interesting thing about at least current systemd is that ttys are created on-demand thus the reason for "Auto" in that key. The kernel gives a lot more (`ls -h /dev/tty[1-9]* | wc -l` says 63) but only the ttys that have getty running on them are accessible as virtual terminals. X runs on a tty that doesn't have getty running. You can see what's going on with something like for t in {1..7}; do ps --no-headers --tty /dev/tty$t; done That said, all twelve function keys are defined with control and alt to switch between the different ttys (aka consoles, virtual terminals), which you can see with the likes of dumpkeys | grep \ "^[[:space:]]*control[[:space:]]*alt[[:space:]]*keycode.*Console_" Actually, if you just do `dumpkeys | grep Console` you'll find there are a whole plethora of shortcuts for switching between the terminals. The only question remaining is why does X end up on tty7 sometimes and other times not? Actually, I think this is circumstantial. Lubuntu 18.04 and previous, like Ubuntu MATE and Ubuntu proper and every other flavor of Ubuntu except for Kubuntu, all used lightdm for their display manager. Kubuntu has long used sddm, and so has Lubuntu since after 18.04. Incidentially, the two display managers have different feelings about what tty to use. In lightdm's case, [they've had it set to 7 for 9 years][2], ever since they first added support for users to define the specific tty you want to use. This is changed to use 1 simply by editing /etc/lightdm/lightdm.conf (you will likely have to create it) as such and then restarting the display manager [LightDM] minimum-vt=1 In regards to sddm, [when they added support for a specific tty][3], they set the default as 7. However, when systemd came around, they [conditionally set it to 1 or 7][4] with the former being preferred in the case of systemd. Why that is, I don't know, but it's easily changed as above, except in this case, with /etc/sddm.conf, to 7 with [X11] MinimumVT=7 So, ok, maybe some things are a bit different. But not really. [1]: <a href="https://www.youtube.com/watch?v=LlMB9svNRzo" rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=LlMB9svNRzo</a> [2]: <a href="https://github.com/canonical/lightdm/commit/5372aa1c34db925fabae586e6003d58908e9e307" rel="noreferrer" target="_blank">https://github.com/canonical/lightdm/commit/5372aa1c34db925fabae586e6003d58908e9e307</a> [3]: <a href="https://github.com/sddm/sddm/commit/af8d253d119104ec37059f8920aceae6b204b307" rel="noreferrer" target="_blank">https://github.com/sddm/sddm/commit/af8d253d119104ec37059f8920aceae6b204b307</a> [4]: <a href="https://github.com/sddm/sddm/commit/3f9c18b5129a7110c5974036feb8b210f46ffc4a" rel="noreferrer" target="_blank">https://github.com/sddm/sddm/commit/3f9c18b5129a7110c5974036feb8b210f46ffc4a</a> -- @wxl | polka.bike C563 CAC5 8BE1 2F22 A49D 68F6 8B57 A48B C4F2 051A </blockquote></div>