On Wed, 2 Dec 2020 at 16:51, Doug Evans <d...@google.com> wrote: > > Btw, if I may ask another dumb question, I get this: > > @ruffy:build-arm$ ./qemu-system-arm -M virt -monitor stdio > Unable to init server: Could not connect: Connection refused > QEMU 5.1.93 monitor - type 'help' for more information > (qemu) gtk initialization failed > <exit> > > If I add "-display none" then it works, but it's odd that it's trying to > initialize with gtk here ($DISPLAY isn't set, there is no X present).
That's expected. By default we try to create a GUI window. If DISPLAY is not set, then that fails, which is why we print "gtk initialization failed" and exit. This is the same behaviour as other GUI apps: $ DISPLAY= xterm xterm: Xt error: Can't open display: xterm: DISPLAY is not set $ DISPLAY= firefox Unable to init server: Broadway display type not supported: Error: cannot open display: $ DISPLAY= evince Unable to init server: Could not connect: Connection refused Cannot parse arguments: Cannot open display: If you don't want graphics you should tell QEMU you don't want graphics (eg with '-display none'). This seems to me more helpful to most users than the alternative (if you know you don't want the GUI then it's easy to disable it; but most non-sophisticated users do want it). thanks -- PMM
