Re: Reasons for keeping sc(4) and libvgl ?
- Reply: Cejka Rudolf : "Re: Reasons for keeping sc(4) and libvgl ?"
- In reply to: Emmanuel Vadot : "Reasons for keeping sc(4) and libvgl ?"
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Date: Mon, 29 Nov 2021 08:56:56 UTC
Hello, I have one problem or two with VT in FreeBSD 12. I wrote a question in freebsd-stable what to do, but without response, so I still have to use SC. Please, could you look at it? There is not configured device /dev/console without monitor after upgrade from 11 to 12 and device /dev/kbdmux0 is busy using VT but not with SC. Subject: Unable to grab keyboard with VT on a headless node in stable/12 Hello, I have a headless node without monitor and without keyboard. There is just network and USB card reader in keyboard mode. In stable/11, there was no problem to disconnect USB card reader from kbdmux using kbdcontrol -A ukbd0 < /dev/console and open /dev/ukbd0 in a program. However, under stable/12 it works just with connected monitor. Without monitor, there is an error: # kbdcontrol < /dev/console -bash: /dev/console: Device not configured Furthermore with default VT, it is also impossible to use /dev/kbdmux0: # kbdcontrol < /dev/kbdmux0 -bash: /dev/kbdmux0: Device busy I have found a workaround using SC, where it is possible to atleast open /dev/kbdmux0 and use kbdcontrol -A ukbd0 < /dev/kbdmux0, but why keyboard operation is now dependend on connected monitor? And why VT does not allow to open /dev/kbdmux0? Thank you. -- Rudolf Cejka <cejkar at fit.vut.cz> http://www.fit.vut.cz/~cejkar Brno University of Technology, Faculty of Information Technology Bozetechova 2, 612 66 Brno, Czech Republic