From nobody Sat Oct 23 15:03:35 2021 X-Original-To: freebsd-stable@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 15579181FCF5 for ; Sat, 23 Oct 2021 15:03:40 +0000 (UTC) (envelope-from cejkar@fit.vutbr.cz) Received: from kazi.fit.vutbr.cz (kazi.fit.vutbr.cz [IPv6:2001:67c:1220:808::93e5:80c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "kazi.fit.vutbr.cz", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Hc4Gz0B1sz3G2w for ; Sat, 23 Oct 2021 15:03:38 +0000 (UTC) (envelope-from cejkar@fit.vutbr.cz) Received: from kazi.fit.vutbr.cz (localhost [127.0.0.1]) by kazi.fit.vutbr.cz (8.16.1/8.16.1) with ESMTPS id 19NF3Zlv060470 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Sat, 23 Oct 2021 17:03:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fit.vutbr.cz; s=mx1; t=1635001416; bh=8o5/HSVnsq9Z1pGw5l+2hY1f+2bIcigRDbpfZ+mGZ0E=; h=Date:From:To:Subject; b=cgRsYEd73rEZIHgPEOBsilRtFHSq/pII8RPMyI0yne/RDYWNskCQ7pdEkCn1fM3CU IsrLPxbIis5en0pnjHmKWrjznpYbPtCNkPx3EiZTjuZ2k7Nmfj6tLmSyvsAvyaZzgu wApIFMWR44zCVKw1lrgLxTZemAvWHdLO/WwvaPyY= Received: (from cejkar@localhost) by kazi.fit.vutbr.cz (8.16.1/8.16.1/Submit) id 19NF3ZQr060469 for freebsd-stable@freebsd.org; Sat, 23 Oct 2021 17:03:35 +0200 (CEST) X-Authentication-Warning: kazi.fit.vutbr.cz: cejkar set sender to cejkar@fit.vutbr.cz using -f Date: Sat, 23 Oct 2021 17:03:35 +0200 From: Cejka Rudolf To: freebsd-stable@freebsd.org Subject: Unable to grab keyboard with VT on a headless node in stable/12 Message-ID: List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Queue-Id: 4Hc4Gz0B1sz3G2w X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=fit.vutbr.cz header.s=mx1 header.b=cgRsYEd7; dmarc=none; spf=none (mx1.freebsd.org: domain of cejkar@fit.vutbr.cz has no SPF policy when checking 2001:67c:1220:808::93e5:80c) smtp.mailfrom=cejkar@fit.vutbr.cz X-Spamd-Result: default: False [-1.30 / 15.00]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[fit.vutbr.cz:s=mx1]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-stable@freebsd.org]; HAS_XAW(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; TO_DN_NONE(0.00)[]; NEURAL_SPAM_SHORT(1.00)[1.000]; DKIM_TRACE(0.00)[fit.vutbr.cz:+]; DMARC_NA(0.00)[vutbr.cz]; R_SPF_NA(0.00)[no SPF record]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:197451, ipnet:2001:67c:1220::/46, country:CZ]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-ThisMailContainsUnwantedMimeParts: N 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 http://www.fit.vut.cz/~cejkar Brno University of Technology, Faculty of Information Technology Bozetechova 2, 612 66 Brno, Czech Republic