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[37.11.38.175]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-36b368638fbsm18233172f8f.103.2024.07.31.20.53.01 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 31 Jul 2024 20:53:02 -0700 (PDT) Date: Thu, 01 Aug 2024 05:52:57 +0200 From: Ramiro Aceves To: freebsd-questions@freebsd.org Subject: Re: acpi_ibm Thinkpad x260 does not work for screen brightness User-Agent: K-9 Mail for Android In-Reply-To: <7eadcdb2-cd80-4344-8bcd-a474c7496696@gmail.com> References: <7eadcdb2-cd80-4344-8bcd-a474c7496696@gmail.com> Message-ID: <66649D30-7BAB-40C5-A20D-367F7064093C@gmail.com> List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-questions@freebsd.org Sender: owner-freebsd-questions@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spamd-Bar: --- X-Spamd-Result: default: False [-4.00 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.999]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; FREEMAIL_FROM(0.00)[gmail.com]; FROM_HAS_DN(0.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; TO_DN_NONE(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[freebsd-questions@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::42f:from] X-Rspamd-Queue-Id: 4WZFRl1N6fz4CN3 Hi, I share the answer I have received on Reddit: "Setting brightness through acpi\_ibm sysctl no longer works for me on Fre= eBSD 14 as well, but there's now a system program named \`backlight\` (not = to be confused with \`xbacklight\`)=2E It took me some time to find it sinc= e my backlight setup stopped working after updating 13 -> 14=2E Try using i= t to set brightness instead=2E" It works fine this way=2E I think that it should be documented in acpi_ibm= man page=2E Regards=2E Ramiro