Date: Thu, 19 Dec 2013 16:46:15 +0100 From: Matthias Petermann <matthias@petermann-it.de> To: =?utf-8?b?0JPRg9C70Y/QtdCyIA==?= =?utf-8?b?0JPQvtGI0LA=?= <gosha-necr@yandex.ru> Cc: freebsd-acpi@freebsd.org, freebsd-mobile@freebsd.org Subject: Re: Reduced screen light after power disappearing. Message-ID: <20131219164615.Horde.UYp_45CJTw6WSZ_EsSijVw1@d2ux.org> In-Reply-To: <81841387466313@web9g.yandex.ru> References: <81841387466313@web9g.yandex.ru>
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Hello, Zitat von Гуляев Гоша <gosha-necr@yandex.ru>: > Good day! > > I have a laptop with FreeBSD 10-BETA4 AMD64. When the power is lost > it automatically reduces screen brightness. But when the power comes > back, the brightness does not return to a normal level. Fn + > BrightUP key do not help. I have no other auto power saving set up > except powerd_enable="yes" in /etc/rc.conf > > The only way to return brightness to a normal level now is to > reboot. How I can fix that? You could try to kldload acpi_video. # kldload acpi_video # sysctl -a | grep brightness should show up a key which you can use to set the brightness. # sysctl hw.acpi.video.lcd0.brightness=100 For some vendors (e.g. Lenovo) there are custom modules with their own brightness setting keys: # kldload acpi_ibm # sysctl -a | grep brightness If none of this are working, you might want to try out ports/sysutils/acpi_call and directly calling an ACPI method to increase or set the brightness. This was btw the only way it is working for my Lenovo X121e and E330. Kind regards, Matthias -- Matthias Petermann <matthias@petermann-it.de> | www.petermann-it.de GnuPG: 0x5C3E6D75 | 5930 86EF 7965 2BBA 6572 C3D7 7B1D A3C3 5C3E 6D75
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