Date: Wed, 29 Oct 2014 19:33:24 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 194696] New: Asus X551CAP brightness problem (acpi, acpi_video) Message-ID: <bug-194696-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194696 Bug ID: 194696 Summary: Asus X551CAP brightness problem (acpi, acpi_video) Product: Base System Version: 10.0-RELEASE Hardware: amd64 OS: Any Status: Needs Triage Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: theblackdaffodilcult@gmail.com Hello, I can't adjust the display brightness on an ASUS X551CAP laptop running 10-RELEASE (amd64). There's a `hw.acpi.video.lcd0.brigthness' sysctl, which i can modify, but no change actual brightness can be observed: # sysctl hw.acpi.video.lcd0.brigthness=1 hw.acpi.video.lcd0.brightness: 20 -> 1 # sysctl hw.acpi.video.lcd0.brigthness=100 hw.acpi.video.lcd0.brightness: 1 -> 100 Nor can the 'hw.acpi.video.lcd0.active=0' be changed by using # sysctl hw.acpi.video.lcd0.active=1 hw.acpi.video.lcd0.active: 0 -> 0 (acpi_video.ko module was loaded while testing this, I made sure of that) After none of this worked I loaded the acpi_call module. A lot of the commands I threw at that had no effect or returned 'Unknown object type '0' (including these ones:) #acpi_call -p '\_SB-PCI0-GFX0.DD02._BCM' -i 4 #acpi_call -p '\VBRU' '(Brightness Up)' #acpi_call -p \VBRD' #acpi_call -p '\-SB.PCI0.GFX0.DD02._BQC' 0 #acpi_call -p '\-SB.PCI0.GFX0.DD02._BQC' #acpi_call -p '\-SB.PCI0.GFX0.DD02._BCM' #acpi_call -p '\-SB.PCI0.GFX0.DD02._BCL' #acpi_call -p '\-SB.PCI0.GFX0.DD02._BCL' 10 #acpi_call -p '\-SB.PCI0.GFX0.DD02._BCL' 4 i3 window manager on Xorg CPU: Intel(R) Celeron(R) CPU 1007U @ 1.50GHz (1496.64-M) My make.conf file has nothing specified but: PACKAGES=/usr/ports/packages PS: fn+f5 and fn+f6 cannot be used to affect the brightness either and do not change the value for “ hw.acpi.video.lcd0.brigthness” either. I came across more people experiencing the same issue as me while on my quest to find a solution on the Internet. -- You are receiving this mail because: You are the assignee for the bug.
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