Re: kern/43017 (LCD brightness (backlight) settings do not work on HP Mini 5102 netbook)

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR kern/43017; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/43017 (LCD brightness (backlight) settings do not work on
 HP Mini 5102 netbook)
Date: Tue, 19 Jul 2011 02:54:51 +0000

 For some reason this didn't get to gnats, even though it was sent
 there.
 
    ------
 
 From: Jarom?r C?p?k <tavvva%seznam.cz@localhost>
 To: gnats-bugs%NetBSD.org@localhost
 Cc: jruoho%NetBSD.org@localhost, netbsd-bugs%netbsd.org@localhost, 
gnats-admin%netbsd.org@localhost
 Subject: Re: kern/43017 (LCD brightness (backlight) settings do not work on HP
        Mini 5102 netbook)
 Date: Thu, 23 Jun 2011 10:14:41 +0200 (CEST)
 
 Hello Jukka.
 
 The backlight settings are apparently present on the acpiout1 in my case.
 
 acpiout1: brightness levels: 0 5 10 15 20 25 30 33 36 40 43 46 50 55 60 65 70 
75 80 83 86 90 93 96 100
 
 Anyway ... even if I was changing the value (and could read back what was 
actualy written),
 the LCD brightness stayed the same all the time.
 
 I'm attaching the dmesg output.
 
 Have a nice day.
 
 Regards,
 Jaromir.
 
 
 > ------------ P?vodn? zpr?va ------------
 > Od:  <jruoho%NetBSD.org@localhost>
 > P?edm?t: Re: kern/43017 (LCD brightness (backlight) settings do not work on 
 > HP
 > Mini 5102 netbook)
 > Datum: 20.6.2011 19:03:32
 > ----------------------------------------
 > Synopsis: LCD brightness (backlight) settings do not work on HP Mini 5102
 > netbook
 >
 > State-Changed-From-To: open->feedback
 > State-Changed-By: jruoho%NetBSD.org@localhost
 > State-Changed-When: Mon, 20 Jun 2011 16:55:04 +0000
 > State-Changed-Why:
 >
 > Can you try a kernel from HEAD? We have added few drivers that may help,
 > namely, acpivga(4) and wmihp(4).  (The latter may handle the hotkeys, but it
 > is not enabled in GENERICs.) With the former -- if it attachs and works --
 > you should be able to control the brightness with the
 >
 >         hw.acpi.acpiout0.brightness
 >
 > sysctl(8) variable.
 >
 >
 >
 >
 >
 >
 > 
 
 Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
     2006, 2007, 2008, 2009, 2010, 2011
     The NetBSD Foundation, Inc.  All rights reserved.
 Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.
 
 NetBSD 5.99.53 (GENERIC) #0: Wed Jun 22 11:56:52 UTC 2011
        
builds%b7.netbsd.org@localhost:/home/builds/ab/HEAD/amd64/201106221010Z-obj/home/builds/ab/HEAD/src/sys/arch/amd64/compile/GENERIC
 total memory = 2033 MB
 avail memory = 1959 MB
 timecounter: Timecounters tick every 10.000 msec
 RTC BIOS diagnostic error 
0xb7<clock_battery,config_unit,memory_size,invalid_time>
 timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
 Hewlett-Packard HP Mini 5102 ( )
 mainbus0 (root)
 cpu0 at mainbus0 apid 0: Intel(R) Atom(TM) CPU N450   @ 1.66GHz, id 0x106ca
 cpu1 at mainbus0 apid 1: Intel(R) Atom(TM) CPU N450   @ 1.66GHz, id 0x106ca
 ioapic0 at mainbus0 apid 1: pa 0xfec00000, version 20, 24 pins
 acpi0 at mainbus0: Intel ACPICA 20110211
 acpi0: X/RSDT: OemId <HPQOEM,SLIC-MPC,0000000f>, AslId <    ,01000013>
 ACPI Warning: For \_SB_.PCI0.PCIB._PRT: Return Package has no elements (empty) 
(20110211/nspredef-500)
 acpi0: SCI interrupting at int 9
 timecounter: Timecounter "ACPI-Safe" frequency 3579545 Hz quality 900
 hpet0 at acpi0: high precision event timer (mem 0xfed00000-0xfed00400)
 timecounter: Timecounter "hpet0" frequency 14318179 Hz quality 2000
 acpiec0 at acpi0 (EC0, PNP0C09-1): io 0x62,0x66
 PDRC (PNP0C02) at acpi0 not configured
 acpivga0 at acpi0 (GFX0): ACPI Display Adapter
 acpiout0 at acpivga0 (DD01, 0x0100): ACPI Display Output Device
 acpiout1 at acpivga0 (DD02, 0x0400): ACPI Display Output Device
 acpiout1: brightness levels: 0 5 10 15 20 25 30 33 36 40 43 46 50 55 60 65 70 
75 80 83 86 90 93 96 100
 acpiout2 at acpivga0 (DD03, 0x0300): ACPI Display Output Device
 acpiout3 at acpivga0 (DD04, 0x0301): ACPI Display Output Device
 acpiout4 at acpivga0 (DD05, 0x0302): ACPI Display Output Device
 acpiout5 at acpivga0 (DD06, 0x0006): ACPI Display Output Device
 acpiout6 at acpivga0 (DD07, 0x0007): ACPI Display Output Device
 acpiout7 at acpivga0 (DD08, 0x0008): ACPI Display Output Device
 acpivga0: unknown output device acpiout0
 acpivga0: unknown output device acpiout2
 acpivga0: unknown output device acpiout3
 acpivga0: unknown output device acpiout4
 acpivga0: unknown output device acpiout5
 acpivga0: unknown output device acpiout6
 acpivga0: unknown output device acpiout7
 acpivga0: connected output devices:
 acpivga0:   0x0400 (acpiout1): Unknown Output Device, head 0
 FWHD (INT0800) at acpi0 not configured
 LDRC (PNP0C02) at acpi0 not configured
 attimer1 at acpi0 (TIMR, PNP0100): io 0x40-0x43,0x50-0x53 irq 0
 pckbc1 at acpi0 (PS2K, PNP0303) (kbd port): io 0x60,0x64 irq 1
 pckbc2 at acpi0 (PS2M, SYN0170) (aux port): irq 12
 ACEL (HPQ0004) at acpi0 not configured
 acpibat0 at acpi0 (BAT0, PNP0C0A-1): ACPI Battery
 acpibat0: Hewlett-Packard LIon rechargeable battery
 acpibat0: model number Primary, serial number 05445 2010/01/20
 acpibat0: granularity: low->warn 0.100 Ah, warn->full 0.100 Ah
 acpiacad0 at acpi0 (AC, ACPI0003): ACPI AC Adapter
 acpibut0 at acpi0 (SLPB, PNP0C0E): ACPI Sleep Button
 acpilid0 at acpi0 (LID, PNP0C0D): ACPI Lid Switch
 acpidalb0 at acpi0 (HST1, PNP0C32-1): Direct Application Launch Button
 acpiwmi0 at acpi0 (WMID, PNP0C14-0): ACPI WMI Interface
 wmihp0 at acpiwmi0: HP WMI mappings
 acpifan0 at acpi0 (FAN0, PNP0C0B-0): ACPI Fan
 acpifan1 at acpi0 (FAN1, PNP0C0B-1): ACPI Fan
 acpifan2 at acpi0 (FAN2, PNP0C0B-2): ACPI Fan
 acpifan3 at acpi0 (FAN3, PNP0C0B-3): ACPI Fan
 acpifan4 at acpi0 (FAN4, PNP0C0B-4): ACPI Fan
 acpitz0 at acpi0 (DTSZ)
 acpitz0: levels: critical 105.0 C, passive cooling
 acpitz1 at acpi0 (CPUZ): cpu0 cpu1
 acpitz1: active cooling level 0: 83.0C
 acpitz1: active cooling level 1: 73.0C
 acpitz1: active cooling level 2: 63.0C
 acpitz1: active cooling level 3: 53.0C
 acpitz1: active cooling level 4: 43.0C
 acpitz1: levels: critical 103.0 C, passive 100.0 C
 acpitz2 at acpi0 (SKNZ): cpu0 cpu1
 acpitz2: levels: critical 78.0 C, passive 78.0 C, passive cooling
 acpitz3 at acpi0 (BATZ): cpu0 cpu1
 acpitz3: levels: critical 103.0 C, passive 60.0 C, passive cooling
 acpitz4 at acpi0 (FDTZ)
 acpitz4: levels: critical 110.0 C, passive cooling
 pckbd0 at pckbc1 (kbd slot)
 pckbc1: using irq 1 for kbd slot
 wskbd0 at pckbd0: console keyboard
 pms0 at pckbc1 (aux slot)
 pms0: Synaptics touchpad version 7.2
 pms0: Palm detect
 pckbc1: using irq 12 for aux slot
 wsmouse0 at pms0 mux 0
 pci0 at mainbus0 bus 0: configuration mode 1
 pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
 pchb0 at pci0 dev 0 function 0: vendor 0x8086 product 0xa010 (rev. 0x00)
 agp0 at pchb0: detected 7932k stolen memory
 agp0: aperture at 0x80000000, size 0x10000000
 vga0 at pci0 dev 2 function 0: vendor 0x8086 product 0xa011 (rev. 0x00)
 wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation), using wskbd0
 wsmux1: connecting to wsdisplay0
 drm at vga0 not configured
 vendor 0x8086 product 0xa012 (miscellaneous display) at pci0 dev 2 function 1 
not configured
 hdaudio0 at pci0 dev 27 function 0: HD Audio Controller
 hdaudio0: interrupting at ioapic0 pin 19
 hdafg0 at hdaudio0: Sigmatel 92HD75B2X5
 hdafg0: DAC00 2ch: Speaker [Built-In], HP Out [Jack]
 hdafg0: ADC01 2ch: Mic In [Jack] [Built-In]
 hdafg0: 2ch/2ch 44100Hz 48000Hz 88200Hz 96000Hz 192000Hz 16/16 20/32 24/32
 audio0 at hdafg0: full duplex, playback, capture, independent
 ppb0 at pci0 dev 28 function 0: vendor 0x8086 product 0x27d0 (rev. 0x02)
 ppb0: PCI Express 1.0 <Root Port of PCI-E Root Complex>
 pci1 at ppb0 bus 1
 pci1: i/o space, memory space enabled, rd/line, wr/inv ok
 vendor 0x14e4 product 0x4315 (miscellaneous network, revision 0x01) at pci1 
dev 0 function 0 not configured
 ppb1 at pci0 dev 28 function 2: vendor 0x8086 product 0x27d4 (rev. 0x02)
 ppb1: PCI Express 1.0 <Root Port of PCI-E Root Complex>
 pci2 at ppb1 bus 2
 pci2: i/o space, memory space enabled, rd/line, wr/inv ok
 ppb2 at pci0 dev 28 function 3: vendor 0x8086 product 0x27d6 (rev. 0x02)
 ppb2: PCI Express 1.0 <Root Port of PCI-E Root Complex>
 pci3 at ppb2 bus 67
 pci3: i/o space, memory space enabled, rd/line, wr/inv ok
 vendor 0x11ab product 0x4381 (ethernet network, revision 0x11) at pci3 dev 0 
function 0 not configured
 uhci0 at pci0 dev 29 function 0: vendor 0x8086 product 0x27c8 (rev. 0x02)
 uhci0: interrupting at ioapic0 pin 20
 usb0 at uhci0: USB revision 1.0
 uhci1 at pci0 dev 29 function 1: vendor 0x8086 product 0x27c9 (rev. 0x02)
 uhci1: interrupting at ioapic0 pin 22
 usb1 at uhci1: USB revision 1.0
 uhci2 at pci0 dev 29 function 2: vendor 0x8086 product 0x27ca (rev. 0x02)
 uhci2: interrupting at ioapic0 pin 18
 usb2 at uhci2: USB revision 1.0
 uhci3 at pci0 dev 29 function 3: vendor 0x8086 product 0x27cb (rev. 0x02)
 uhci3: interrupting at ioapic0 pin 19
 usb3 at uhci3: USB revision 1.0
 ehci0 at pci0 dev 29 function 7: vendor 0x8086 product 0x27cc (rev. 0x02)
 ehci0: interrupting at ioapic0 pin 20
 ehci0: EHCI version 1.0
 ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 uhci3
 usb4 at ehci0: USB revision 2.0
 ppb3 at pci0 dev 30 function 0: vendor 0x8086 product 0x2448 (rev. 0xe2)
 pci4 at ppb3 bus 68
 pci4: i/o space, memory space enabled
 pcib0 at pci0 dev 31 function 0: vendor 0x8086 product 0x27bc (rev. 0x02)
 ahcisata0 at pci0 dev 31 function 2: vendor 0x8086 product 0x27c1
 ahcisata0: interrupting at ioapic0 pin 22
 ahcisata0: 64-bit DMA
 ahcisata0: AHCI revision 1.1, 4 ports, 32 command slots, features 0xcf20e000
 atabus0 at ahcisata0 channel 0
 atabus1 at ahcisata0 channel 1
 isa0 at pcib0
 pcppi0 at isa0 port 0x61
 midi0 at pcppi0: PC speaker
 sysbeep0 at pcppi0
 attimer1: attached to pcppi0
 acpicpu0 at cpu0: ACPI CPU
 acpicpu0: C1: FFH, lat   1 us, pow  1000 mW
 acpicpu0: C2: FFH, lat  20 us, pow   500 mW
 acpicpu0: P0: FFH, lat  10 us, pow  2000 mW, 1666 MHz
 acpicpu0: P1: FFH, lat  10 us, pow  1300 mW, 1333 MHz
 acpicpu0: P2: FFH, lat  10 us, pow   600 mW, 1000 MHz
 acpicpu0: T0: HLT, lat   1 us, pow     0 mW, 100 %
 acpicpu0: T1: HLT, lat   1 us, pow     0 mW,  88 %
 acpicpu0: T2: HLT, lat   1 us, pow     0 mW,  76 %
 acpicpu0: T3: HLT, lat   1 us, pow     0 mW,  64 %
 acpicpu0: T4: HLT, lat   1 us, pow     0 mW,  52 %
 acpicpu0: T5: HLT, lat   1 us, pow     0 mW,  40 %
 acpicpu0: T6: HLT, lat   1 us, pow     0 mW,  28 %
 acpicpu0: T7: HLT, lat   1 us, pow     0 mW,  16 %
 coretemp0 at cpu0: thermal sensor, 1 C resolution
 acpicpu1 at cpu1: ACPI CPU
 timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
 acpiacad0: AC adapter online.
 uhub0 at usb0: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub0: 2 ports with 2 removable, self powered
 uhub1 at usb1: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub1: 2 ports with 2 removable, self powered
 uhub2 at usb2: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub2: 2 ports with 2 removable, self powered
 uhub3 at usb3: vendor 0x8086 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub3: 2 ports with 2 removable, self powered
 uhub4 at usb4: vendor 0x8086 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
 uhub4: 8 ports with 8 removable, self powered
 ahcisata0 port 0: device present, speed: 3.0Gb/s
 ahcisata0 port 1: PHY offline
 wd0 at atabus0 drive 0
 wd0: <WDC WD3200BEKT-60V5T1>
 wd0: drive supports 16-sector PIO transfers, LBA48 addressing
 wd0: 298 GB, 620181 cyl, 16 head, 63 sec, 512 bytes/sect x 625142448 sectors
 wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
 wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) 
(using DMA)
 uvideo0 at uhub4 port 4 configuration 1 interface 0: Chicony Electronics Co., 
Ltd. CNF8243, rev 2.00/85.39, addr 2
 video0 at uvideo0: Chicony Electronics Co., Ltd. CNF8243, rev 2.00/85.39, addr 
2
 Kernelized RAIDframe activated
 pad0: outputs: 44100Hz, 16-bit, stereo
 audio1 at pad0: half duplex, playback, capture
 boot device: wd0
 root on wd0a dumps on wd0b
 root file system type: ffs
 ubt0 at uhub0 port 2
 ubt0: Broadcom Corp HP Integrated Module, rev 2.00/3.06, addr 2
 wsdisplay0: screen 1 added (80x25, vt100 emulation)
 wsdisplay0: screen 2 added (80x25, vt100 emulation)
 wsdisplay0: screen 3 added (80x25, vt100 emulation)
 wsdisplay0: screen 4 added (80x25, vt100 emulation)