Ted Unangst <t...@tedunangst.com> wrote:
> It's a bug and it's worth reporting as much info about your hardware as
> possible, but don't expect a quick fix. As a workaround, just run
'xbacklight
> 50 ; xbacklight 100' or whatever you want.
>

Hello, I've an ASUS K53SV and the brightness also behaves oddly.

Values for "wsconsctl display.brightness" between 2 and 100 set it to
8/10. 1 sets it to 7/10 and 0 sets it to 0/10. After assignment, it
always prints "100%".

xbacklight works the same way, except that setting it to 100 doesn't
do anything at all, and -get always prints 100 (with a bunch of
decimals).

Using the keyboard keys works, and allows setting the brightness to
max. But the setting is forgotten after DPMS triggers or after
switching to a TTY. Every change with the keys or with xbacklight
takes a little moment to happen, while it is instant with wsconsctl.

I'm not sure if it's relevant, but the audio keys don't work, and
neither they nor the backlight keys show up with xev(1). I built the
kernel with ACPIASUS_DEBUG and WSKBD_DEBUG, but no messages are
printed on these events.

Also, the same problem used to be present on Linux, but got fixed at
some point since I started using OpenBSD more than a year ago, so I
have no idea which version fixed it.

I'd like to try fixing this, but I don't know which drivers/files are
responsible for these things in my case. Can you give me a hint?

Matej

$ dmesg
OpenBSD 5.9-current (compile) #0: Tue Apr  5 20:06:57 CEST 2016
    matej@puffy:/home/matej/openbsd/compile
real mem = 8479825920 (8086MB)
avail mem = 8218599424 (7837MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xebc30 (100 entries)
bios0: vendor American Megatrends Inc. version "K53SV.315" date 09/26/2011
bios0: ASUSTeK Computer Inc. K53SV
acpi0 at bios0: rev 2
acpi0: sleep states S0 S1 S3 S4 S5
acpi0: tables DSDT FACP APIC HPET ECDT MCFG SSDT SSDT SSDT
acpi0: wakeup devices P0P1(S4) EHC1(S3) USB1(S3) USB2(S3) USB3(S3)
USB4(S3) EHC2(S3) USB5(S3) USB6(S3) USB7(S3) PXSX(S4) PXSX(S4)
PXSX(S4) PXSX(S4) PXSX(S4) PXSX(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, 2195.34 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,X
SAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, 2195.01 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,X
SAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, 2195.01 MHz
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,X
SAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, 2195.01 MHz
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,X
SAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 0, core 3, package 0
cpu4 at mainbus0: apid 1 (application processor)
cpu4: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, 2195.01 MHz
cpu4:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,X
SAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu4: 256KB 64b/line 8-way L2 cache
cpu4: smt 1, core 0, package 0
cpu5 at mainbus0: apid 3 (application processor)
cpu5: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, 2195.01 MHz
cpu5:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,X
SAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu5: 256KB 64b/line 8-way L2 cache
cpu5: smt 1, core 1, package 0
cpu6 at mainbus0: apid 5 (application processor)
cpu6: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, 2195.01 MHz
cpu6:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,X
SAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu6: 256KB 64b/line 8-way L2 cache
cpu6: smt 1, core 2, package 0
cpu7 at mainbus0: apid 7 (application processor)
cpu7: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, 2195.01 MHz
cpu7:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,X
SAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu7: 256KB 64b/line 8-way L2 cache
cpu7: smt 1, core 3, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
acpihpet0 at acpi0: 14318179 Hz
acpiec0 at acpi0
acpimcfg0 at acpi0 addr 0xe0000000, bus 0-63
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (P0P1)
acpiprt2 at acpi0: bus 2 (RP01)
acpiprt3 at acpi0: bus 3 (RP02)
acpiprt4 at acpi0: bus -1 (RP03)
acpiprt5 at acpi0: bus 4 (RP04)
acpiprt6 at acpi0: bus -1 (RP05)
acpiprt7 at acpi0: bus 5 (RP06)
acpiprt8 at acpi0: bus -1 (RP07)
acpiprt9 at acpi0: bus -1 (RP08)
acpiprt10 at acpi0: bus -1 (PEG1)
acpiprt11 at acpi0: bus -1 (PEG2)
acpiprt12 at acpi0: bus -1 (PEG3)
acpiprt13 at acpi0: bus 1 (PEGR)
acpicpu0 at acpi0: C3(350@104 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(350@104 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(350@104 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(350@104 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu4 at acpi0: C3(350@104 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu5 at acpi0: C3(350@104 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu6 at acpi0: C3(350@104 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpicpu7 at acpi0: C3(350@104 mwait.1@0x20), C1(1000@1 mwait.1), PSS
acpitz0 at acpi0: critical temperature is 103 degC
"PNP0103" at acpi0 not configured
"INT3F0D" at acpi0 not configured
"PNP0C09" at acpi0 not configured
"PNP0303" at acpi0 not configured
"SYN0A17" at acpi0 not configured
acpibat0 at acpi0: BAT0 model "[MKF_BASEBOARD_ID]" serial   type LION
oem "[MKF_CUSTOMER]"
acpiac0 at acpi0: AC unit online
"pnp0c14" at acpi0 not configured
"pnp0c14" at acpi0 not configured
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
"INT340E" at acpi0 not configured
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: LCDD
acpivideo1 at acpi0: GFX0
acpivout at acpivideo1 not configured
cpu0: Enhanced SpeedStep 2195 MHz: speeds: 2201, 2200, 2000, 1900,
1800, 1700, 1600, 1500, 1400, 1300, 1200, 1100, 1000, 900, 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09
ppb0 at pci0 dev 1 function 0 "Intel Core 2G PCIE" rev 0x09: msi
pci1 at ppb0 bus 1
vendor "NVIDIA", unknown product 0x0df4 (class display subclass VGA,
rev 0xa1) at pci1 dev 0 function 0 not configured
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 3000" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1366x768
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel 6 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
ehci0 at pci0 dev 26 function 0 "Intel 6 Series USB" rev 0x05: apic 2 int 16
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 6 Series HD Audio" rev 0x05: msi
azalia0: codecs: Realtek ALC269, Intel/0x2805, using Realtek ALC269
audio0 at azalia0
ppb1 at pci0 dev 28 function 0 "Intel 6 Series PCIE" rev 0xb5: msi
pci2 at ppb1 bus 2
ppb2 at pci0 dev 28 function 1 "Intel 6 Series PCIE" rev 0xb5: msi
pci3 at ppb2 bus 3
athn0 at pci3 dev 0 function 0 "Atheros AR9285" rev 0x01: apic 2 int 17
athn0: AR9285 rev 2 (1T1R), ROM rev 14, address 74:2f:68:f8:50:7b
ppb3 at pci0 dev 28 function 3 "Intel 6 Series PCIE" rev 0xb5: msi
pci4 at ppb3 bus 4
xhci0 at pci4 dev 0 function 0 "ASMedia ASM1042 xHCI" rev 0x00: msi
usb1 at xhci0: USB revision 3.0
uhub1 at usb1 "ASMedia xHCI root hub" rev 3.00/1.00 addr 1
ppb4 at pci0 dev 28 function 5 "Intel 6 Series PCIE" rev 0xb5: msi
pci5 at ppb4 bus 5
re0 at pci5 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E
(0x2c00), msi, address 54:04:a6:38:bd:12
rgephy0 at re0 phy 7: RTL8169S/8110S/8211 PHY, rev. 4
ehci1 at pci0 dev 29 function 0 "Intel 6 Series USB" rev 0x05: apic 2 int 23
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel HM65 LPC" rev 0x05
ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x05: msi, AHCI 1.3
ahci0: port 0: 3.0Gb/s
ahci0: port 1: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, WDC WD5000BPKT-8, 01.0> SCSI3
0/direct fixed naa.50014ee2b0f75de1
sd0: 476940MB, 512 bytes/sector, 976773168 sectors
cd0 at scsibus1 targ 1 lun 0: <MATSHITA, DVD-RAM UJ8B0, 1.00> ATAPI
5/cdrom removable
ichiic0 at pci0 dev 31 function 3 "Intel 6 Series SMBus" rev 0x05: apic 2 int
18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-10600 SO-DIMM
spdmem1 at iic0 addr 0x52: 4GB DDR3 SDRAM PC3-10600 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pms0: Synaptics touchpad, firmware 7.5
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
uhub3 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
ugen0 at uhub3 port 1 "AsureWave product 0x3304" rev 1.10/0.01 addr 3
uvideo0 at uhub3 port 2 configuration 1 interface 0
"04G6200086K1AN1AI00041E ASUS USB2.0 WebCam" rev 2.00/0.03 addr 4
video0 at uvideo0
ugen1 at uhub3 port 4 "Generic USB2.0-CRW" rev 2.00/39.60 addr 5
uhub4 at uhub2 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (cb96c153f9423727.a) swap on sd0b dump on sd0b

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