Hello,
Would anyone know a way to adjust the brightness on a macbook pro mid-2010? I really need to do this because the display is quite dark.
I have tried xbacklight, backlight, sysctl ... to no avail.
A few pieces of information on that machine:
dmesg
pciconf
kldstat
/boot/loader.conf
/etc/rc.conf
/etc/sysctl.conf
xbacklight
backlight
sysctl dev
sysctl hw
This very last sysctl command returns this message on the brightness changing from 50 to 100 but it actually does not change anything in the display as it continues being dark.
I can provide more information if needed.
Thanks.
Would anyone know a way to adjust the brightness on a macbook pro mid-2010? I really need to do this because the display is quite dark.
I have tried xbacklight, backlight, sysctl ... to no avail.
A few pieces of information on that machine:
dmesg
Code:
root@here:~ # dmesg
( ... )
FreeBSD 14.2-RELEASE-p1 GENERIC amd64
FreeBSD clang version 18.1.6 ([URL]https://github.com/llvm/llvm-project.git[/URL] llvmorg-18.1.6-0-g1118c2e05e67)
VT(efifb): resolution 1440x900
module_register: cannot register tmpfs from kernel; already loaded from tmpfs.ko
Module tmpfs failed to register: 17
CPU: Intel(R) Core(TM) i5 CPU M 540 @ 2.53GHz (2527.31-MHz K8-class CPU)
Origin="GenuineIntel" Id=0x20652 Family=0x6 Model=0x25 Stepping=2
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0x298e3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,POPCNT,AESNI>
AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
AMD Features2=0x1<LAHF>
Structured Extended Features3=0xc000000<IBPB,STIBP>
VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID
TSC: P-state invariant, performance statistics
real memory = 8589934592 (8192 MB)
avail memory = 8191389696 (7811 MB)
Event timer "LAPIC" quality 600
ACPI APIC Table: <APPLE Apple00>
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 hardware threads
( ... )
vgapci0: <VGA-compatible display> port 0x2000-0x207f mem 0xd2000000-0xd2ffffff,0xc0000000-0xcfffffff,0xd0000000-0xd1ffffff at device 0.0 on pci1
hdac0: <NVIDIA (0x0be2) HDA Controller> mem 0xd3080000-0xd3083fff at device 0.1 on pci1
vgapci1: <VGA-compatible display> port 0x3130-0x3137 mem 0xd3400000-0xd37fffff,0xb0000000-0xbfffffff at device 2.0 on pci0
agp0: <Intel Ironlake (M) SVGA controller> on vgapci1
WARNING: Device "agp" is Giant locked and may be deleted before FreeBSD 15.0.
agp0: aperture size is 256M, detected 32764k stolen memory
vgapci1: Boot video device
( ... )
asmc0: <Apple SMC MacBook Pro (Mid 2010, 15-inch)> port 0x300-0x31f irq 6 on acpi0
( ... )
nvidia0: <GeForce GT 330M> on vgapci0
vgapci0: child nvidia0 requested pci_enable_io
vgapci0: child nvidia0 requested pci_enable_io
Cuse v0.1.37 @ /dev/cuse
acpi_video1: <ACPI video extension> on vgapci1
( ... )
Code:
root@here:~ # pciconf -lv | grep -B4 VGA
vgapci1@pci0:0:2:0: class=0x030000 rev=0x12 hdr=0x00 vendor=0x8086 device=0x0046 subvendor=0x0000 subdevice=0x0000
vendor = 'Intel Corporation'
device = 'Core Processor Integrated Graphics Controller'
class = display
subclass = VGA
--
vgapci0@pci0:1:0:0: class=0x030000 rev=0xa2 hdr=0x00 vendor=0x10de device=0x0a29 subvendor=0x106b subdevice=0x00c7
vendor = 'NVIDIA Corporation'
device = 'GT216M [GeForce GT 330M]'
class = display
subclass = VGA
Code:
root@here:~ # kldstat
Id Refs Address Size Name
1 134 0xffffffff80200000 1f3c6c0 kernel
2 1 0xffffffff8213d000 89d8 wsp.ko
4 1 0xffffffff8215c000 97f8 nullfs.ko
5 1 0xffffffff82166000 2edb8 asmc.ko
6 1 0xffffffff82195000 2e7b8 bwn_v4_lp_ucode.ko
7 1 0xffffffff821c4000 e160 bwn_v4_n_ucode.ko
8 1 0xffffffff821d3000 2ce90 bwn_v4_ucode.ko
9 1 0xffffffff83200000 963c38 nvidia.ko
10 1 0xffffffff83118000 30a80 linux.ko
11 5 0xffffffff83149000 c2a8 linux_common.ko
12 1 0xffffffff83156000 6760 cuse.ko
13 1 0xffffffff8315d000 4388 acpi_video.ko
14 1 0xffffffff83162000 4250 ichsmb.ko
15 1 0xffffffff83167000 2178 smbus.ko
16 1 0xffffffff8316a000 63158 if_bwn.ko
17 14 0xffffffff83b64000 38060 bhnd.ko
18 2 0xffffffff831ce000 6740 gpiobus.ko
19 4 0xffffffff831d5000 b240 bhndb.ko
20 1 0xffffffff831e1000 5540 bhndb_pci.ko
21 1 0xffffffff831e7000 2300 bhnd_pci_hostb.ko
22 2 0xffffffff831ea000 3244 bhnd_pci.ko
23 1 0xffffffff831ee000 21b0 bcma_bhndb.ko
24 1 0xffffffff831f1000 50c8 bcma.ko
25 1 0xffffffff831f7000 2364 siba_bhndb.ko
26 1 0xffffffff83b9d000 60c8 siba.ko
27 1 0xffffffff83ba4000 2de10 linux64.ko
28 1 0xffffffff831fa000 2278 pty.ko
29 1 0xffffffff83bd2000 3560 fdescfs.ko
30 1 0xffffffff83bd6000 73c0 linprocfs.ko
31 1 0xffffffff83bde000 440c linsysfs.ko
32 1 0xffffffff83be3000 b0b0 tmpfs.ko
33 1 0xffffffff83bef000 3360 uhid.ko
34 1 0xffffffff83bf3000 3360 wmt.ko
35 1 0xffffffff83bf7000 4364 ums.ko
36 1 0xffffffff83bfc000 4d20 ng_ubt.ko
37 6 0xffffffff83c01000 abb8 netgraph.ko
38 2 0xffffffff83c0c000 a250 ng_hci.ko
39 4 0xffffffff831fd000 2670 ng_bluetooth.ko
40 1 0xffffffff83c17000 48e0 atp.ko
41 1 0xffffffff83c1c000 e268 ng_l2cap.ko
42 1 0xffffffff83c2b000 1bf68 ng_btsocket.ko
43 1 0xffffffff83c47000 38f8 ng_socket.ko
Code:
root@here:~# cat /boot/loader.conf
security.bsd.allow_destructive_dtrace=0
wsp_load="YES"
asmc_load="YES"
hw.bwn_pci.preferred="0"
bwn_v4_ucode_load="YES"
bwn_v4_n_ucode_load="YES"
bwn_v4_lp_ucode_load="YES"
wlan_wep_load="YES"
wlan_ccmp_load="YES"
wlan_tkip_load="YES"
Code:
root@here:~ # cat /etc/rc.conf
clear_tmp_enable="YES"
syslogd_flags="-ss"
hostname="here"
ifconfig_bge0="DHCP"
sshd_enable="YES"
powerd_enable="YES"
moused_nondefault_enable="NO"
# Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
dumpdev="AUTO"
kld_list="i915kms nvidia nvidia-modeset cuse acpi_video"
dbus_enable="YES"
lightdm_enable="YES"
webcamd_enable="YES"
moused_port="/dev/wsp0"
moused_enable="YES"
lpd_enable="YES"
cupsd_enable="YES"
avahi_daemon_enable="YES"
wlans_bwn0="wlan0"
ifconfig_wlan0="WPA DHCP"
Code:
root@here:~ # cat /etc/sysctl.conf
#
# This file is read when going to multi-user and its contents piped thru
# ``sysctl'' to adjust kernel values. ``man 5 sysctl.conf'' for details.
#
# Uncomment this to prevent users from seeing information about processes that
# are being run under another UID.
#security.bsd.see_other_uids=0
security.bsd.see_other_uids=0
security.bsd.see_other_gids=0
security.bsd.see_jail_proc=0
security.bsd.unprivileged_read_msgbuf=0
security.bsd.unprivileged_proc_debug=0
kern.randompid=1
Code:
root@here:~ # xbacklight
RANDR Query Version returned error -1
Code:
root@here:~ # backlight
backlight: cannot open /dev/backlight/backlight0: No such file or directory
Code:
root@here:~ # sysctl dev | grep video
dev.acpi_video.1.%iommu:
dev.acpi_video.1.%parent: vgapci1
dev.acpi_video.1.%pnpinfo:
dev.acpi_video.1.%location:
dev.acpi_video.1.%driver: acpi_video
dev.acpi_video.1.%desc: ACPI video extension
dev.acpi_video.%parent:
Code:
root@here:~ # sysctl hw | grep video
hw.acpi.video.lcd0.levels: 80 50 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
hw.acpi.video.lcd0.economy: 50
hw.acpi.video.lcd0.fullpower: 80
hw.acpi.video.lcd0.brightness: 50
hw.acpi.video.lcd0.active: 0
hw.acpi.reset_video: 0
root@here:~ # sysctl hw.acpi.video.lcd0.brightness=100
hw.acpi.video.lcd0.brightness: 50 -> 100I can provide more information if needed.
Thanks.
