HP ProBook 4530s

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Hardware	PCI/USB ID	Working?
GPU (Intel)		Yes
GPU (AMD)		Yes
Bluetooth		Yes
Ethernet		Yes
Wireless		Yes
Audio		Yes
Webcam		Yes
Card reader		Yes
Touchpad		Yes

Fan throttling

The fan can be controlled (throttled) in software, otherwise it never shuts off, even if the BIOS option "Fan always on while on AC power" is disabled. There are two programs supporting the 4530s:

NoteBook FanControl. NBFC have pre-made profile for HP ProBook 4530s.
probook_ec.pl script daemonized in Python and in Ruby

Intel CPU microcode

See Microcode#Installation.

Network

Both the wired and wireless network cards works out-of-the-box. The Atheros card requires the ath9k module, and the Realtek Ethernet card requires the r8169 module. More information can be found at Wireless network configuration#ath9k

Note: With some revisions of this Realtek Ethernet card, better performance may be obtained with the Realtek provided r8168 module, available in the official repositories.

WLAN BIOS whitelist workaround (experimental)

HP BIOS allows only certain WLAN cards (whitelisting) to be used. This can be worked around by adding the following as the first GRUB command in every OS entry:

write_dword 0xFED1F418 0x1F501FEB

You can read more on engineering this hack here. As it is working on 4330s and 4730s it should probably also on 4530s, but consider it experimental.

Bluetooth

Sending/receiving files and switching Bluetooth on/off works. The ath3k module is required.

hciconfig -a

hci0:	Type: BR/EDR  Bus: USB
	BD Address: D0:DF:9A:91:B2:51  ACL MTU: 1022:8  SCO MTU: 121:3
	UP RUNNING PSCAN ISCAN 
	RX bytes:1823103 acl:11471 sco:0 events:10296 errors:0
	TX bytes:334040 acl:9846 sco:0 commands:259 errors:0
	Features: 0xff 0xfe 0x0d 0xfe 0x98 0x7f 0x79 0x87
	Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
	Link policy: RSWITCH HOLD SNIFF 
	Link mode: SLAVE ACCEPT 
	Name: '4530s'
	Class: 0x580100
	Service Classes: Capturing, Object Transfer, Telephony
	Device Class: Computer, Uncategorized
	HCI Version: 3.0 (0x5)  Revision: 0x9999
	LMP Version: 3.0 (0x5)  Subversion: 0x9999
	Manufacturer: Atheros Communications, Inc. (69)

Graphics

Intel HD Graphics 3000 is supported by the open-source xf86-video-intel driver. Dual-head with HDMI works. If using hybrid graphics in conjunction with AMD, AMD Catalyst works well regarding GPU power management. Switching, however, requires a system reboot or Xorg restart. AMD Catalyst should be installed along with xf86-video-intel to support hybrid (Intel) GPU.

Also open-source driver can be used for GPU card. For dynamic switching can be used PRIME technology.

Brightness

Controlling screen brightness with the keystrokes Fn+F2 and Fn+F3 works in Gnome 3, KDE and MATE and has not been tested in other desktop environments.

Touchpad

Touchpad function works with xf86-input-synaptics package. Disabling touchpad using the top-left corner double tap works with xf86-input-synaptics-led^AUR and synaptics-led^AUR packages.

Miscellaneous hardware

Card reader

23:00.0 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 30)
23:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 30)
23:00.3 System peripheral: JMicron Technology Corp. MS Host Controller (rev 30)

SD cards tested and working. With 3.4.7 kernel, Memory Stick card works as intended.

Function keys

Module hp-wmi is likely to be required for the keys to work. In Gnome 3 and MATE every Fn+F* key works. Fn-F6 key requires gnome-power-manager installed. Keys above numeric keypad are also recognized. The Web key has a XF86HomePage symbol (opens home page), Wi-Fi key has NoSymbol and switch fly mode in Gnome 3 (has not been tested in other desktop environments).

Camera

Works with uvcvideo module.

HP DriveGuard

Works with hpfall-git^AUR package.

Power

Module acpi-cpufreq and at least one of CPU governors (cpufreq_ondemand, cpufreq_conservative, etc.) are required. More information on CPU frequency scaling.

Note:

With laptop-mode-tools, tune from powertop2 and i915_enable_rc6 parameter I was able to get about 5:30h of estimated battery life.
Keep in mind that the powertop "good/bad" parameters will not survive a reboot. As of 3.4.x rc6 is enabled by default for Ivy Bridge and Sandy Bridge processors. The default (marked -1) is equivalent of i915_enable_rc6=3 which enables rc6 and rc6p. An additional, lower power state can also be enabled by using i915_enable_rc6=7, though this has been reported to sometimes come at the cost of stability. Also, as of 2011Q4 the i915 module in Sandy Bridge and Ivy Bridge also have framebuffer compression enabled by default.

Suspend and hibernation

Both suspend and hibernation work with pm-utils and kernel backend.

Sensors

lm_sensors shows one acpitz-virtual device with 4 working temperature readings and coretemp-isa device which has one sensor for each CPU core. It does not show any info about fans RPMs.