# Hardware **URL:** https://linux-tips.com/c/hardware/7.md [Latest](https://linux-tips.com/latest.md) · [Categories](https://linux-tips.com/categories.md) --- ## [About the Hardware category](https://linux-tips.com/t/about-the-hardware-category/13)
**Author:** [@demirten](https://linux-tips.com/u/demirten)\ **Replies:** 0
Hardware installation, configuration and tunings --- ## [How to fix Apple iMac headphone sound problem](https://linux-tips.com/t/how-to-fix-apple-imac-headphone-sound-problem/285)
**Author:** [@demirten](https://linux-tips.com/u/demirten)\ **Replies:** 5\ **Last updated:** [December 20, 2025, 6:31pm UTC](https://linux-tips.com/t/how-to-fix-apple-imac-headphone-sound-problem/285 "2025-12-20T18:31:46Z")
Apple iMac 12,1 and 13,1 models (21.5 or 27 inch) well supported by Linux but there is an annoying problem with sound card. Builtin speakers works out of the box but when you plugged headphones, you can't hear any soun… --- ## [Apple magic keyboard mapping problem under Linux](https://linux-tips.com/t/apple-magic-keyboard-mapping-problem-under-linux/767)
**Author:** [@demirten](https://linux-tips.com/u/demirten)\ **Replies:** 0\ **Last updated:** [August 19, 2019, 12:11pm UTC](https://linux-tips.com/t/apple-magic-keyboard-mapping-problem-under-linux/767 "2019-08-19T12:11:29Z")
If you have a brand new Apple Magic Keyboard and you’re getting wrong key mappings for \< as " and \> as é, you can fix this problem with the following command: $ setxkbmap -option apple:badmap If it is works for your en… --- ## [How to set generic udev rules for devices with different serials?](https://linux-tips.com/t/how-to-set-generic-udev-rules-for-devices-with-different-serials/555)
**Author:** [@mtekeli](https://linux-tips.com/u/mtekeli)\ **Replies:** 1\ **Last updated:** [August 21, 2017, 5:01pm UTC](https://linux-tips.com/t/how-to-set-generic-udev-rules-for-devices-with-different-serials/555 "2017-08-21T17:01:34Z")
I was using this rule sentence to set links for my devices: echo -e "SUBSYSTEM==\\"tty\\",ATTRS{idVendor}==\\"12d1\\",ATTRS{idProduct}==\\"1003\\",SYMLINK+=\\"ttyUSB.TRKCLVINN\\" SUBSYSTEM==\\"tty\\",ATTRS{idVendor}==\\"1bc7\\",ATT… --- ## [Why MacBook Air fans too much keep running in Linux?](https://linux-tips.com/t/why-macbook-air-fans-too-much-keep-running-in-linux/386)
**Author:** [@RaskoX](https://linux-tips.com/u/RaskoX)\ **Replies:** 1\ **Last updated:** [August 20, 2016, 9:55am UTC](https://linux-tips.com/t/why-macbook-air-fans-too-much-keep-running-in-linux/386 "2016-08-20T09:55:46Z")
I've a MacBook Air (late 2013) which runs Linux in dual boot mode. When I boot into Linux, everything was fine at first. Soon after, if I visit a flash page in chrome or make a cpu intensive task, fans start working an… --- ## [MacbookPro Broadcom wireless problem](https://linux-tips.com/t/macbookpro-broadcom-wireless-problem/323)
**Author:** [@Greg](https://linux-tips.com/u/Greg)\ **Replies:** 1\ **Last updated:** [February 7, 2016, 1:56pm UTC](https://linux-tips.com/t/macbookpro-broadcom-wireless-problem/323 "2016-02-07T13:56:18Z")
Recently I upgraded my Debian Jessie MacbookPro kernel to version 4.3 through jessie-backports. After restart of the system, wireless card no longer work. It gives following error: b43-phy0: Broadcom 4360 WLAN found… --- ## [Fixing wireless connection drop problems on Broadcom BCM43XX](https://linux-tips.com/t/fixing-wireless-connection-drop-problems-on-broadcom-bcm43xx/74)
**Author:** [@demirten](https://linux-tips.com/u/demirten)\ **Replies:** 0\ **Last updated:** [February 1, 2015, 3:53pm UTC](https://linux-tips.com/t/fixing-wireless-connection-drop-problems-on-broadcom-bcm43xx/74 "2015-02-01T15:53:35Z")
There are a few methods to use Broadcom BCM43XX wifi chipsets in past but now it is suggested to use b43 kernel module. Most of the time, b43 kernel module working properly. But in some systems (especially with BCM4331…