From faf937a3a1446c18882939185f3218947b123732 Mon Sep 17 00:00:00 2001 From: Maxim Devaev Date: Mon, 19 Apr 2021 20:44:07 +0300 Subject: [PATCH] Update faq.md --- pages/faq.md | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/pages/faq.md b/pages/faq.md index 89746f54..0b121a86 100644 --- a/pages/faq.md +++ b/pages/faq.md @@ -120,13 +120,14 @@ As a first step we recommend carefully reading our documentation on [GitHub](htt # USB problems (keyboard, mouse, mass storage)
- My computer does not recognize Pi-KVM USB at all + My computer does not recognize USB of Pi-KVM v2+ at all -* Make sure that you have used the correct USB cable with DATA lines to connect the OTG port for the Raspberry to the computer. You may have decided to use a USB hub instead of a Y-cable, and **it won't work**. Use good cables and follow the instructions :) +* - Make sure that you have used the correct USB cable with DATA lines to connect the OTG port for the Raspberry to the computer. You may have decided to use a USB hub instead of a Y-cable, and **it won't work**. Use good cables and follow the instructions :) + - In very rare cases, some motherboards contain a buggy BIOS that does not understand the composite USB device because BIOS doesn't implement the USB stack correctly. In this case, we can suggest the [Arduino HID emulator](arduino_hid.md) from v0 platform with v2.
- BIOS/UEFI does not recognize Pi-KVM USB, but computer does + BIOS/UEFI does not recognize USB of v2+, but computer does * If you are using a USB hub or USB PCI controller, this may not be handled by your BIOS. Try to use another USB port. Some ports may have a built-in hub on the motherboard and a buggy BIOS that can't handle it.
@@ -136,3 +137,15 @@ As a first step we recommend carefully reading our documentation on [GitHub](htt * The BIOS does not support absolute mouse mode, which is preferred by Pi-KVM. In this case, [you can enable relative positioning mode](mouse.md). + +
+ Mass-storage device working (I can boot an image from Pi-KVM v2+), but keyboard/mouse does not + +* In very rare cases, some motherboards contain a buggy BIOS that does not understand the composite USB device because BIOS doesn't implement the USB stack correctly. In this case, we can suggest the [Arduino HID emulator](arduino_hid.md) from v0 platform with v2+. Thus the Pi-KVM will be connected by two USB cables to the motherboard: one of them will be responsible for the keyboard and mouse, the other for everything else. +
+ +
+ I can't get into UEFI/FileVault when booting my Mac using Pi-KVM v2+ + +* The problem is specific to early-model Macs and does not occur on ARM-based Macs (Apple M1 or so). UEFI does not initialize the keyboard of the composite device during boot, however, if you use the standard keyboard to get to the UEFI/FileVault menu, you will see that the keyboard, mouse, and mass storage will work fine. In this case, we can suggest the [Arduino HID emulator](arduino_hid.md) from v0 platform with v2+. Thus the Pi-KVM will be connected by two USB cables to the Mac: one of them will be responsible for the keyboard and mouse, the other for everything else. +