en	[[!meta title="Known issues"]]
it	[[!meta title="Problemi noti"]]

en	To learn what you can do with Tails, refer to our [[documentation|doc]].
it	Per conoscere quello che puoi fare con Tails, consulta la nostra [[documentazione|doc]].

en	For more general questions about Tails, refer to our [[FAQ|support/faq]].
it	- Per domande più generali su Tails, consulta le nostre [[FAQ|support/faq]].

en	For issues with graphics cards, see our [[known issues with graphics cards|known_issues/graphics]].
it	- Per i problemi con le schede grafiche, vedere il nostro [[problemi noti con le schede grafiche|known_issues/graphics]].

en	[[!toc levels=2]]

en	Tails not starting at all
it	Tails non si avvia in nessun modo

en	Mac

en	This section lists known problems with specific hardware.
it	In questa sezione sono elencati i problemi noti con l'hardware specifico.

en	Tails does not start at all on Mac models that use the Apple chips (M1, M2, and so on) and on many other Mac models.
it	Tails non si avvia in nessun modo sui modelli Mac che utilizzano il chip Apple M1 e su molti altri modelli Mac.

en	Apple does not prioritize collaborating with Free Software projects. Their newest hardware is usually very hard for Free Software developers to get working with Linux, and thus Tails. PC hardware tends to be more open and work better with Linux.
it	Apple non dà priorità alla collaborazione con i progetti di software libero. Il loro hardware più recente, solitamente è molto difficile da far funzionare per gli sviluppatori di software libero con Linux e quindi con Tails. L'hardware dei PC tende a essere più aperto e a funzionare meglio con Linux.

en	<div class="tip">

en	See our instructions on [[starting Tails on Mac|doc/first_steps/start/mac]] for general troubleshooting tips.
it	Consulta le nostre istruzioni su [[avvio di Tails su Mac|doc/first_steps/start/mac]] per suggerimenti generali per la risoluzione dei problemi

en	[[Let us know|support/talk]] if you discover a new issue or workaround.
it	[[Facci sapere|support/talk]] se scopri un nuovo problema o una soluzione.

en	</div>

en	PC

en	See our instructions on [[starting Tails on PC|doc/first_steps/start/pc]] for general troubleshooting tips.

en	Dell Latitude E5250

en	Does not start on Tails USB sticks.
it	Non si avvia sulle chiavette USB Tails.

en	Dell Latitude E6430 and E6230

en	Does not start on USB sticks.

en	With BIOS versions A03 06/03/2012 (and A09, A11, and A12)

en	Error message: `Invalid partition table!`

en	Workaround (at least with BIOS versions A09, A11, and A12): just hit enter and it will continue with the boot.

en	HP Notebook BCM943142HM

en	Does not start Tails 4.13.

en	System76 Oryx Pro

en	This machine does not start from a Tails USB stick: the Linux kernel included in at least Tails 3.11 to 3.13.1, inclusive, does not support the hardware USB controller.

en	Tails not starting entirely

en	Mac

en	See our instructions on [[starting Tails on Mac|doc/first_steps/start/mac#not-entirely]] for general troubleshooting tips.

en	MacBook Air Retina 2018 and 2019

en	To start Tails successfully, [[add the following boot option when starting Tails|doc/advanced_topics/boot_options]]:

en	modprobe.blacklist=thunderbolt

en	Still, the trackpad and keyboard might not work. You can use an external mouse and keyboard.

en	PC

en	See our instructions on [[starting Tails on PC|doc/first_steps/start/pc#not-entirely]] for general troubleshooting tips.

en	"Soft lockup" error

en	On some laptops, Tails starts with the following error:

en	soft lockup - CPU#N stuck for Ns

en	To start Tails successfully, try to [[add the following boot option when starting Tails|doc/advanced_topics/boot_options]]:

en	acpi_rev_override=1

en	Microsoft Surface Laptop 3 and 4

en	The keyboard and mouse do not work on this laptop. If you find a workaround, please let us know.

en	Shim SBAT verification error

en	This section applies if you get the following error message, either when starting Tails or when restarting your regular Linux operating system after starting Tails.

en	<p class="code"> Verifying shim SBAT data failed: Security Policy Violation<br> Something has gone seriously wrong: SBAT self-check failed: Security Policy Violation </p>

en	Or

en	If you get this error message when starting Tails, then do a [[manual upgrade|doc/upgrade#manual]] of your Tails USB to Tails 6.7 or later.

en	If you get this error message when starting your regular Linux operating system, then it means that your Linux operating system is outdated.

en	Edit your UEFI settings to disable Secure Boot.

en	With Secure Boot disabled, your regular Linux operating system should start again.

en	To learn how to edit the BIOS or UEFI settings, search for the user manual of the computer on the support website of the manufacturer.

en	Update your regular Linux operating system.

en	Try to enable Secure Boot again in your UEFI settings.

en	If your regular Linux operating system still doesn't start, then disable Secure Boot again. You can try to enable Secure Boot again in the future.

en	It might take several months for your Linux distribution to provide updates before you can enable Secure Boot again.

en	Networking issues

en	Problematic Wi-Fi interfaces
it	Problematiche sulle interfacce Wi-Fi

en	Check in this section if there is a workaround to get your Wi-Fi interface work in Tails.

en	To know the model of your Wi-Fi interface:

en	Open a *Console* and execute the following command.

en	lspci -v | grep "Network controller"

en	88W8897 [AVASTAR] 802.11ac Wireless

en	On some computers with a Marvell Avastar 88W8897 Wi-Fi adapter, such as some Microsoft Surface Pro models, Tails fails to connect to Wi-Fi networks.

en	If you experience this problem, you can try to [[disable MAC address anonymization|doc/first_steps/welcome_screen/mac_spoofing]] that sometimes fixes it.

en	RTL8723BE PCIe Wireless Network Adapter

en	On some computers with a RTL8723be Wi-Fi adapter, Tails might fail to discover Wi-Fi networks, provide unreliable Wi-Fi connections, or have poor Wi-Fi performance.

en	You can try to [[add the following boot options when starting Tails|doc/advanced_topics/boot_options]] until you find a combination that works for you. The exact combination of options that works depends on the computer:

en	rtl8723be.fwlps=0 rtl8723be.ips=0

en	rtl8723be.ant_sel=1

en	rtl8723be.ant_sel=2

en	rtl8723be.ant_sel=1 rtl8723be.fwlps=0 rtl8723be.ips=0

en	rtl8723be.ant_sel=2 rtl8723be.fwlps=0 rtl8723be.ips=0

en	Broadcom Wi-Fi network interface needing broadcom-sta-dkms

en	Some Broadcom Wi-Fi interfaces require the [`wl`](https://wiki.debian.org/wl) driver, provided by the `broadcom-sta-dkms` Debian package, to work in Tails.

en	The `wl` driver is not included in Tails because it is proprietary.

en	Your device requires the `wl` driver if it is in the list of devices supported by the `broadcom-sta-dkms` package on the corresponding [Debian wiki page](https://wiki.debian.org/wl). If you find your device in the list of supported devices, then it is impossible to use your Wi-Fi card in Tails.

en	Authentication issues with Broadcom 43602

en	The Broadcom 43602 Wi-Fi interface asks for the password of Wi-Fi networks in a loop when trying to connect.

en	To fix this, try the following, if you have an iPhone:

en	Start Tails.
it	Avvia Tails.

en	Set up a personal Wi-Fi hotspot from your iPhone with the **Maximize Compatibility** option turned on.

en	Connect to your personal Wi-Fi hotspot from Tails.

en	Disconnect.

en	Connect to any other Wi-Fi network.

en	Lenovo Legion Y530

en	Wi-Fi adapter does not work.

en	To fix this issue, [[add the following boot option when starting Tails|doc/advanced_topics/boot_options]]:

en	modprobe.blacklist=ideapad_laptop

en	<!--

en	Security issues

en	Note: If we enable again this section in the future, we should link to it from /doc/anonymous_internet/Tor_Browser#fingerprint.

en	Browser fingerprint

en	There are known differences between the fingerprints of *Tor Browser* inside and outside of Tails:

en	For more detail, see our documentation about the [[fingerprint of *Tor Browser* in Tails|doc/anonymous_internet/Tor_Browser#fingerprint]].

en	-->

en	Other hardware issues

en	Touchpad configurations

en	Lenovo IdeaPad 3 Touchpad

en	This touchpad does not work by default. To fix this problem, [[add the following boot option when starting Tails|doc/advanced_topics/boot_options]]:

en	pci=nocrs

en	Lenovo ThinkPad 11e

en	Tails might be unstable and stop working regularly on some Lenovo ThinkPad 11e laptops, such as the 2015 model.

en	To fix this problem, [[add the following boot option when starting Tails|doc/advanced_topics/boot_options]]:

en	intel_idle.max_cstate=1

en	USB devices are not working on some GIGABYTE motherboards

en	To workaround this issue, you can try to:

en	Use other USB ports. For example, use USB 2 ports instead of USB 3 ports and vice versa.

en	Enable these 3 options in the BIOS

en	xHCI handoff

en	EHCI handoff

en	IOMMU controller

en	[[Add the following boot option when starting Tails|doc/advanced_topics/boot_options]]:

en	amd_iommu=on iommu=pt

en	Disable IOMMU in the BIOS then enable it again.

en	Some of these workarounds might disable some of the USB ports.

en	Graphics corruption in Tor Browser and Thunderbird

en	On some computers, _Tor Browser_ and _Thunderbird_ are displayed incorrectly:

en	The application window is initially empty and white.

en	The icons and menus only appear when hovered by the mouse.

en	The contents of the window is only displayed in stripes when scrolling.

en	To workaround this issue, [[add the following boot option when starting Tails|doc/advanced_topics/boot_options]]:

en	intel_iommu=off

en	This problem affects at least the following computers:

en	MacBookPro11,5

en	Other MacBooks with a Radeon R9 graphics adapter
it	- Altri MacBook con un adattatore grafico Radeon R9

en	<h2 id="acer-swift-3">Acer Swift 3</h3>
it	<h3 id="acer-swift-3">Acer Swift 3</h3>

en	In order to allow Tails to use all available memory, start Tails from the *F2 EFI setup* firmware entry.

en	<h2 id="dell-xps-15-7590-nvidia">Dell XPS 15 7590 with Nvidia graphics card</h3>

en	When using the Nvidia card of a Dell XPS 15 7590 laptop, the system may become unresponsive while using Tails.

en	To fix this, start Tails with the following [[boot option|doc/advanced_topics/boot_options]]:

en	pcie_port_pm=off

en	Other issues

en	Tails does not erase video memory

en	Tails doesn't erase the [[!wikipedia Video_random-access_memory desc="video memory"]].

en	When you restart your computer after using Tails, it might briefly display the last screen that was displayed in Tails.

en	If you shut down your computer instead of restarting it, the video memory will erase itself automatically after some time.

en	See [[!tails_ticket 5356 desc="Erase video memory on shutdown"]].