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[[!meta title="Known issues"]]
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Some machines have been reported to have problems starting Tails.

This list might not be accurate nor complete.

[[!toc]]

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Tails may not erase all the system memory on shutdown
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On rare systems (non-PAE with big amounts of memory),
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Tails does not consistently [[erase all system memory as it
should|bugs/sdmem_does_not_clear_all_memory]].

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Connecting to FTP servers is not possible
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Public FTP servers on the Internet are not reachable using Tails.
See [[the corresponding task|todo/fix_Internet_FTP_support]] for more details.

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YouTube video are hard to get
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[[HTML5 video are not easily seen on YouTube|todo/easier_YouTube]]. When the
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message *This video is currently unavailable* appears, the video can actually be viewed.
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Right-click on the page, select **NoScript** → **Blocked objects** and
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**Temporarily allow…** the video.
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Tails will never support videos which requires Flash (those with ads).

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Apple hardware
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For the moment, Tails has a very limited support for Apple hardware.

Most recent Apple hardware does not boot without UEFI, and currently
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Tails does not start with UEFI. See the corresponding
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[[ticket|/todo/UEFI]].

See also [[bugs/Some old Macbooks running Lion 10.7 not booting Lion..can we get booting fixed ?]].

Dell Inc. Latitude E6430/0CPWYR
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Do not start on USB sticks created using Tails USB Installer.

With BIOS versions A03 06/03/2012

Error message: `Invalid partition table!`

Dell System XPS L702X/03RG89
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Do not start on USB sticks created using Tails USB Installer.

With BIOS version A17 02/22/2012

Some users reported that the legacy BIOS shipped by Dell doesn't know
how to deal with the GPT partition scheme installed by Tails USB
Installer.

<http://en.community.dell.com/support-forums/laptop/f/3518/p/19392884/20010995.aspx>

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Dell Inspiron 8100
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The display panel will have the wrong resolution unless `video=LVDS-1:1600x1200
nouveau.noaccel=1` is added to the boot command line.

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ThinkPad X220 / T520
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See the corresponding [[ticket|/bugs/ThinkPad_X220_vs_GPT]].
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"Connect automatically" for NetworkManager connections isn't persistent.
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When the "Network Connections" persistence feature is
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activated, the "Connect automatically" settings isn't saved for any
connection.  While this is a bug, it's actually a good
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one. NetworkManager itself enables this option by default for all new
connections, and could result in users re-connecting to a previous network at
times when they don't want that.
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After using the Tails USB installer, the "emergency shutdown" doesn't work.
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The Tails USB installer messes a bit too much with the USB devices for the
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"emergency shutdown on media removal" feature to continue working after using
it. If you believe this feature is critical for the session you're running, we
advice you to reboot Tails.
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Tails fails to connect to certain Wi-Fi networks
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This may be related to the introduction of wireless regulation support
in Tails 0.13.
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Tails DVD eject failure
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Pressing the DVD eject button does not trigger emergency shutdown.
Also, the "normal" (non-emergency) shutdown procedure does not eject
the DVD anymore.

(Ticket: [[todo/fix_DVD_eject_at_shutdown]])
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Stream isolation inconsistency in Claws Mail
--------------------------------------------

Claws Mail isn't using its dedicated Tor SocksPort for Tor hidden
service IMAP/POP/SMTP servers (instead Tor's TransPort is used). This
is just a deviation from Tails' design and should have no adverse real
world consequences.