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[[!meta title="Known issues"]]
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[[!toc levels=2]]
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Problems starting Tails
=======================
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This section lists known problems with specific hardware. To report a problem
with different hardware see our [[report guidelines when Tails does not
start|doc/first_steps/bug_reporting/tails_does_not_start]].
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<a id="problematic-usb-sticks"></a>

Problematic USB sticks
----------------------

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<a id="sandisk"></a>

### SanDisk

Many SanDisk USB sticks are configured by the
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manufacturer as a fixed disk, and not as a removable disk. As a consequence,
they require removing the `live-media=removable` boot parameter, which [[is
dangerous|doc/first_steps/bug_reporting/tails_does_not_start#entirely]].

* SanDisk Cruzer Edge 8GB
* SanDisk Cruzer Extreme USB 3.0 16GB and 32GB
* SanDisk Cruzer Fit USB 2.0 8GB, 16GB, and 32G
* SanDisk Cruzer Force 8GB
* SanDisk Cruzer Glide 4GB, 8GB and 16GB
* SanDisk Cruzer Switch USB 2.0 8GB and 32GB
* SanDisk Cruzer USB 3.0 64GB
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* SanDisk Cruzer Blade 4GB, 8GB, and 32GB
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* SanDisk Cruzer Facet
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* SanDisk Ultra 32 GB
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SanDisk had begun the production of flash drives configured as fixed disk in
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2012 to meet new requirements for Windows 8 Certification, and ended it in mid-2014. The flash drives that
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comply with this certification will have the Windows 8 logo on their packaging.
If a flash drive does not have the Windows 8 logo on its packaging, then that
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drive will function as a removable disk and should work with Tails.
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See also [[!tails_ticket 6397]].

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<a id="pny"></a>

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### PNY

When installing Tails, PNY USB sticks have problems with the constant write load
and are prone to failure.

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### Other vendors

* Staples Relay USB 2.0 16GB, suffers from the same problem as [[some SanDisk USB sticks|known_issues#sandisk]].

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<a id="isohybrid-options"></a>

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Manual installation with Linux using `isohybrid`
------------------------------------------------

If you are not able to start Tails from a USB stick installed using the [[manual
installation instructions for Linux|doc/first_steps/installation/manual/linux]],
try to execute the following commands on a **new copy** of the original ISO
image:</p>

    isohybrid [tails-isohybrid.iso] -h 255 -s 63
    dd if=[tails-isohybrid.iso] of=[device] bs=16M

Then report back your results as explained on
<https://mailman.boum.org/pipermail/tails-testers/2014-July/000059.html>.

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Acer Chromebook C720
--------------------

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Booting fails with `Not enough memory to load specified image`. Work around by
adding the `mem=1500m` [[boot
option|/doc/first_steps/startup_options/#boot_menu]].
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Acer Travelmate 8573T-254G50M
-----------------------------

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Booting from DVD works fine, but does not start on USB sticks created
using Tails Installer.
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This problem might be corrected in Tails 1.1 and newer: please report
your test results back to us.
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ASUS VivoBook X202E
-------------------

Legacy support needs to be enabled in order to start Tails. To enable
legacy boot support, enable 'Launch CSM' under boot (menu).

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This problem might be corrected in Tails 1.1 and newer: please report
your test results back to us.

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Compaq 615
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You need to update the firmware to its latest version in order to start from a
device installed using Tails Installer.

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Dell Inc. Latitude E6430/0CPWYR
-------------------------------

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Does not start on USB sticks created using Tails Installer.
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With BIOS versions A03 06/03/2012 (and A09 and A11)
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Error message: `Invalid partition table!`

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

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This problem might be corrected in Tails 1.1 and newer: please report
your test results back to us.

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Dell XPS L702X/03RG89, Samsung RV520, Samsung Series 7 Chronos
--------------------------------------------------------------
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Does not start on USB sticks created using Tails Installer.
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We were reported that the legacy BIOS shipped on these systems doesn't
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know how to deal with the GPT partition scheme installed by Tails
Installer.
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This problem might be corrected in Tails 1.1 and newer: please report
your test results back to us.

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

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Dell Inspiron 8100
------------------

The display panel will have the wrong resolution unless `video=LVDS-1:1600x1200
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nouveau.noaccel=1` is added to the boot command line. This problem might be
corrected in Tails 1.1 and newer: please report your test results back
to us.
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Dell Dimension 2400
-------------------

Cannot start neither from USB nor from DVD. System crashes with a blank
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screen and locked up keyboard. This problem might be corrected in
Tails 1.1 and newer: please report your test results back to us.
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HP ProBook 4330s
----------------

With UEFI enabled, when chosing a boot device, select `Boot From EFI File` and
then `Filesystem Tails` and `EFI/BOOT/bootx64.efi`.

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Lenovo IdeaPad Y410p
--------------------

Cannot start Tails 1.1 from USB installed manually in Linux.

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Lenovo IdeaPad z585
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Goes back continuously to boot menu on Tails installed on DVD.

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Clevo W258CU, ThinkPad X121e, T420i, T410, T520, W520, T530, E325 and E530
--------------------------------------------------------------------------
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These machines do not start on USB sticks created using Tails USB
Installer, due to a firmware limitation.
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A workaround for some of these machines is to use the [[manual
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installation process|doc/first_steps/installation/manual/linux]].
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Note, however, that this technique does not allow you to set up
a persistent volume.
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This problem might be corrected in Tails 1.1 and newer: please report
your test results back to us.
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<a id="mac"></a>
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Mac
---

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* Some Mac need [rEFInd](http://sourceforge.net/projects/refind/)
  installed to boot Tails from a USB stick.
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* MacBookPro5,5 does not boot with Tails in UEFI mode.
* MacBook Air 3,2 (A1369 EMC 2392) freezes when booting Tails in
  UEFI mode.
* MacBookPro (early 2011) fails to boot from DVD since Tails 1.1.
* Mac Pro Tower (early 2008) fails to boot from a USB stick created by
  Tails Installer.

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<a id="problematic-virtual-machines"></a>

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Problematic virtual machines
----------------------------

Does not start in some virtualization environments, such as
QEMU 0.11.1 and VirtualBox 4.2. This can be corrected by upgrading to
QEMU 1.0 or VirtualBox 4.3, or newer.

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See also [[!tails_ticket 7232]] and [[!tails_ticket 7173]].
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<a id="chainloading"></a>

Chainloading Tails from GRUB
----------------------------

To workaround problems in booting Tails on laptops with UEFI support, it is
possible to chainload the syslinux on the ISO image from another boot loader
that is already working on the laptop, like GRUB. Be careful not to modify at
all the options of syslinux in the process.

The following commands, run from the GRUB shell, might be helpful:

    set root=(hd1)
    chainloader +1
    boot

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Security issues
===============
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Tails might 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 [[!tails_todo
more_efficient_memory_wipe desc="erase all system memory as it
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should"]].
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After using Tails Installer, the "emergency shutdown" doesn't work
------------------------------------------------------------------
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Tails 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 DVD eject failure
-----------------------

Pressing the DVD eject button does not trigger emergency shutdown.
Also, the "normal" (non-emergency) shutdown procedure does not eject
the DVD anymore.

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(Ticket: [[!tails_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.
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Tails fails to completely shutdown or restart
---------------------------------------------

When stopping Tails on some hardware, the memory wipe procedure fails to
complete: the display gets scrambled, but the computer doesn't
completely shutdown or restart. Sometimes the caps-lock button light of
the keyboard flashes.

<div class="caution">
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When this happens, there is no guarantee that the memory is wiped entirely.
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</div>

This issue has been reported on the following hardware:

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  - Apple when booting from a USB stick:
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    - MacBook Air 5,1
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    - MacBook Pro 7,1, 13-inch mid 2010
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    - MacBook Pro 9,2, 13-inch mid 2012
    - MacBook Pro 8,1, 13-inch late 2011
    - MacBook Pro 10,2
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    - MacBook Pro Retina 11,1, late 2013
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  - Hewlett-Packard HP Pavilion dv6 Notebook PC
  - Lenovo ThinkPad X61, only on emergency shutdown when pulling out the
    USB stick
  - Toshiba Satellite C855D
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  - Dell Inc. Studio 1458
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  - Fujitsu Lifebook AH531/GFO, only on regular shutdown, emergency
    shutdown works
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  - Apple MacBookPro 10,2
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<a id="fingerprint"></a>

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Fingerprint
===========
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<!-- If this section is empty adjust the [[fingerprint documentation|doc/about/fingerprint]]. -->

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<!-- The fingerprints of the Tor browser and the TBB are different: -->
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* Browser window resizing is in not reliable: [[!tails_ticket 6377]]
  and [[!tor_bug 10095]].

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Other issues
============

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Boot menu has display issues
----------------------------

Since Tails 1.1, one some hardware (ThinkPad X230, MacBookPro8,1),
the boot menu is not displayed properly. Tails starts fine, though.

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Connecting to FTP servers is not possible
-----------------------------------------

Public FTP servers on the Internet are not reachable using Tails.
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See [[!tails_todo fix_Internet_FTP_support desc="the corresponding
task"]] for more details.
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YouTube videos are hard to get
------------------------------
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[[!tails_todo easier_YouTube desc="HTML5 video are not easily seen on YouTube"]]. When the
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message *This video is currently unavailable* appears, the video can actually be viewed.
Right-click on the page, select **NoScript** → **Blocked objects** and
**Temporarily allow…** the video.

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Tails will never support videos which require Flash (those with ads).
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Tails fails to connect to certain Wi-Fi networks
------------------------------------------------

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This might be related to the introduction of wireless regulation support
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in Tails 0.13.
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VirtualBox guest modules are broken for 64-bit guests
-----------------------------------------------------
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VirtualBox guest modules allow for additional features when using Tails as a
VirtualBox guest: shared folders, resizable display, shared clipboard, etc.
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But due to [a bug in VirtualBox](https://www.virtualbox.org/ticket/11037), the
resizable display and shared clipboard
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only work in Tails if the VirtualBox guest is configured to have a 32-bit
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processor. The shared folders work both on 32-bit and 64-bit guests.
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Touchpad configurations
-----------------------

### Acer TravelMate B113 - ETPS/2 Elantech Touchpad

    synclient FingerPress=256;
    synclient TapButton3=0;
    synclient Clickpad=1;
    synclient VertTwoFingerScroll=1;
    synclient FingerLow=1;
    synclient FingerHigh=1;
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TorBrowser takes too long to shutdown
-------------------------------------

Since Tails 0.22, the browser sometimes takes too long to shutdown
([[!tails_ticket 6480]]). Waiting a few more seconds is usually enough
to let it close itself correctly.