**Note:** The HCL is a compilation of reports generated and submitted by users. Except in the case of developer-reported entries, the Qubes team has not independently verified the accuracy of these reports. If using the list to make a purchasing decision, we recommend that you first test the hardware yourself, if possible.
**Legend**
**Background colors**
Green
The reporter has clearly stated that **all** components and features are working correctly.
White
The reporter has sent an HCL Info output which indicates everything is OK without any comments.
Yellow
Some non-required feature is missing (e.g., VT-d), or manual tweaking is required in order to get some components to work.
Red
Some primary feature is not working. These are usually machines with poor or nonexistent Linux support in general.
**Marks**
OK
The feature is working correctly.
X
The feature does not work or is not present.
\*
An asterisk (\*) indicates that some kind of tweaking is needed.
A blank cell indicates that we lack information about a feature.
**Device**
**Qubes R1**
**Qubes R2 Beta2**
**Reported by**
Standard feautures
VT-d
Remarks
Standard features
VT-x
(HVM)
VT-d
Remarks
**Developer Reported Machines**
Lenovo Thinkpad T420
OK
OK
Qubes core developers
Lenovo Thinkpad T420s
(Intel HD graphics; Sandy Bridge; i5-2520M)
OK
OK
OK
OK
OK
Requires kernel 3.2.30 to support S3 sleep (the default kernel S3 sleep causes system reboot)
Qubes core developers
Lenovo Thinkpad T61
(Nvidia Quadro NVS 140M)
OK
X
Qubes core developers
Samsung X460
OK
X
Qubes core developers
Sony Vaio Z 12
(2010 edition)
OK
OK
[read more](/trac/wiki/SonyVaioTinkering)
OK
OK
OK
[read more](/trac/wiki/SonyVaioTinkering)
Qubes core developers
Dell Latitude E6420
(Intel HD graphics; Sandy Bridge; i5-2520M)
OK
OK
needs kernel 3.4.17+
OK
OK
OK
Suspend doesn't work on 3.7.6 kernel, but work on 3.7.4
In order to generate an HCL report in Qubes, simply open a terminal in dom0 and run `qubes-hcl-report <vm-name>`, where `<vm-name>` is the name of the VM to which the generated HCL files will be saved. (Note: If you are working with a new Qubes installation, you may need to update your system in order to download this script.)
Users are encouraged to submit their HCL reports for the benefit of further Qubes development and other users. If you would like to submit your HCL report, please send the **HCL Info**`.txt` file to `qubes-users@googlegroups.com` (see [here](/wiki/QubesLists) information about the mailing lists) with the subject `HCL - <your machine model name>`. Please include any useful information about any Qubes features you may have tested (see the legend above), as well as general machine compatibility (video, networking, sleep, etc.). If you have problems with your hardware, please send the **HCL Support Files**`.cpio.gz` file as well.
**Please note:** The **HCL Support Files** may contain numerous hardware details, including serial numbers. If, for privacy or security reasons, you do not wish to make this information public, please **do not** send the `.cpio.gz` file to the public mailing list.
