On 05/07/2017 02:14 PM, Vít Šesták wrote:
After some while of inactivity, I've made an experiment and successfully
created an HDMI “condom”. It is the most universal variant intended for
connecting a laptop to some HDMI male.
Ingredients: HDMI-male to DVI-female short cable + DVI-male to HDMI-
After some while of inactivity, I've made an experiment and successfully
created an HDMI “condom”. It is the most universal variant intended for
connecting a laptop to some HDMI male.
Ingredients: HDMI-male to DVI-female short cable + DVI-male to HDMI-female
adaptor, both are passive.
Price: R
On Monday, April 10, 2017 at 3:28:05 PM UTC-4, Vít Šesták wrote:
> > what about vga or dvi wires?
>
> Frankly, my main interest is HDMI. But I have briefly looked at VGA and DVI
> pinouts. It seems that the only input channels are hotplug (if you count
> this) and DDC (for resolutions etc.). Plu
On Sunday, April 9, 2017 at 8:49:47 PM UTC+2, Jean-Philippe Ouellet wrote:
> On Sun, Apr 9, 2017 at 9:42 AM, Vít Šesták
> <…@v6ak.com>
> wrote:
> >
> > * DDC (PIN 15+16) – needed for getting the resolution etc., present even in
> > current version of VGA. While there is some attack surface, it see
> what about vga or dvi wires?
Frankly, my main interest is HDMI. But I have briefly looked at VGA and DVI
pinouts. It seems that the only input channels are hotplug (if you count this)
and DDC (for resolutions etc.). Plus older VGA seems to have some pre-DDC
mechanism called “Monitor ID”. For
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
On 2017-04-01 13:58, Vít Šesták wrote:
> Hello,
> I've realized that HDMI offers not only graphical/sound output, but also many
> inputs. Well, some inputs are expected (listing of available output modes
> etc. works AFAIK even with VGA), but other
On Sun, Apr 9, 2017 at 9:42 AM, Vít Šesták
wrote:
>
> * DDC (PIN 15+16) – needed for getting the resolution etc., present even in
> current version of VGA. While there is some attack surface, it seems to be
> rather small.
Note that this is not strictly necessary for things to work though.
Hav
On Sunday, April 9, 2017 at 9:42:45 AM UTC-4, Vít Šesták wrote:
> Well, there seems to be a cheaper way to do roughly the same. In a nutshell,
> you just ensure there is no wire for those two things:
>
> * HEAC+ (audio return channel plus ethernet). HEAC+ is optional and thus safe
> to remove.
>
Well, there seems to be a cheaper way to do roughly the same. In a nutshell,
you just ensure there is no wire for those two things:
* HEAC+ (audio return channel plus ethernet). HEAC+ is optional and thus safe
to remove.
* CEC (remote control input) – This one is a bit more tricky. While CEC is
Chris Laprise:
> On 04/02/2017 03:42 AM, Vít Šesták wrote:
>> Yes, disabling those features can prevent thise threats. But I wonder
>> if Qubes does this by default or if I can disable it manually.
>
> We may want to open an issue for this, or at least a thread in
> qubes-developer.
>
>
>>
>> I
> We may want to open an issue for this, or at least a thread in
qubes-developer.
IMHO not at this time:
* Now, we don't know the current state. There might be nothing to change.
* AFAIR users/devel distinction is mostly based on stable/devel versions. Since
this question does not address any s
> I think having a graphics driver that disables any auxiliary modes (on
> the GPU) would be a reasonable first step in addressing the issue. It
> may also be possible to disable HDMI ports in favor of simpler ones like
> VGA. I'm not sure how much input DVI and Displayport allow, but I think
> th
On 04/02/2017 03:42 AM, Vít Šesták wrote:
Yes, disabling those features can prevent thise threats. But I wonder
if Qubes does this by default or if I can disable it manually.
We may want to open an issue for this, or at least a thread in
qubes-developer.
I have also an idea how to disable
Yes, disabling those features can prevent thise threats. But I wonder if Qubes
does this by default or if I can disable it manually.
I have also an idea how to disable it, but I am unsure if it will work
properly: Connect laptop HDMI port -> HDMI to DVI -> DVI to HDMI -> TV HDMI
port. But sinc
On 04/01/2017 04:58 PM, Vít Šesták wrote:
Hello,
I've realized that HDMI offers not only graphical/sound output, but also many
inputs. Well, some inputs are expected (listing of available output modes etc.
works AFAIK even with VGA), but others can be more or less surprising:
* audio return ch
Hello,
I've realized that HDMI offers not only graphical/sound output, but also many
inputs. Well, some inputs are expected (listing of available output modes etc.
works AFAIK even with VGA), but others can be more or less surprising:
* audio return channel
* CEC
* ethernet (!)
* maybe even more
16 matches
Mail list logo