4 ms·

All the use cases I have for one of these would need VGA sadly.

by xupybd 3y ago

RockRobotRock 3y ago
<$10 adapter
- xupybd 3y ago
  That is actually a really good point. I must be tired. Didn't even think of that.
- anilakar 3y ago
  Server VGA output to HDMI capture input? Needs an active converter in that direction, not a passive pinout-changing one.
  - RockRobotRock 3y ago
    yep
  - gsich 3y ago
    Yes. That price will get you such a device.
  - westurner 3y ago
    /? db9 to USB https://www.google.com/search?q=db9+to+USB https://www.google.com/search?q=db9+to+USB (RS-232, Serial port, UART, USB-TTL, USB-to-serial adapter: https://news.ycombinator.com/item?id=35120757 https://news.ycombinator.com/item?id=35120757 ) /? VGA capture card https://www.google.com/search?q=vga+capture+card https://www.google.com/search?q=vga+capture+card /? HDMI capture card USB-A Linux https://www.google.com/search?q=hdmi+capture+card+USB-A+linux https://www.google.com/search?q=hdmi+capture+card+USB-A+linu... -- Intel ME Management Engine, Intel AMT, Intel vPro (ME+AMT), AMD Pro; VNC to boot-time BIOS configuration Intel AMT: https://en.wikipedia.org/wiki/Intel_Active_Management_Technology https://en.wikipedia.org/wiki/Intel_Active_Management_Techno... : > AMT is designed into a service processor located on the motherboard, and uses TLS-secured communication and strong encryption to provide additional security.[6] AMT is built into PCs with Intel vPro technology and is based on the Intel Management Engine (ME).[6] AMT has moved towards increasing support for DMTF Desktop and mobile Architecture for System Hardware (DASH) standards and AMT Release 5.1 and later releases are an implementation of DASH version 1.0/1.1 standards for out-of-band management.[7] AMT provides similar functionality to IPMI, although AMT is designed for client computing systems as compared with the typically server-based IPMI. https://www.reddit.com/r/linux/comments/s41a17/in_2017_amd_promised_to_look_into_opensourcing/ https://www.reddit.com/r/linux/comments/s41a17/in_2017_amd_p... : > To understand what PSP and ME can do you need to understand CPU security rings. https://en.wikipedia.org/wiki/Protection_ring https://en.wikipedia.org/wiki/Protection_ring . These are different levels of privilege software has on the system. > Originally the Linux kernel occupies ring 0, which is the level with highest privilege. Then user space would run in some other ring. > However with things like PSP and ME they have created rings lower then ring 0. Things like Ring -1 and -2. Intel Minix ME runs in -3 ring. vPro supports VNC over TLS. coreboot and Libreboot don't support PQ SSH, TLS, VNC, or DASH; https://en.wikipedia.org/wiki/Libreboot https://en.wikipedia.org/wiki/Libreboot, https://en.wikipedia.org/wiki/Coreboot https://en.wikipedia.org/wiki/Coreboot DASH: Desktop and Mobile Architecture for System Hardware https://www.dmtf.org/standards/dash https://www.dmtf.org/standards/dash : > DASH provides support for the redirection of KVM (Keyboard, Video and Mouse) and text consoles, as well as USB and media, and supports the management of software updates, BIOS (Basic Input Output System), batteries, NIC (Network Interface Card), MAC and IP addresses, as well as DNS and DHCP configuration.
  - numpad0 3y ago
    There are both VGA-HDMI and HDMI-VGA easily powered from a spare USB port, sometimes even HDMI bus power. I’ve heard the data can be converted line-by-line and timings are close enough that such devices never need to hold the complete framebuffer.
hugs 3y ago
The project lists several DIY options for building (more like buying and plugging in) the hardware yourself. You might be able to find an off-the-shelf VGA-to-HDMI adapter/converter that would then be downstream compatible with the rest of the stack. There is discussion about VGA support in the project's GitHub Issues and Discord.

All the use cases I have for one of these would need VGA sadly.

by xupybd 3y ago

All the use cases I have for one of these would need VGA sadly.

RockRobotRock 3y ago

<$10 adapter

xupybd 3y ago
That is actually a really good point. I must be tired. Didn't even think of that.
anilakar 3y ago
Server VGA output to HDMI capture input? Needs an active converter in that direction, not a passive pinout-changing one.
- RockRobotRock 3y ago
  yep
- gsich 3y ago
  Yes. That price will get you such a device.
- westurner 3y ago
  /? db9 to USB https://www.google.com/search?q=db9+to+USB https://www.google.com/search?q=db9+to+USB (RS-232, Serial port, UART, USB-TTL, USB-to-serial adapter: https://news.ycombinator.com/item?id=35120757 https://news.ycombinator.com/item?id=35120757 ) /? VGA capture card https://www.google.com/search?q=vga+capture+card https://www.google.com/search?q=vga+capture+card /? HDMI capture card USB-A Linux https://www.google.com/search?q=hdmi+capture+card+USB-A+linux https://www.google.com/search?q=hdmi+capture+card+USB-A+linu... -- Intel ME Management Engine, Intel AMT, Intel vPro (ME+AMT), AMD Pro; VNC to boot-time BIOS configuration Intel AMT: https://en.wikipedia.org/wiki/Intel_Active_Management_Technology https://en.wikipedia.org/wiki/Intel_Active_Management_Techno... : > AMT is designed into a service processor located on the motherboard, and uses TLS-secured communication and strong encryption to provide additional security.[6] AMT is built into PCs with Intel vPro technology and is based on the Intel Management Engine (ME).[6] AMT has moved towards increasing support for DMTF Desktop and mobile Architecture for System Hardware (DASH) standards and AMT Release 5.1 and later releases are an implementation of DASH version 1.0/1.1 standards for out-of-band management.[7] AMT provides similar functionality to IPMI, although AMT is designed for client computing systems as compared with the typically server-based IPMI. https://www.reddit.com/r/linux/comments/s41a17/in_2017_amd_promised_to_look_into_opensourcing/ https://www.reddit.com/r/linux/comments/s41a17/in_2017_amd_p... : > To understand what PSP and ME can do you need to understand CPU security rings. https://en.wikipedia.org/wiki/Protection_ring https://en.wikipedia.org/wiki/Protection_ring . These are different levels of privilege software has on the system. > Originally the Linux kernel occupies ring 0, which is the level with highest privilege. Then user space would run in some other ring. > However with things like PSP and ME they have created rings lower then ring 0. Things like Ring -1 and -2. Intel Minix ME runs in -3 ring. vPro supports VNC over TLS. coreboot and Libreboot don't support PQ SSH, TLS, VNC, or DASH; https://en.wikipedia.org/wiki/Libreboot https://en.wikipedia.org/wiki/Libreboot, https://en.wikipedia.org/wiki/Coreboot https://en.wikipedia.org/wiki/Coreboot DASH: Desktop and Mobile Architecture for System Hardware https://www.dmtf.org/standards/dash https://www.dmtf.org/standards/dash : > DASH provides support for the redirection of KVM (Keyboard, Video and Mouse) and text consoles, as well as USB and media, and supports the management of software updates, BIOS (Basic Input Output System), batteries, NIC (Network Interface Card), MAC and IP addresses, as well as DNS and DHCP configuration.
- numpad0 3y ago
  There are both VGA-HDMI and HDMI-VGA easily powered from a spare USB port, sometimes even HDMI bus power. I’ve heard the data can be converted line-by-line and timings are close enough that such devices never need to hold the complete framebuffer.

hugs 3y ago

The project lists several DIY options for building (more like buying and plugging in) the hardware yourself. You might be able to find an off-the-shelf VGA-to-HDMI adapter/converter that would then be downstream compatible with the rest of the stack. There is discussion about VGA support in the project's GitHub Issues and Discord.