MobileRead Forums - View Single Post - Three new Boox readers -- Chinese language video

Renate · 10-23-2022, 08:14 PM

So, watching the video (and enduring the music) I find that:
The two big things use Qualcomm 665
The little one uses Qualcomm 630

USB Type C connectors may support different "Alternate modes". They are:

DisplayPort
Thunderbolt
MHL
HDMI

If DisplayPort alternate mode is supported you can use an "active" adapter to get HDMI.
If MHL or HDMI alternate mode is supported you can use a cheaper "passive" adapter.

This still leaves the question of what the heck is supported.

Edit: Hmm, now I'm really confused.
I looked at the kallsyms of my Poke3 (Snapdragon 636) and there are tons of symbols with "hdmi" in them.
I don't own a passive adapter, but I will pick one up and give it a try.
This could be a red herring as Onyx likes to shovel the same stuff into all the kernels.

Edit^2: I'm thinking that just maybe the 662 (NoteAir2) might support HDMI mode over USB. The kernel has interesting things like "typec_partner_register_altmode" which my Poke3 doesn't have.

10-23-2022, 08:14 PM	#14
Renate Onyx-maniac Posts: 4,064 Karma: 18027877 Join Date: Feb 2012 Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5, Go6	So, watching the video (and enduring the music) I find that: The two big things use Qualcomm 665 The little one uses Qualcomm 630 USB Type C connectors may support different "Alternate modes". They are: DisplayPort Thunderbolt MHL HDMI If DisplayPort alternate mode is supported you can use an "active" adapter to get HDMI. If MHL or HDMI alternate mode is supported you can use a cheaper "passive" adapter. This still leaves the question of what the heck is supported. Edit: Hmm, now I'm really confused. I looked at the kallsyms of my Poke3 (Snapdragon 636) and there are tons of symbols with "hdmi" in them. I don't own a passive adapter, but I will pick one up and give it a try. This could be a red herring as Onyx likes to shovel the same stuff into all the kernels. Edit^2: I'm thinking that just maybe the 662 (NoteAir2) might support HDMI mode over USB. The kernel has interesting things like "typec_partner_register_altmode" which my Poke3 doesn't have. Last edited by Renate; 10-23-2022 at 08:46 PM.