Make computer behave as a screen #48
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Maybe just temporarily to figure out if another screen or the cable is to blame.
+6
The person:
also searched unsuccessfully.
For reference: HDMI.
If I remember correctly it may be a physical limitation specific to the HDMI controller manufacturer.
Related to #52.
Could use HDMI as a screen grabber to take clean screenshots when not running an OS maybe.
Elgato is a physical alternative.
Related to the calendar event of 10/08/25 at 8:00.
Related to Benjamin-Loison/scrcpy/issues/15.
Related to Benjamin_Loison/linux/issues/48.
Would help Benjamin-Loison/obs-studio/issues/15.
The person:
bought
https://www.amazon.fr/-/en/dp/B0BL3HVMWW
and it works as wanted in front of me, that is a webcam.
15.99 € + approximately 5 € of shipping is quite cheap, but for the usage I have is quite overkill.
Would help Benjamin_Loison/Console/issues/1.
DuckDuckGo search On Linux how to use computer HDMI as video grabber?.
Answers to the Ask Ubuntu answer 290971
Google search On Linux how to use computer HDMI as video grabber?.
https://chat.mistral.ai/chat/89a25f93-0eb7-4120-ace8-7b2ba3ae5bd8
DuckDuckGo and Google search Linux check if computer supports HDMI in.
Wikipedia: Consumer Electronics Control (1304461708)
The Super User answer 541155
Output:
Does not change if plug HDMI.
Output:
Output:
https://www.reddit.com/r/linuxmint/comments/17y5x8h/is_my_linux_mint_laptop_hdmi_port_for_output_only/
The Super User question 1861383 mentions a physical toggle.
Output:
Output:
does not seem to help.
DuckDuckGo and Google search Has Raspberry Pi HDMI in? and Has Framework HDMI in?.
I completely read https://community.frame.work/t/what-about-an-hdmi-in/3609:
Should investigate:
https://pikvm.org
https://nexdock.com
https://www.kickstarter.com/projects/johnsheng/phonebook-turn-any-smartphone-into-a-laptop-computer
Should watch YouTube video:
6ar72m4PLW0YuzukiHD/YuzukiLOHCC-PRO has 1.2k stars and last commit was 4 years ago.
I have read YuzukiHD/YuzukiLOHCC-PRO/blob/050caa6a987e58fae7847b20f4d42cc14f439b0a/README.md.
https://community.frame.work/t/what-about-an-hdmi-in/3609/17
Framework official concern about latency.
Should read https://hackaday.com/2022/10/14/an-open-source-hdmi-capture-card/.
YuzukiHD/YuzukiHCC has 59 stars and last commit was 4 years ago.
I have read YuzukiHD/YuzukiHCC/blob/fec692f822917f24fd14c6423c1129aec82efacb/README.md.
https://www.microcenter.com/product/645805/inland-hdmi-to-usb-a-c-video-capture-dongle
does not seem different from usual dongles.
Same for:
https://www.cnx-software.com/2023/05/31/eever-ej523d-chip-enables-4kp60-video-capture-or-streaming-over-usb-3-2/
ultrasemier/ms213x_community has 42 stars and last commit was 4 years ago.
I quickly went through:
ultrasemier/ms213x_community/blob/ddcc8c735e94a43a42a519674c437a7b5dcefa8d/readme.md
Should read https://community.frame.work/t/responded-fw-as-my-external-monitor-keyboard/15802.
The person:
used to achieve HDMI in about 10 years ago according to him, but he does not seem to remember how.
DuckDuckGo search Linux share screen via USB C.
santiagofdezg/linux-extend-screen has 417 stars and last commit was 6 years ago and relies on VNC, which is unwanted as I want a plug and play experience for the device obtaining the second display.
I quickly read https://www.reddit.com/r/linux4noobs/comments/19efkdg/deleted_by_user/.
Google search Linux share screen via USB C.
DuckDuckGo search Are Framework 13 USB C port DP compatible?.
https://knowledgebase.frame.work/en_us/usb-port-definition-matrix-framework-laptop-13-HkHVUHaTge#:~:text=Framework Laptop 13 (12th and 13th Generation Intel®)
mentions Thunderbolt 4 and DisplayPort 1.4 for the 4 ports.
DuckDuckGo search Linux use USB C DP.
I have read the Unix Stack Exchange answer 453112.
The Ask Ubuntu answer 1536452 mentions driver need depending on display device.
https://www.reddit.com/r/linux/comments/1b8avyh/habemus_external_monitor_on_nondp_usbc_port/ seems to use a physical adapter.
https://chat.mistral.ai/chat/58f79b42-7947-4fc1-8642-b14204b92710
https://chatgpt.com/share/69d3c02e-e674-8331-bc78-33be1f2cc145
The person:
agrees that we don't have any USB-C display or wireless display (even emulated).
Related to Benjamin-Loison/cinnamon/issues/132#issuecomment-2947038717.
DuckDuckGo search Emulate wireless display from Linux.
https://neilzone.co.uk/2024/02/a-working-wireless-plug-and-play-display-solution-for-linux-laptops-and-others-oss/ uses a hardware.
https://www.anavi.org/article/314/ is for connecting to a wireless display.
Google search Emulate wireless display from Linux.
https://www.reddit.com/r/linux/comments/vzjsbj/mirroring_phone_screen_wirelessly_in_just_one/ is about
scrcpy.https://tuxphones.com/howto-linux-as-second-wireless-display-for-linux/
I stopped reading at Current st(h)ack as it seems quite software specific not meeting my needs.
DuckDuckGo and Google search Emulate Google Cast wireless display from Linux.
https://www.reddit.com/r/Chromecast/comments/zipg6g/how_to_cast_to_my_linux_pc_like_if_its_a/
https://remotedesktop.google.com
is not meeting my needs.
https://chat.mistral.ai/chat/5f5cca3a-6011-41a3-b970-c1a5cd032bc0
Output:
Output:
I suspect it is a neighbor device:
I start suspecting that it is my Fairphone 4 LineageOS 23.2 finally.
It seems that an identifier is missing.
Output:
DuckDuckGo search
"codec list not initialized".https://discourse.nixos.org/t/gnome-network-display-codec-list-not-initialized/63248
Output:
Output:
output.txt
Output:
Output:
when reach Share Screen.
I tried both Display choices.
Display selection does not output anything.
Share results in:
I disabled my Debian 13 GNOME HP laptop
gufw.Output:
when click the Android.
Having or not Device connection prompt on my Fairphone 4 LineageOS 23.2 does not trigger any output.
Connect does not trigger any output.
Google search
"codec list not initialized".https://www.reddit.com/r/gnome/comments/107xwwg/gnomenetworkdisplays_codec_issue/
On my Linux Mint 22.3 Cinnamon Framework 13:
Output:
Output:
GNOME/gnome-network-displays has 65 stars and last commit was 2 weeks ago.
Output:
With
gufwdisabled.Except codec warning, same experience...
Output:
DuckDuckGo and Google search No such interface “org.freedesktop.portal.ScreenCast”.
https://forums.linuxmint.com/viewtopic.php?t=439451
does not seem to help.
DuckDuckGo search Emulate Google Cast wireless display sink from Linux.
albfan/miraclecast has 4.2k stars and last commit was last month.
albfan/miraclecast/blob/0b7f1f1f6586dc65ff480f3cda5c2170a70aa020/README.md
Output:
Output:
does not return anything and hangs.
Output:
on ctrl + c
sudo miracle-wifid:does not return anything, but brings back Wi-Fi access.
Related to Benjamin_Loison/windows/issues/110.
Contrarily to my will for Benjamin_Loison/Voice_assistant/issues/114 it mirrors the screen and does not extend it.
On Linux Mint 22.3 Cinnamon laptop owned by the person:
Output:
should maybe be supplements.
From my Debian 13 GNOME HP laptop to my Linux Mint 22.3 Cinnamon Framework 13:
Output:
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Output:
GNOME/gnome-network-displays/-/releases 0.99.0 is the last release, but it does not include an executable.
GNOME/gnome-network-displays/-/blob/88fc480220f156af56008f134f2bbb1d4a071406/README.md
Output:
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On my Linux Mint 22.3 Cinnamon Framework 13:
Output:
but no window shows up or an empty one if I remember correctly.
On my Debian 13 GNOME HP laptop:
Output:
GNOME/gnome-network-displays/-/blob/88fc480220f156af56008f134f2bbb1d4a071406/README.md#debugging may help.
In
gnome-network-displays/:Output:
Output:
GNOME/gnome-network-displays/-/issues/413 may help.
gnome-network-displaysstill works fine.DuckDuckGo search meson uninstall.
mesonbuild/meson/issues/13069#issuecomment-2057710767:
Output:
gnome-network-displaysstill works fine.Output:
Output:
On my Windows 11 HP laptop:
It worked for a second on my Fairphone 4 LineageOS 23.2.
On Xiaomi Mi A3 LineageOS 23.0:
On my Fairphone 4 LineageOS 23.2: