The instructions are in comment #18. Just replace 'amdgpu' with 'i915'.
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Title:
Disk password prompt isn't shown in external monitor
To manage n
mine is a dell 7490 with intel graphics connected to a dell WD19DCS docking
station
I dont use the built in monitor unless I am traveling and have too.
Rest of the time two monitors and a real keyboard at home.. which is 90%
or more of the time.
What modules do i have to add to get mine to displ
my thinkpad has i915, and I never plug it to any external monitor,
except for testing stuff like this :)
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Title:
Disk password prompt isn't shown
I probably can do, but as I said, I think that this configuration is
more and more common thanks to USB-C (you can just connect one cable and
have a desktop system). But, of course, without objective data about
real usage, all we have are just opinions, so I agree in that it's
better to close this
I feel that photo kind of proves my point about how uncommon the
situation is. Not invalid, just uncommon.
I also wonder if you could trick the laptop into using the external
monitor as primary? Maybe if you can configure the BIOS to turn the
machine on in response to USB keyboard/mice while the l
I have to disagree. I attach a picture of my workbench, where you can
see that I have an external monitor as the main display, and the laptop
is just behind because I don't use its screen. As you can see, I have
to, literally, look over the monitor to be able to know when do I have
to type the pass
The issue will occur with all GPU types. All DRM drivers that support
multiple monitors.
But I'd argue it's not a problem at all. Not wanting to have the boot
display in view when you power on the machine is so uncommon that I feel
the medicine would be worse than the disease. Just apply the worka
So, the big question now is... with which graphic chips the unlock
prompt doesn't appear on an external boot display?
In my case, with AMD integrated graphics it doesn't appear, and I think
that it's safe to presume that it will happen with any other AMD
graphics chip, no matter if it is integrate
The scripts for automatically deciding what goes into the initrd can be
found in /usr/share/initramfs-tools/hooks/ and initramfs-tools in
general could certainly be made more user-friendly...
In the end the foundations/kernel teams will decide what goes in and
what doesn't. I just have a preferenc
I can try to do it, but of course only if you consider that it worth it.
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Title:
Disk password prompt isn't shown in external monitor
To manage
When I say "needed", I mean to add only the specific module for the
current hardware. This is: in my system, only the amdgpu would be added,
not the intel or the nVidia ones. Also, we can add more heuristics... or
just make it manual, so if an user has this problem, we can tell they:
"just run
Yes it's been done before. I think the Nvidia drivers still do it
because they're designed for older kernel builds that don't have
SimpleDRM included.
But "needed" is a strong word in this case. It's unusual that you
wouldn't be able to see the primary boot display at boot time. So in
that case I
I can confirm that, in my case, adding "amdgpu" to the initramfs does
the trick. So now here comes the idea... What if we dynamically add to
the initramfs the graphics driver needed for the current system only if
the hard disk is encrypted? This is: add a script that is run right
before updating in
** Tags added: simpledrm
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Title:
Disk password prompt isn't shown in external monitor
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This is probably a "Won't Fix" but I'll give others time to chime in and
correct me...
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Title:
Disk password prompt isn't shown in external monit
Timo is right I think. Secondary monitors will only wake up after:
1. The native kernel DRM graphics driver is loaded.
2. Plymouth detects the new driver and switches to it.
And the native kernel DRM graphics drivers seem to be loading slightly
later now that we have kicked them out of the initrd
I was told this is a know limitation of simpledrm, and the only remedy
is to load the native driver first before FDE pwd prompt..
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Title:
Disk pa
apport information
** Tags added: apport-collected noble wayland-session
** Description changed:
- Up to Ubuntu 23.10, when my laptop (which has encrypted hard disk)
- booted, it asked for the deciphering password as usual, and, if an
- external monitor was connected, the prompt was shown in bot
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: plymouth (Ubuntu)
Status: New => Confirmed
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