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Bug#1109314: linux-image-6.15-amd64: Screen remains black during dm-crypt password prompt

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Hi

On Tue, Jul 15, 2025 at 03:26:46AM +0200, Erik Tews wrote:
> Package: src:linux
> Version: 6.15.6-1~exp1
> Severity: important
> X-Debbugs-Cc: debian-amd64@lists.debian.org
> User: debian-amd64@lists.debian.org
> Usertags: amd64
> 
> I have a Thinkpad T14 Gn 6 AMD and I have an encrypted root filesystem. Usually
> I get asked for the password that is used to setup the root filesystem by dm-
> crypt. This worked fine with older kernels, such as 6.12. When I try
> 6.15.6.1~exp1, then I can see Grub but then the laptop screen remains black.
> When I just enter the password blindly and press enter, then the screen turns
> on again and I can see the kernel messages and the regular system startup.
> 
> There is another similar bug report #1109203 that outlines a different issue,
> but there the screen is still on. Right now I assume this is unrelated.

Does this issue persist with the newest kernel in unstable?

Regards,
Salvatore

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Bug#1109314: linux-image-6.15-amd64: Screen remains black during dm-crypt password prompt Salvatore Bonaccorso <carnil@debian.org> - 2025-09-06 21:10 +0200

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