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bug#57071: Xscreensaver not working since latest patch
From: |
Ludovic Courtès |
Subject: |
bug#57071: Xscreensaver not working since latest patch |
Date: |
Thu, 11 Aug 2022 15:59:21 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) |
Hi Rick & Roman,
Rick Huijzer <ikbenrickhuyzer@gmail.com> skribis:
> It seems that xscreensaver-auth needs to be setuid instead of the main
> xscreensaver binary. The screen-locker-service in xorg.scm sets the
> provided package setuid and sets the required pam configuration for the
> provided package. The problem is that the pam configuration needs to be set
> for xscreensaver (/etc/pam.d/xscreensaver) and setuid needs to be set for
> xscreensaver-auth.
>
> Interestingly when I setuid xscreensaver-auth manually I run into the
> following when unlocking:
> Aug 10 13:35:02 localhost unix_chkpwd[2197]: check pass; user unknown
> Aug 10 13:35:02 localhost unix_chkpwd[2197]: password check failed for user
> (rhuijzer)
> Aug 10 13:35:02 localhost xscreensaver-auth: pam_unix(xscreensaver:auth):
> authentication failure; logname= uid=1000 euid=1000 tty=:0 ruser= rhost=
> user=rhuijzer
>
> But this might be fixed in time by [RFC PATCH] gnu: linux-pam: Change path
> to unix_chkpwd helper <https://issues.guix.gnu.org/53468>.
>
> I don't know how to fix this elegantly, maybe create a dedicated service
> for xscreensaver instead of the standard screen-locker-service?
Yes, either that or a special case in ‘screen-locker-service’.
Could you give it a try?
Unfortunately I’m going to be away from keyboard for a bit; please do
ping here and/or on IRC if you don’t get a timely reply.
Thanks,
Ludo’.