Bug#1125273: Black screen flash during GDM to GNOME session transition after 13.3 upgrade

[Antonio José Masiá]

Hi Simon,

I installed the three packages from your repository:

gnome-shell_48.7-0+deb13u1+1+g122f544e6_amd64.deb
gnome-shell-common_48.7-0+deb13u1+1+g122f544e6_all.deb
gnome-shell-extension-prefs_48.7-0+deb13u1+1+g122f544e6_amd64.deb

After rebooting, the black screen flash during the GDM to GNOME session transition is gone. The issue appears to be fixed.

One additional observation: I'm noticing that it takes more than 10 seconds from unlocking the LUKS-encrypted root partition until GDM appears. Could this be related, or is this expected behavior?

Thank you for the quick response and the patched packages!



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Antonio José Masiá
Software Engineer

ajmasia.dev at ysnp.link • betapermanente.link
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On Saturday, January 24th, 2026 at 11:54, Simon McVittie <smcv at debian.org> wrote:

> On Fri, 23 Jan 2026 at 10:29:33 +0000, Simon McVittie wrote:
> 
> > Not having a perfectly smooth animation is not a serious bug, and we
> > have plenty of higher priorities. However, this might be related to
> > other regressions that are more serious (#1125941, #1126174, #1125275)
> > so it seems worthwhile to investigate.
> 
> 
> Please try the version from
> https://people.debian.org/~smcv/temp/2026/bug1125941/revert/
> 
> which addresses at least one of those regressions, and perhaps the one
> you've reported as well.
> 
> smcv