Created attachment 878686 [details]
Kernel messages during boot (dmesg)

Installation of the 6.11.8 kernel on Tumbleweed has introduced a new problem
during boot of my laptop (booting either from cold or restoring for sleep
mode).
The normal Plymouth startup screen flashes up on my display, then the screen
goes blank for between 20 and 30 seconds (time varies from instance to
instance) before reappearing  prior to the login screen displaying. During the
blank period, the laptop is completely non-responsive.

My laptop is a Dell Inspiron 16 Plus 7640 factory fitted with an NVIDIA GeForce
RTX 4060 Laptop GPU. It is fully updated to the latest Tumbleweed (20041119) as
of this bug report's submission date.

I have attached the output of dmesg generated immediately after booting the
laptop and logging in. Note that there is a pause in the messages between
5.605256 and 22.595812 that roughly corresponds with the observed blank period;
following this are two messages that indicate a kernel issue with i915:

[   22.595812] [     T11] i915 0000:00:02.0: [drm] *ERROR* GT1: GSC proxy
component didn't bind within the expected timeout
[   22.595919] [     T11] i915 0000:00:02.0: [drm] *ERROR* GT1: GSC proxy
handler failed to init