Public bug reported:

Hardware:
- Dell Inspiron 5521, AMD64
- Dual boot: Windows + Ubuntu

Steps to reproduce:
1. Ubuntu software updater ran (did not reboot after)
2. Installed kernel 7.0.3-070003-generic via ubuntu-mainline-kernel.sh without 
rebooting first
3. Rebooted the system
4. Selected Ubuntu from BIOS boot menu (F12)
5. Black screen immediately after boot selection, system hangs indefinitely
6. GRUB menu never appears 
7. Because GRUB menu was not visible and system was stuck, had to boot into 
Ubuntu Live USB
8. From Live USB, chrooted into the installed system
9. Removed kernel 7.0.3 packages via dpkg --purge:
   - linux-headers-7.0.3-070003
   - linux-headers-7.0.3-070003-generic
   - linux-image-unsigned-7.0.3-070003-generic
   - linux-modules-7.0.3-070003-generic
10. Ran update-grub and grub-install /dev/sda from chroot
11. System now boots normally with kernel 6.17.0-23-generic

Expected behavior:
Kernel 7.0.3 should boot successfully or at minimum fall back gracefully.

Actual behavior:
Complete black screen after BIOS boot menu. No kernel messages, no GRUB, no 
display output whatsoever. System is unresponsive.

Note:
Kernel 6.17.0-23-generic and 6.17.0-22-generic both work perfectly on this 
hardware.
This may be a regression in kernel 7.0.3 affecting older Intel GPU or display 
initialization on Dell Inspiron 5521.

** Affects: ubuntu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2151174

Title:
  Kernel 7.0.3-070003-generic causes black screen on boot, no display
  output

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