XPost: uk.comp.os.linux, alt.comp.microsoft.windows, alt.comp.os.windows-11   
   From: java@evij.com.invalid   
      
   On 2025-11-11 13:19, Java Jive wrote:   
   > On 2025-11-11 03:45, Paul wrote:   
   >>   
   >> On Mon, 11/10/2025 7:27 PM, Java Jive wrote:   
   >>>   
   >>> Then reboot, and it all works.   
   >   
   > Except, I've discovered, OSs won't hibernate, all that happens is that   
   > the screen locks, the PC doesn't even sleep, let alone hibernate.   
      
   I wrote this some time ago, so can not be sure now what was going on   
   then, but my suspicion is that it was the same as I recently discovered   
   on one particular PC ...   
      
   The PC has a single GPT disk dual-booting between Windows 11 & Ubuntu   
   24.  I have two GRUB entries to boot Windows 11.  The first is a   
   conventional Windows Boot Manager entry in the EFI partition, the second   
   is similar but installed in the Windows 11 partition \EFI folder.  If   
   Windows 11 is booted via the first option, it hibernates, but if it   
   booted via the second option, it won't hibernate as originally I   
   described above.  I think it's something to do with Ubuntu/GRUB not   
   being able to access some needed data on the ntfs partition when booting.   
      
   The relevant entries in /boot/grub/grub.cfg are as follows:   
      
   # Boots and hibernates   
   menuentry 'Windows Boot Manager (on /dev/sda1)' --class windows --class   
   os $menuentry_id_option 'osprober-efi-E00A-0248' {   
            savedefault   
            insmod part_gpt   
            insmod fat   
            set root='hd0,gpt1'   
            if [ x$feature_platform_search_hint = xy ]; then   
                search --no-floppy --fs-uuid --set=root   
   --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1   
   E00A-0248   
            else   
              search --no-floppy --fs-uuid --set=root E00A-0248   
            fi   
            chainloader /efi/Microsoft/Boot/bootmgfw.efi   
   }   
   # Boots but does not hibernate   
   menuentry 'Windows 11 Professional (on /dev/sda2)' --class windows   
   --class os $menuentry_id_option 'osprober-efi-53C598050A7F9BDA' {   
            savedefault   
            insmod part_gpt   
            insmod ntfs   
            set root='hd0,gpt2'   
            if [ x$feature_platform_search_hint = xy ]; then   
              search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2   
   --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 53C598050A7F9BDA   
            else   
              search --no-floppy --fs-uuid --set=root 53C598050A7F9BDA   
            fi   
            chainloader /EFI/Microsoft/Boot/bootmgfw.efi   
   }   
      
   --   
      
   Fake news kills!   
      
   I may be contacted via the contact address given on my website:   
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