So, I'm still having serious issues with this thing: I used the following procedure to update the grub-bootloader, from Linux Mint:
mount /dev/sda6 /mnt sudo mount --bind /dev/ /mnt/dev sudo mount --bind /proc/ /mnt/proc sudo mount --bind /sys /mnt/sys cp /etc/resolv.conf /mnt/etc/resolav.conf sudo chroot /mnt I then changed the line: GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="iommu=soft" and ran update-grub. I do have IOMMU disabled, and I did the same thing to my Linux Mint Intallation, and now I can run *that* without IOMMU support enabled. I reloaded optimized defaults on the UEFI, and I saw my change in GRUB2. Now, I consistently get another error message when trying to boot. [ 3.(something)] [drm] 0000:01:00.0: PMC unhandled INTR 0x44000000 The error messages from recovery mode may be slightly more insightful: [ 3.(something)] [drm] nouveau 0000:01:00.0: Register 0x00680520 not found in PLL limits table [ 3.(something)] [drm] Supports Vblank Timestamp Caching Rev 1 (10.10.2010) [ 3.(something)] [drm] No driver support for vblank timestamp query. [ 3.(something)] [drm] nouveau 0000:01:00.0 voltage table 0x50 Unknown [ 3.(something)] [drm] nouveau 0000:01:00.0: Register 0x.... not found in PLL limits table [ 3.(something)] [drm] nouveau 0000:01:00.0: Failed to determine boot perflvl [ 3.(something)] [drm] nouveau 0000:01:00.0: Pixel Clock Comparison table not found Otherwise this is a 100% squeeky clean fresh install of Debian. A great column of the item listed above this list precedes it. Now I have no idea what is wrong.... Thanks Again, A user
