Why are you typing in Grub? All I do is use an arrow key to select from the different operating systems that are in the Grub menu.
Are you dual booting with different operating systems. If not then wait 10 seconds and the default (only) operating system will load. That should happen even without a keyboard attached.
Keyboard drivers do not get loaded until Linux is well on the way to being loaded. Secure Boot will block drivers if they are not registered in the Secure Boot database.
I should have stated that I am dual booting Ubuntu 24.04 and Windows 11, sorry.
During setup I needed to block drivers like Nouveau and block Nvidiaâs GSP with NVreg_EnableGpuFirmware=0. temporary, so it would have been easier if I could of pressed e and edit GRUB and append the LINUX command line.
When I press the down arrow the cursor once it goes down two lines some of the time, preventing me from accessing items on the boot list. If I want to load a different Kernel pressing enter on the main menu (if I can even select it) item double types enter on the 1st item on the sub menu so i canât get into recovery mode ever..
I never had this problem before going full UEFI (Secure Boot and CSM disabled)
I think the problem is CSMâs Legacy BIOS emulation being disabled more than Secure Boot. It would seem GRUB doesnât play nice with UEFI only BIOSâs.
I was hopping the issue had been addressed as it must have come up before now.
I cannot re-enable CSM as it would now break my Windows 11 install due to the secure boot and bitlocker processes are in effect. I would need to nuke Windows from orbit and start over
To be clear both operating systems are working just fine, I just wanted to know why GRUB is acting up, and if there is anything I can do to make it useful again should I need to get into recovery mode again.
Iâve misunderstood your earlier comment.
I was under the impression that CSM was enabled but, clearly, it isnât.
Furthermore, I would doubt that enabling CSM would have any influence on Grub at all.
Good news, indeed
As a test, can you boot into your USB installer - do you have the same difficulty with Grub there?
I have tried numerous installs the last few days with and without 3rd Party video drivers option, none seem to have any effect on my GRUB problem. I have tried versions 24.04.01, 24.10, 25.04, and 25.10 all exhibit the same problem.
BIOS, NVMe, and SSD firmware is all up to date (I flashed the BIOS a couple of days ago to the latest)
$ lspci -k | grep -EA3 âVGA|3D|Displayâ
libkmod: ERROR ../libkmod/libkmod-config.c:712 kmod_config_parse: /etc/modprobe.d/nvidia.conf line 1: ignoring bad line starting with ânvidia.NVreg_EnableGpuFirmware=0â
I think this error is due to me disabling GSP but GRUB was the same when it was enabled
Currently using
$ nvidia-smiThu Feb 12 03:11:20 2026±--------------------------------------------------------------------------------------+| NVIDIA-SMI 535.288.01 Driver Version: 535.288.01 CUDA Version: 12.2 ||-----------------------------------------±---------------------±---------------------+| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC || Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. || | | MIG M. ||=========================================+======================+======================|| 0 NVIDIA GeForce RTX 3090 Off | 00000000:06:00.0 On | N/A || 0% 41C P8 17W / 350W | 596MiB / 24576MiB | 1% Default || | | N/A |±----------------------------------------±---------------------±---------------------+±--------------------------------------------------------------------------------------+| Processes: || GPU GI CI PID Type Process name GPU Memory || ID ID Usage ||=======================================================================================|| 0 N/A N/A 2472 G /usr/lib/xorg/Xorg 247MiB || 0 N/A N/A 2695 G /usr/bin/gnome-shell 67MiB || 0 N/A N/A 13064 G /usr/share/librewolf/librewolf 162MiB || 0 N/A N/A 14438 G /usr/bin/gnome-text-editor 19MiB || 0 N/A N/A 15730 G /usr/bin/nautilus 17MiB |±--------------------------------------------------------------------------------------+
I have tried other drivers including Nouveau, 565, 590 from additional drivers and .run installers.
I am currently using the 535 from additional drivers as 565.77 proprietary requires kernel 6.8.0-49 and i cannot be bothered downgrading from 6.17.0-14 again given I cannot select a different Kernel on the GRUB menu.
There is no USB Legacy option for my motherboard. I even updated the BIOS to see if this option would appear based on a prompt from AI which turned out to be an Hallucination. This Idea came up along with AI suggesting I try connecting my KB and Mouse to a USB 2.0 Hub so to see if forcing USB 3.0 header to go into USB2.0 mode would play nicely with GRUB.
Unfortunately my Motherboard only USB 2.0 breakout port is not connected to my case so I only have access to USB 3 ports.
Fast startup is disabled in Windows and I have booted both operating systems from a cold start many times.
I am re-naming this thread grub lagging and double typing is unreliable instead of unusable.
I ran into an issue where I need to use Nvidia driver 565.77 in order to use SteamVR. For some reason installing this driver just wouldnât work on Kernel 6.17.0-14. I was getting loads of errors (I think it was dmks errors).
So, I had to download and install the Kernel 6.8.0-49 which it is known to work.
I hit a wall again as I needed to switch to the older Kernel. For some reason grub-reboot command wouldnât work. It appeared to do nothing, not even an error message.
It turns out that my GRUB doesnât always double type sometimes it does register a single key press. I was able to get into the advanced menu after a dozen times trying and booted 6.8.0-49 and then remove 6.17.0-14.
The Nvidia driver installed without any issue now.
I think I will just live with the erratic GRUB menu now unless someone comes up with a fix.
