Help > Laptop Hardware
Unresponsive keyboard from GRUB to KDM
sling-shot:
My Samsung laptop of less than 6 months has had 2 falls from table height while it was in the laptop bag. 2nd time I saw some misaligned frames which I could correct by pressing the edges.
Since a few days, keyboard goes unresponsive once GRUB loads until I get to the KDM login. From there on it is active again. This can be cured if I remove and replace the battery. Otherwise even a full shutdown does not cure this condition.
[There is also another issue of the touchpad going off now and then. I manage with an external mouse. This is confirmed to happen when in Windows too. Hence not likely to be software related.]
Just17:
--- Quote ---Since a few days, keyboard goes unresponsive once GRUB loads until I get to the KDM login.
--- End quote ---
Sounds similar to a BIOS setting for the keyboard being set to OS control and not BIOS control.
sling-shot:
--- Quote from: Just17 on November 21, 2012, 09:25:00 AM ---
--- Quote ---Since a few days, keyboard goes unresponsive once GRUB loads until I get to the KDM login.
--- End quote ---
Sounds similar to a BIOS setting for the keyboard being set to OS control and not BIOS control.
--- End quote ---
I generally go through the BIOS during my initial period with any machine and I do not remember having read anything similar to that.
(It looks like the new breed of UEFI BIOS? There is an option for secure boot.)
I will look again keeping this point in mind.
But if that is the case why does this happen sometimes and not some other times? Can any OS change BIOS settings directly?
Just17:
--- Quote from: sling-shot on November 21, 2012, 09:33:06 AM ---
--- Quote from: Just17 on November 21, 2012, 09:25:00 AM ---
--- Quote ---Since a few days, keyboard goes unresponsive once GRUB loads until I get to the KDM login.
--- End quote ---
Sounds similar to a BIOS setting for the keyboard being set to OS control and not BIOS control.
--- End quote ---
I generally go through the BIOS during my initial period with any machine and I do not remember having read anything similar to that.
(It looks like the new breed of UEFI BIOS? There is an option for secure boot.)
I will look again keeping this point in mind.
But if that is the case why does this happen sometimes and not some other times? Can any OS change BIOS settings directly?
--- End quote ---
I would not expect the setting to be changed intermittently no.
The OS would not change the BIOS setting either ...... although what access Windows might have on a UEFI system I have no idea.
sling-shot:
Went through the BIOS with a fine toothed comb. There does not appear to be any option related to keyboard there.
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