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  #1  
Old 23rd March 2015, 12:38 PM
wintonian Offline
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Kernel 3.19.x & wireless keyboard during startup

With reference to this thread from getting the module for the Logitech K750 into initramfs originally.

It is the same problem really, i.e. keyboard works in Grub and at login, but i cannot enter password at cryptsetyp although a wired USB keyboard works fine.

Code:
user-001@elrond ~$ lsinitrd /boot/initramfs-$(uname -r).img | grep logitech
-rw-r--r--   1 root     root         6996 Mar 18 05:05 usr/lib/modules/3.19.1-201.fc21.x86_64/kernel/drivers/hid/hid-logitech-dj.ko.xz
user-001@elrond ~$
So the module loads, it just doesn't seem to work, and I have issued "dracut -f" just for fun but the keyboard still refuses to work at the cryptsetup prompt and the unifying receiver was plugged in during the kernel update.

Also this still seems to be the case in 3.19.2 kernel.

I suspect somethings broken in the kernel - perhaps?

Last edited by wintonian; 23rd March 2015 at 12:49 PM. Reason: use result from correct kernel
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  #2  
Old 24th March 2015, 03:52 PM
Boricua Offline
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Re: Kernel 3.19.x & wireless keyboard during startup

Hi,
For what is worth, I am seeing the same experience. I tried two 3.19 kernels (the one just released and the other from the testing repo), and neither allows me to type the password at cryptsetup. This is also a wireless Logithech USB keyboard which is otherwise working fine with Fedora 21 and a 3.18 kernel.
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  #3  
Old 24th March 2015, 03:55 PM
wintonian Offline
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Re: Kernel 3.19.x & wireless keyboard during startup

Fine I'll open a Bugzilla in a bit then.

Edit:

Perhaps I should of though about looking there first.

#1204392

Last edited by wintonian; 24th March 2015 at 04:12 PM.
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  #4  
Old 29th March 2015, 07:34 PM
wintonian Offline
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Re: Kernel 3.19.x & wireless keyboard during startup

I'm no expert on the kernel, quite the opposite, but I wonder if this is where it broke?

I see there have been further changes in 3.20 (AKA 4.0).

Has anyone tried to see if this is fixed in F22 - which uses 4.0.0?
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  #5  
Old 30th March 2015, 07:53 PM
wintonian Offline
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Re: Kernel 3.19.x & wireless keyboard during startup

I shall mark this one as solved, not because a fix has been issued but there is a 'fix it yourself' (as opposed to a workaround) type solution.

From the bug report:
Quote:
This happens whenever the kernel modules needed for the Logitech receivers change. It happened with kernel 3.2 (bug #786303), and now it's happened again with 3.19, which now requires the hid-logitech-hidpp module.

Thomas provided the workaround in comment 4 above, but the fix requires a patch to the dracut package to /usr/lib/dracut/modules.d/90kernel-modules/module-setup.sh to add hid-logitech-hidpp after hid-logitech-dj.
So the relevant part of module-setup.sh should look like:

Code:
        instmods yenta_socket scsi_dh_rdac scsi_dh_emc \
            atkbd i8042 usbhid hid-apple hid-sunplus hid-cherry hid-logitech \
            hid-logitech-dj hid-logitech-hidpp hid-microsoft firewire-ohci \
            pcmcia usb_storage nvme hid-hyperv hv-vmbus \
            sdhci_acpi
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  #6  
Old 30th March 2015, 10:41 PM
lsatenstein Online
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Re: Kernel 3.19.x & wireless keyboard during startup

what does localectl show? It could see your keyboard as being different from what previous kernel saw it.
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  #7  
Old 30th March 2015, 10:51 PM
wintonian Offline
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Re: Kernel 3.19.x & wireless keyboard during startup

Quote:
user-001@elrond ~$ localectl
System Locale: LANG=en_GB.UTF-8
VC Keymap: uk
X11 Layout: gb
I'm not sure what you mean??

The problem was that the kernel driver has been changed from 'hid-logitech-dj' to 'hid-logitech-hidpp' for the unifying receiver devices but this hasn't been reflected in dracut/ initramfs.

At least that is my very rudimentary understanding.

This I suspect is the kernel change responsible:

Quote:
Benjamin Tissoires (18):
HID: fix merge from wacom into the HID tree
HID: core: do not scan reports if the group is already set
HID: logitech-dj: rely on hid groups to separate receivers from dj devices
HID: logitech-dj: merge header file into the source
HID: Introduce hidpp, a module to handle Logitech hid++ devices
HID: logitech: move dj devices to the HID++ module

HID: logitech-dj: allow transfer of HID++ reports from/to the correct dj device
HID: logitech: allow the DJ device to request the unifying name
HID: logitech-dj: enable notifications on connect/disconnect
HID: logitech-hidpp: late bind the input device on wireless connection
HID: logitech-hidpp: Add Wireless Touchpad T650 support
HID: logitech-hidpp: add support of the first Logitech Wireless Touchpad
HID: logitech-hidpp: support combo keyboard touchpad TK820
HID: usbhid: prevent unwanted events to be sent when re-opening the device
HID: logitech-hidpp: fix negated returns
HID: logitech-hidpp: 2 fixes in hidpp_root_get_protocol_version()
HID: wacom: re-add accidentally dropped Lenovo PID
HID: wacom: fix freeze on open when autosuspend is on
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