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| author | Jorge Lopez <[email protected]> | 2022-10-28 15:55:27 +0000 |
|---|---|---|
| committer | Hans de Goede <[email protected]> | 2022-11-07 11:33:49 +0000 |
| commit | 1598bfa8e1faa932de42e1ee7628a1c4c4263f0a (patch) | |
| tree | ce013a8b23a5da1d514d6317cdc308b204a5a356 /drivers/platform/x86/intel/pmt/class.c | |
| parent | platform/x86: touchscreen_dmi: Add info for the RCA Cambio W101 v2 2-in-1 (diff) | |
| download | kernel-1598bfa8e1faa932de42e1ee7628a1c4c4263f0a.tar.gz kernel-1598bfa8e1faa932de42e1ee7628a1c4c4263f0a.zip | |
platform/x86: hp_wmi: Fix rfkill causing soft blocked wifi
After upgrading BIOS to U82 01.02.01 Rev.A, the console is flooded
strange char "^@" which printed out every second and makes login
nearly impossible. Also the below messages were shown both in console
and journal/dmesg every second:
usb 1-3: Device not responding to setup address.
usb 1-3: device not accepting address 4, error -71
usb 1-3: device descriptor read/all, error -71
usb usb1-port3: unable to enumerate USB device
Wifi is soft blocked by checking rfkill. When unblocked manually,
after few seconds it would be soft blocked again. So I was suspecting
something triggered rfkill to soft block wifi. At the end it was
fixed by removing hp_wmi module.
The root cause is the way hp-wmi driver handles command 1B on
post-2009 BIOS. In pre-2009 BIOS, command 1Bh return 0x4 to indicate
that BIOS no longer controls the power for the wireless devices.
Signed-off-by: Jorge Lopez <[email protected]>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216468
Reviewed-by: Mario Limonciello <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: [email protected]
Reviewed-by: Hans de Goede <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Diffstat (limited to 'drivers/platform/x86/intel/pmt/class.c')
0 files changed, 0 insertions, 0 deletions