diff options
| author | Jorge Lopez <jorge.lopez2@hp.com> | 2022-10-28 10:55:27 -0500 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-11-07 12:33:49 +0100 |
| commit | 1598bfa8e1faa932de42e1ee7628a1c4c4263f0a (patch) | |
| tree | ce013a8b23a5da1d514d6317cdc308b204a5a356 /drivers/platform/x86/intel/pmt/class.c | |
| parent | 0df044b34bf33e7e35c32b3bf6747fde6279c162 (diff) | |
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 <jorge.lopez2@hp.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216468
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20221028155527.7724-1-jorge.lopez2@hp.com
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/intel/pmt/class.c')
0 files changed, 0 insertions, 0 deletions