kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-20 19:23:40 +00:00
Code Issues Releases Packages Activity
linux/drivers/platform
History
Jorge Lopez 8e2b576caf platform/x86: hp_wmi: Fix rfkill causing soft blocked wifi 
commit 1598bfa8e1 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2022-11-16 09:58:26 +01:00
..
chrome platform/chrome: cros_ec: Notify the PM of wake events during resume 2022-10-26 12:35:40 +02:00
goldfish platform/goldfish: Convert pipe tasklet to threaded irq 2021-01-27 14:57:06 +01:00
mellanox platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters 2022-01-05 12:42:33 +01:00
mips MIPS: Loongson-3: fix compile mips cpu_hwmon as module build error. 2022-06-22 14:21:58 +02:00
olpc platform/olpc: Fix uninitialized data in debugfs write 2022-08-17 14:23:58 +02:00
surface platform/surface: aggregator_registry: Add support for Surface Laptop Go 2 2022-09-20 12:39:43 +02:00
x86 platform/x86: hp_wmi: Fix rfkill causing soft blocked wifi 2022-11-16 09:58:26 +01:00
Kconfig platform: Add Surface platform directory 2020-10-27 12:51:03 +01:00
Makefile platform: Add Surface platform directory 2020-10-27 12:51:03 +01:00