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[ Upstream commit 67fbe02a5cebc3c653610f12e3c0424e58450153 ]
Recently userspace has started making more use of SW_TABLET_MODE
(when an input-dev reports this).
Specifically recent GNOME3 versions will:
1. When SW_TABLET_MODE is reported and is reporting 0:
1.1 Disable accelerometer-based screen auto-rotation
1.2 Disable automatically showing the on-screen keyboard when a
text-input field is focussed
2. When SW_TABLET_MODE is reported and is reporting 1:
2.1 Ignore input-events from the builtin keyboard and touchpad
(this is for 360° hinges style 2-in-1s where the keyboard and
touchpads are accessible on the back of the tablet when folded
into tablet-mode)
This means that claiming to support SW_TABLET_MODE when it does not
actually work / reports correct values has bad side-effects.
The check in the hp-wmi code which is used to decide if the input-dev
should claim SW_TABLET_MODE support, only checks if the
HPWMI_HARDWARE_QUERY is supported. It does *not* check if the hardware
actually is capable of reporting SW_TABLET_MODE.
This leads to the hp-wmi input-dev claiming SW_TABLET_MODE support,
while in reality it will always report 0 as SW_TABLET_MODE value.
This has been seen on a "HP ENVY x360 Convertible 15-cp0xxx" and
this likely is the case on a whole lot of other HP models.
This problem causes both auto-rotation and on-screen keyboard
support to not work on affected x360 models.
There is no easy fix for this, but since userspace expects
SW_TABLET_MODE reporting to be reliable when advertised it is
better to not claim/report SW_TABLET_MODE support at all, then
to claim to support it while it does not work.
To avoid the mentioned problems, add a new enable_tablet_mode_sw
module-parameter which defaults to false.
Note I've made this an int using the standard -1=auto, 0=off, 1=on
triplett, with the hope that in the future we can come up with a
better way to detect SW_TABLET_MODE support. ATM the default
auto option just does the same as off.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1918255
Cc: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mark Gross <mgross@linux.intel.com>
Link: https://lore.kernel.org/r/20210120124941.73409-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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| .. | ||
| intel_speed_select_if | ||
| acer-wireless.c | ||
| acer-wmi.c | ||
| acerhdf.c | ||
| alienware-wmi.c | ||
| amilo-rfkill.c | ||
| apple-gmux.c | ||
| asus-laptop.c | ||
| asus-nb-wmi.c | ||
| asus-wireless.c | ||
| asus-wmi.c | ||
| asus-wmi.h | ||
| classmate-laptop.c | ||
| compal-laptop.c | ||
| dcdbas.c | ||
| dcdbas.h | ||
| dell_rbu.c | ||
| dell-laptop.c | ||
| dell-rbtn.c | ||
| dell-rbtn.h | ||
| dell-smbios-base.c | ||
| dell-smbios-smm.c | ||
| dell-smbios-wmi.c | ||
| dell-smbios.h | ||
| dell-smo8800.c | ||
| dell-wmi-aio.c | ||
| dell-wmi-descriptor.c | ||
| dell-wmi-descriptor.h | ||
| dell-wmi-led.c | ||
| dell-wmi.c | ||
| eeepc-laptop.c | ||
| eeepc-wmi.c | ||
| fujitsu-laptop.c | ||
| fujitsu-tablet.c | ||
| gpd-pocket-fan.c | ||
| hdaps.c | ||
| hp_accel.c | ||
| hp-wireless.c | ||
| hp-wmi.c | ||
| huawei-wmi.c | ||
| i2c-multi-instantiate.c | ||
| ibm_rtl.c | ||
| ideapad-laptop.c | ||
| intel_atomisp2_led.c | ||
| intel_atomisp2_pm.c | ||
| intel_bxtwc_tmu.c | ||
| intel_cht_int33fe_common.c | ||
| intel_cht_int33fe_common.h | ||
| intel_cht_int33fe_microb.c | ||
| intel_cht_int33fe_typec.c | ||
| intel_chtdc_ti_pwrbtn.c | ||
| intel_int0002_vgpio.c | ||
| intel_ips.c | ||
| intel_ips.h | ||
| intel_menlow.c | ||
| intel_mid_powerbtn.c | ||
| intel_mid_thermal.c | ||
| intel_mrfld_pwrbtn.c | ||
| intel_oaktrail.c | ||
| intel_pmc_core_pltdrv.c | ||
| intel_pmc_core.c | ||
| intel_pmc_core.h | ||
| intel_punit_ipc.c | ||
| intel_scu_ipc.c | ||
| intel_scu_ipcutil.c | ||
| intel_scu_pcidrv.c | ||
| intel_scu_pltdrv.c | ||
| intel_telemetry_core.c | ||
| intel_telemetry_debugfs.c | ||
| intel_telemetry_pltdrv.c | ||
| intel_turbo_max_3.c | ||
| intel-hid.c | ||
| intel-rst.c | ||
| intel-smartconnect.c | ||
| intel-uncore-frequency.c | ||
| intel-vbtn.c | ||
| intel-wmi-sbl-fw-update.c | ||
| intel-wmi-thunderbolt.c | ||
| Kconfig | ||
| lg-laptop.c | ||
| Makefile | ||
| mlx-platform.c | ||
| msi-laptop.c | ||
| msi-wmi.c | ||
| mxm-wmi.c | ||
| panasonic-laptop.c | ||
| pcengines-apuv2.c | ||
| peaq-wmi.c | ||
| pmc_atom.c | ||
| samsung-laptop.c | ||
| samsung-q10.c | ||
| sony-laptop.c | ||
| surface3_button.c | ||
| surface3_power.c | ||
| surface3-wmi.c | ||
| surfacepro3_button.c | ||
| system76_acpi.c | ||
| tc1100-wmi.c | ||
| thinkpad_acpi.c | ||
| topstar-laptop.c | ||
| toshiba_acpi.c | ||
| toshiba_bluetooth.c | ||
| toshiba_haps.c | ||
| toshiba-wmi.c | ||
| touchscreen_dmi.c | ||
| wmi-bmof.c | ||
| wmi.c | ||
| xiaomi-wmi.c | ||
| xo1-rfkill.c | ||
| xo15-ebook.c | ||