summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorHans de Goede <hdegoede@redhat.com>2021-01-14 15:34:32 +0100
committerHans de Goede <hdegoede@redhat.com>2021-01-18 19:26:44 +0100
commitbbffaa981940acdfc15ba7b7621a497cd56fa3a4 (patch)
tree03ec1f32b87c43620236319253f74834b139acda
parente5da18d3e67dbc326205fb179f0e5085372537dd (diff)
platform/x86: intel-vbtn: Drop HP Stream x360 Convertible PC 11 from allow-list
THe HP Stream x360 Convertible PC 11 DSDT has the following VGBS function: Method (VGBS, 0, Serialized) { If ((^^PCI0.LPCB.EC0.ROLS == Zero)) { VBDS = Zero } Else { VBDS = Zero } Return (VBDS) /* \_SB_.VGBI.VBDS */ } Which is obviously wrong, because it always returns 0 independent of the 2-in-1 being in laptop or tablet mode. This causes the intel-vbtn driver to initially report SW_TABLET_MODE = 1 to userspace, which is known to cause problems when the 2-in-1 is actually in laptop mode. During earlier testing this turned out to not be a problem because the 2-in-1 would do a Notify(..., 0xCC) or Notify(..., 0xCD) soon after the intel-vbtn driver loaded, correcting the SW_TABLET_MODE state. Further testing however has shown that this Notify() soon after the intel-vbtn driver loads, does not always happen. When the Notify does not happen, then intel-vbtn reports SW_TABLET_MODE = 1 resulting in a non-working touchpad. IOW the tablet-mode reporting is not reliable on this device, so it should be dropped from the allow-list, fixing the touchpad sometimes not working. Fixes: 8169bd3e6e19 ("platform/x86: intel-vbtn: Switch to an allow-list for SW_TABLET_MODE reporting") Link: https://lore.kernel.org/r/20210114143432.31750-1-hdegoede@redhat.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
-rw-r--r--drivers/platform/x86/intel-vbtn.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
index 9bbdb26d4305..30a9062d2b4b 100644
--- a/drivers/platform/x86/intel-vbtn.c
+++ b/drivers/platform/x86/intel-vbtn.c
@@ -207,12 +207,6 @@ static const struct dmi_system_id dmi_switches_allow_list[] = {
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Stream x360 Convertible PC 11"),
- },
- },
- {
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion 13 x360 PC"),
},
},