diff options
Diffstat (limited to 'freed-ora/tags/f27/4.15.9-300.fc27.gnu/Input-synaptics-pin-3-touches-when-the-firmware-repo.patch')
| -rw-r--r-- | freed-ora/tags/f27/4.15.9-300.fc27.gnu/Input-synaptics-pin-3-touches-when-the-firmware-repo.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/freed-ora/tags/f27/4.15.9-300.fc27.gnu/Input-synaptics-pin-3-touches-when-the-firmware-repo.patch b/freed-ora/tags/f27/4.15.9-300.fc27.gnu/Input-synaptics-pin-3-touches-when-the-firmware-repo.patch new file mode 100644 index 000000000..e697968c7 --- /dev/null +++ b/freed-ora/tags/f27/4.15.9-300.fc27.gnu/Input-synaptics-pin-3-touches-when-the-firmware-repo.patch @@ -0,0 +1,47 @@ +From: Benjamin Tissoires <benjamin.tissoires@redhat.com> +Date: Thu, 16 Apr 2015 13:01:46 -0400 +Subject: [PATCH] Input - synaptics: pin 3 touches when the firmware reports 3 + fingers + +Synaptics PS/2 touchpad can send only 2 touches in a report. They can +detect 4 or 5 and this information is valuable. + +In commit 63c4fda (Input: synaptics - allocate 3 slots to keep stability +in image sensors), we allocate 3 slots, but we still continue to report +the 2 available fingers. That means that the client sees 2 used slots while +there is a total of 3 fingers advertised by BTN_TOOL_TRIPLETAP. + +For old kernels this is not a problem because max_slots was 2 and libinput/ +xorg-synaptics knew how to deal with that. Now that max_slot is 3, the +clients ignore BTN_TOOL_TRIPLETAP and count the actual used slots (so 2). +It then gets confused when receiving the BTN_TOOL_TRIPLETAP and DOUBLETAP +information, and goes wild. + +We can pin the 3 slots until we get a total number of fingers below 2. + +Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1212230 + +Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> +--- + drivers/input/mouse/synaptics.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c +index 3a32caf06bf1..58102970f94f 100644 +--- a/drivers/input/mouse/synaptics.c ++++ b/drivers/input/mouse/synaptics.c +@@ -940,6 +940,14 @@ static void synaptics_report_mt_data(struct psmouse *psmouse, + input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z); + } + ++ /* keep (slot count <= num_fingers) by pinning all slots */ ++ if (num_fingers >= 3) { ++ for (i = 0; i < 3; i++) { ++ input_mt_slot(dev, i); ++ input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); ++ } ++ } ++ + input_mt_drop_unused(dev); + + /* Don't use active slot count to generate BTN_TOOL events. */ |
