Hi stable kernel team! According to Greg there is a patch pending for fixing an issue in the synaptics driver (see below for details).
Yes, please include this patch into the next stable kernel release! Me and quite a number of other users are suffering from the problem this patch does address and the problems are over and over reported and discussed e.g. on the linux-input and x.org list (and others maybe too). Thank you! Cheers nicole Am 10.11.2014 um 03:15 schrieb [email protected]: > > This is a note to let you know that I've just added the patch titled > > Input: synaptics - gate forcepad support by DMI check > > to the 3.17-stable tree which can be found at: > > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary > > The filename of the patch is: > input-synaptics-gate-forcepad-support-by-dmi-check.patch > and it can be found in the queue-3.17 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <[email protected]> know about it. > > > From aa972409951e0675e07918620427517cad5090e0 Mon Sep 17 00:00:00 2001 > From: Dmitry Torokhov <[email protected]> > Date: Tue, 2 Sep 2014 09:49:18 -0700 > Subject: Input: synaptics - gate forcepad support by DMI check > > From: Dmitry Torokhov <[email protected]> > > commit aa972409951e0675e07918620427517cad5090e0 upstream. > > Unfortunately, ForcePad capability is not actually exported over PS/2, so > we have to resort to DMI checks. > > Reported-by: Nicole Faerber <[email protected]> > Signed-off-by: Dmitry Torokhov <[email protected]> > Signed-off-by: Greg Kroah-Hartman <[email protected]> > > --- > drivers/input/mouse/synaptics.c | 22 +++++++++++++++++++++- > drivers/input/mouse/synaptics.h | 8 ++------ > 2 files changed, 23 insertions(+), 7 deletions(-) > > --- a/drivers/input/mouse/synaptics.c > +++ b/drivers/input/mouse/synaptics.c > @@ -618,6 +618,8 @@ static void synaptics_parse_agm(const un > priv->agm_pending = true; > } > > +static bool is_forcepad; > + > static int synaptics_parse_hw_state(const unsigned char buf[], > struct synaptics_data *priv, > struct synaptics_hw_state *hw) > @@ -647,7 +649,7 @@ static int synaptics_parse_hw_state(cons > hw->left = (buf[0] & 0x01) ? 1 : 0; > hw->right = (buf[0] & 0x02) ? 1 : 0; > > - if (SYN_CAP_FORCEPAD(priv->ext_cap_0c)) { > + if (is_forcepad) { > /* > * ForcePads, like Clickpads, use middle button > * bits to report primary button clicks. > @@ -1678,11 +1680,29 @@ static const struct dmi_system_id __init > { } > }; > > +static const struct dmi_system_id forcepad_dmi_table[] __initconst = { > +#if defined(CONFIG_DMI) && defined(CONFIG_X86) > + { > + .matches = { > + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), > + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook Folio 1040 > G1"), > + }, > + }, > +#endif > + { } > +}; > + > void __init synaptics_module_init(void) > { > impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); > broken_olpc_ec = dmi_check_system(olpc_dmi_table); > cr48_profile_sensor = dmi_check_system(cr48_dmi_table); > + > + /* > + * Unfortunately ForcePad capability is not exported over PS/2, > + * so we have to resort to checking DMI. > + */ > + is_forcepad = dmi_check_system(forcepad_dmi_table); > } > > static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) > --- a/drivers/input/mouse/synaptics.h > +++ b/drivers/input/mouse/synaptics.h > @@ -77,12 +77,9 @@ > * for noise. > * 2 0x08 image sensor image sensor tracks 5 fingers, but only > * reports 2. > + * 2 0x01 uniform clickpad whole clickpad moves instead of being > + * hinged at the top. > * 2 0x20 report min query 0x0f gives min coord reported > - * 2 0x80 forcepad forcepad is a variant of clickpad that > - * does not have physical buttons but > rather > - * uses pressure above certain threshold to > - * report primary clicks. Forcepads also > have > - * clickpad bit set. > */ > #define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & 0x100000) /* 1-button > ClickPad */ > #define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & 0x000100) /* 2-button > ClickPad */ > @@ -91,7 +88,6 @@ > #define SYN_CAP_ADV_GESTURE(ex0c) ((ex0c) & 0x080000) > #define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400) > #define SYN_CAP_IMAGE_SENSOR(ex0c) ((ex0c) & 0x000800) > -#define SYN_CAP_FORCEPAD(ex0c) ((ex0c) & 0x008000) > > /* synaptics modes query bits */ > #define SYN_MODE_ABSOLUTE(m) ((m) & (1 << 7)) > > > Patches currently in stable-queue which might be from > [email protected] are > > queue-3.17/input-i8042-quirks-for-fujitsu-lifebook-a544-and-lifebook-ah544.patch > queue-3.17/input-alps-fix-v4-button-press-recognition.patch > queue-3.17/input-i8042-add-noloop-quirk-for-asus-x750ln.patch > queue-3.17/input-synaptics-gate-forcepad-support-by-dmi-check.patch > -- kernel concepts GmbH Sieghuetter Hauptweg 48 D-57072 Siegen http://www.kernelconcepts.de/ -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
