Bug 1075190
| Summary: | [ThinkPad T440s] Disabling touchpad also disables hardware clicking | ||||||
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| Product: | Red Hat Enterprise Linux 7 | Reporter: | Michal Domonkos <mdomonko> | ||||
| Component: | gnome-settings-daemon | Assignee: | Rui Matos <rmatos> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Desktop QE <desktop-qa-list> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 7.0 | CC: | acc-bugz-redhat, mboisver, peter.hutterer, rhaggard, tpelka, vbenes | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | gnome-settings-daemon-3.14.4-7.el7 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2015-11-19 08:24:58 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | 1093050, 1093449 | ||||||
| Bug Blocks: | |||||||
| Attachments: |
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We usually only show the touchpad disable switch when there is another input device available (whether a touchscreen or a mouse). In this case, as the trackpoint is unusable without the touchpad, we should probably not even allow the touchpad to be disabled. I don't really see a way to disable the touchpad but make its buttons still work though. Peter will know better. I'd like to request a 7.0.z release to make this work before 7.1. Thanks! Bastien: the synaptics patches now allow for physical clicks if the touchpad is set to the TOUCHPAD_OFF mode (in the synaptics-specific property). See http://cgit.freedesktop.org/xorg/driver/xf86-input-synaptics/commit/?id=dc5474964d4ec73b5c324961026e1037bb344946 The problem is that g-s-d disables the device altogether and that way the driver doesn't get any events. The best solution to that would be to set the "Synaptics Off" property instead of calling set_device_enabled(). You'd get wakeups because the driver still gets and processes events, just discards them, so if you want to avoid that you could do this conditional on the "Synaptics Secondary Soft Button Areas" property being present and filled with non-zero values. That way all other laptops aren't affected by this. This is actually gnome-settings-daemon bug. The patch to fix this issue has been attached upstream for a review. Necessary xorg-x11-drv-synaptics changes was also pushed as a part of Bug 1093050. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2015-2157.html |
Created attachment 873212 [details] dmesg Description of problem: Since the mouse buttons are implemented in the touchpad itself (by pressing it down) in this model of ThinkPad, once I disable the touchpad in GNOME Control Center the press-down feature of the touchpad gets disabled too. Without that feature I cannot use the trackpoint because there's no way to emulate mouse clicks. On the other hand, if I leave the touchpad enabled and press it down while using the trackpoint, the mouse cursor moves a little due to the touchpad registering a movement, which is also unacceptable in order to use the trackpoint. It might as well be a hardware limitation so feel free to close this bug in such case. Otherwise, I can imagine having a separate option to enable/disable press-down in GNOME Control Center.