Date: Sat, 10 Jun 2017 13:07:49 +0300 From: Vladimir Kondratyev <vladimir@kondratyev.su> To: Jonathan Anderson <jonathan@FreeBSD.org>, freebsd-current@freebsd.org Subject: Re: CFT: EVDEV support in psm(4) driver Message-ID: <d28c9da7-6403-1202-b3f5-a3ddfeda5e30@kondratyev.su> In-Reply-To: <03831fcc-5744-21da-0756-d28bf256c203@FreeBSD.org> References: <5fa9225de944d6cdac0b7e5749b452a9@kondratyev.su> <03831fcc-5744-21da-0756-d28bf256c203@FreeBSD.org>
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On 09.06.2017 15:57, Jonathan Anderson wrote: > Hi Vladimir, > > Thanks very much... I've been using your patch for awhile with my > Synaptics touchpad and it's lovely to have two-finger scrolling that > works properly! I did need to massage the patch to make it apply on > drm-next: > https://github.com/trombonehero/freebsd/commit/3d74a33a1bc709d289216cb946744afecb70f6b5 > > The patch is commited to CURRENT already so you don`t need apply extra patches anymore. Part of initial patch that I can find under your link has not been committed as it can trigger deadlock on KDB entering. > Sometimes I experience dropped touchpad events, particularly when the > system is busy and my wi-fi is being reconfigured. Is there anything I > can do to help debug this? Are you observing SYN_DROPPED events in evemu-record output? If so run it under "nice -n -20" If SYN_DROPPED still persists, add debug.psm.loglevel=5 to /boot/loader.conf, reboot and send me content of /var/log/messages. Only "dropped touch" part of log is needed. Event dropping occurs when kernel writes events faster than user can read, so usually it is a user-land problem.
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