On Fri, Jun 17, 2016 at 06:12:16PM +0800, Daniel J Blueman wrote: > On 17 June 2016 at 17:18, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > > On Fri, Jun 17, 2016 at 05:08:55PM +0800, Daniel J Blueman wrote: > >> Hi all! > >> > >> When unlocking from lightdm, the mouse cursor isn't visible until > >> switching VTs. This doesn't occur when using UXA rendering mode > >> though, and affects a *lot* of people [1]. It occurs with a range of > >> kernels including 4.6.2. > >> > >> I'm using xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 > >> (current in Ubuntu 16.04 LTS). > >> > >> How can I approach debugging it? > > > > Start with a kernel from about 3.19. The trigger was introduced by > > xorg-server-1.18.3 which double applied a SETCURSOR ioctl. That should > > have been a noop... > > Thanks for replying Chris! > > I find the issue occurs in kernels 4.6.2, 4.4.13 and 4.3.6, but does > not in 4.2.8 or 4.1.26, however I also see that locking the screen > doesn't blank it, so there is behavioural difference also. > > This may result in a kernel bisect tripping on a large merge; I can > take a look if you think the odds are ok? I would look at -nightly first and hope that is has been fixed (and that the fix is trivial). -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
