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? Dan -- Daniel J Blueman _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
