On Wed, 2011-11-16 at 09:20 -0500, Matthew Garrett wrote: > The drm core currently waits 5 seconds from userspace dropping a request > for vblanks to vblanks actually being disabled. This appears to be a > workaround for broken hardware, but results in a mostly idle desktop > generating a huge number of wakeups that are entirely unnecessary but which > consume measurable amounts of power. This patchset makes the vblank timeout > per-device rather than global, making it easy for drivers to override the > behaviour without compromising other graphics hardware in the system. It > then removes the delay on Intel hardware. I've tested this successfully on > Sandybridge without any evidence of spurious or missing irqs, but I don't > know how well it works on older hardware. Feedback not only welcome, but > positively desired. Looks good to me. I'll test this on some other intel kit I've got handy. For the series: Reviewed-by: Adam Jackson <ajax at redhat.com> - ajax -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 198 bytes Desc: This is a digitally signed message part URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20111116/d60abb9d/attachment.pgp>
