----- Original Message ----- > From: "Michel Dänzer" <[email protected]> > To: "Qiang Yu" <[email protected]> > Cc: [email protected], "David Airlie" <[email protected]> > Sent: Tuesday, 31 January, 2017 5:04:17 PM > Subject: Re: [PATCH xserver] present: disable page flip only when a slave > crtc is active > > On 26/01/17 07:13 PM, Qiang Yu wrote: > > > > @@ -145,7 +157,7 @@ present_check_flip(RRCrtcPtr crtc, > > return FALSE; > > > > /* Fail to flip if we have slave outputs */ > > - if (screen->output_slaves) > > + if (screen->output_slaves && > > present_check_output_slaves_active(screen)) > > return FALSE; > > > > /* Make sure the window hasn't been redirected with Composite */ > > > > Actually, I'm not sure why we need to check for slave outputs here at > all. Dave, did you run into an actual problem without the check, or was > it just a theoretical concern? The commit log says:
You don't get an output on USB without the fix. Dave. _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
