Path: csiph.com!usenet.pasdenom.info!news.etla.org!nntp-feed.chiark.greenend.org.uk!ewrotcd!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Tom Stiller Newsgroups: comp.sys.mac.apps Subject: Re: No "Accept" button in OS X window when using HDMI video out Date: 18 Mar 2014 14:02:45 GMT Organization: Old Men With Beards Lines: 116 Message-ID: References: <1lip7n4.hslfc57b07yvN%dempson@actrix.gen.nz> Reply-To: clusterfux X-Trace: individual.net tRDHxOpv1O58GP19yS7rCQxinZtM/EJQsaBpNmTNLwv267TwQo Cancel-Lock: sha1:TDZmyMcJeUOMQAgwc/gmkviOnLg= User-Agent: slrn/1.0.1 (Darwin) Xref: csiph.com comp.sys.mac.apps:21598 On 2014-03-17, David Empson wrote: > Tom Stiller wrote: >> Why not? I know the Mac display is active because I look at and interact with >> it. System Preferences->Dispkays shows only the HDMI device -- no mirror >> or second display option. > > That isn't normal. Thanks for your answer. I was mistaken. I failed to check all the tabs on the Displays pane. There are, in fact, options for mirroring and extended desktop mode and I just didn't see them. > I have a MacBook Pro (Retina, 15-inch, Late 2013) running OS X 10.9.2. > > I would expect exactly the same behaviour as below on the 13-inch model, > as it is the same on every earlier Mac notebook model on which I've > connected an external display (apart from much earlier models like > iBooks which only supported mirroring). > > If I plug in an external display (in my case a bog standard AOC LCD > display with no audio capabilities) via the built-in HDMI port, then > Displays in System Preferences gains the usual "Arrangement" tab, which > shows the layout of the built-in and connected displays, and has a > "Mirror Displays" checkbox. > > If the displays are not being mirrored (extended desktop mode) then the > Displays preference pane shows a separate window on each display to > configure that display. The Arrangement tab is only visible on the > primary display. > > If the displays are mirrored then the Displays preference pane shows > overlapped but separate windows for each display (visible on both > displays due to the mirroring). The Arrangement tab will be on one of > them (not necessarily the same one as it was on when in extended desktop > mode). I did not see the overlapped window. I might be forgiven if you could see the desktop on my wife's computer. > I can toggle between mirrored and extended desktop modes by pressing > Command-F1, without having to go through System Preferences > Displays. Same here, now that I have some idea of what's happening. > If I leave the external display connected, plug in an external keyboard > and mouse and close the lid of the MBPro (clamshell mode), the external > display is now the only one available in System Preferences > Displays, > and there is no Arrangement tab. I don't have the equipemnt for that experiment. > Opening the lid again restores whichever of mirrored or extended desktop > mode was being used before. > > If you really don't see the Arrangement tab and have identical images on > both displays, with the window naming the external display, that sounds > like your MBPro thinks it is in clamshell mode but is activating the > internal display anyway (in mirroring mode). I've never seen that. > > > Testing with incoming FaceTime calls: I can't make a Facetime call now as my wife is out and would take the call on her iPhone, I'll try when she returns. > > 1. Extended display mode (built-in plus external via HDMI). > 2. Mirrored mode (built-in plus external via HDMI). > 3. Clamshell mode (external only, with no external camera or > microphone). > > In all three cases, an incoming FaceTime call had an Accept button. In > case 3, I didn't get a video preview in the window, since there was no > camera available. > > One special point to note: in case 2 (mirrored mode), by default the > system turns on Do Not Disturb (which can be accessed via the top of the > Notification Centre), and while in that state, the Mac doesn't present > any window when there is an incoming FaceTime call. (I could tell there > was an incoming call because it also rang on my iPhone.) That mey be the answer to my initial [perceived] problem. > I should also note that I have some extra drivers installed for my > club's EPSON projector via USB, which presents as alternative inputs and > outputs in System Preferences > Sound (not sure how the input works as > it isn't documented). This shouldn't be relevant because the projector > wasn't connected, its audio input and output weren't selected in System > Preferences > Sound, and even in clamshell mode, the MBPro's internal > speaker and microphone are available (and work). > >> >> You might also note that the HDMI interface is unidirectional; it >> >> wouldn't matter if the priojector did have a microphone. >> > >> > That could be (I have no idea if HDMI supports any data back, but I'll >> > take your word for it), and it would certainly be another reason for the >> > HDMI to never show an answer button. >> >> It's not just that the HDMI device doesn't show the Accept button, the >> MacBook's display, which *does* support interaction with the trackpad and >> keyboard, does not show the button either. That's either a flaw in design >> or implementation. > > If the displays are mirrored and the hypothetical reason for lack of an > Accept button is limited capabilities of the projector, then the > internal display wouldn't be able to show that button either, because > the display was being mirrored. > > I haven't yet been able to create a situation where an incoming FaceTime > call is missing the Accept button. I'll run some more tests when I know the iPhone won't be answered before the MacBook. Thanks again for your insight and help.