Kendrick, I didn't make any more progress. I ended up using Ubuntu 8.04 with nVidia 100.14.23. But that combination had problems because you cannot underclock the nVidia GPU with version 100.14.23 of the driver (underclocking is supported but doesn't work for the 7xxx series GPUs in that version). This causes video lockups and strange green artifacts in the video occasionally. The only fix for that was to run at 1080p resolution which is a little too much for the Apple TV. It works, but it takes a lot of memory, so the menu screens in MythTV load really slowly and Linux is always swapping stuff out to disk and back which makes it respond very slowly at times.
I've actually given up on the Apple TV. It was a fun experiment, but it doesn't quite have enough power to do what I wanted. I think with more memory it would be fine. The aplay -l shows "ATI HDMI" on my system as well. In the Apple TV, the nVidia chip does not provide the audio codec. The HDMI audio codec is on the SiI 1930 chip which drives the HDMI output. The ALSA drivers report this chip as an ATI card presumably because some ATI card uses this chipset as well. You can read more here: http://www.nvnews.net/vbulletin/showthread.php?t=132609 -Will On Jul 1, 2009, at 1:15 PM, Kendrick Vargas wrote: > > Hi Will, > > Just wondering if you tackled this anymore. Can I ask a question? Is > it > normal that the output of aplay -l shows ATI HDMI and not something > else > like nVidia or something? > -peace > > Will Koehler wrote: >> If you make any progress on HDMI audio let me know. The only way I've >> been able to get HDMI Audio to work is using the following >> combinations: >> >> - ALSA 1.0.19 or newer >> - Open-source "nv" driver >> - Ubuntu 8.04, 8.10 (and probably 9.04) >> >> Or... >> >> - ALSA 1.0.19 or newer >> - nVidia restricted driver 100.14.23 (which only runs on older >> kernels >> - for me that means Ubuntu 8.04 or prior) >> - Ubuntu 8.04 >> >> Since I need OpenGL support I had to go with the second combination >> (the open source nv driver doesn't do 3D / OpenGL) >> >> There is more information on this thread: >> >> http://www.nvnews.net/vbulletin/showthread.php?p=1996245 >> >> (probably more information that you wanted to know) >> >> >> On May 14, 2009, at 12:15 PM, sean kremlen wrote: >> >>> Well, thanks all -- and especially thanks to the Ubuntu devs.... >>> because xubuntu 9.04 fixed the issue on HDMI. sound isn't working >>> yet but i'll tackle that later, and in a different thread... >>> >>> >> >> >>> > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/atv-bootloader?hl=en -~----------~----~----~----~------~----~------~--~---
