From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750871Ab2EDEUL (ORCPT ); Fri, 4 May 2012 00:20:11 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:40360 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750739Ab2EDEUK (ORCPT ); Fri, 4 May 2012 00:20:10 -0400 Message-ID: <4FA358ED.1080705@gmail.com> Date: Fri, 04 May 2012 14:19:57 +1000 From: Francois Rigaut User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1 MIME-Version: 1.0 To: Greg KH CC: Nico Schottelius , LKML Subject: Re: Linux Support for Thunderbolt using Apple Monitor References: <20120419163800.GB13977@schottelius.org> <20120502163629.GE928@schottelius.org> <20120502202509.GA26798@kroah.com> <20120503065003.GB13386@schottelius.org> <20120503153547.GD20334@kroah.com> <20120503233858.GA13453@kroah.com> In-Reply-To: <20120503233858.GA13453@kroah.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Greg, Nico, Thanks Greg for giving us some attention. I went ahead and collected a number of information that could be useful to track down our hotplug issue. 1) Coldplug: Booting with the thunderbolt display attached. This works. Several devices (additional to what I get without the display attached) are listed. Here is the relevant info: http://maumae.net/thunderbolt/coldplug_efi/log -> kernel.log http://maumae.net/thunderbolt/coldplug_efi/lspci -> lspci and lspci -vv http://maumae.net/thunderbolt/coldplug_efi/lsmod http://maumae.net/thunderbolt/coldplug_efi/config_excerpt.txt full config @ http://maumae.net/thunderbolt/config.gz http://maumae.net/thunderbolt/coldplug_efi/disconnect -> message when disconnecting (pciehp loaded just before) note that an attempt to reconnect leads to the same issue as described before, i.e. nothing happens. 2) Booting with the display/device not plugged, just for reference: http://maumae.net/thunderbolt/notplugged_efi/log http://maumae.net/thunderbolt/notplugged_efi/lsmod http://maumae.net/thunderbolt/notplugged_efi/misc http://maumae.net/thunderbolt/notplugged_efi/lspci 3) Again, I have tried to load pciehp and acpiphp with both EFI boot and BIOS emulation boot: - pciehp loads ok but as I said earlier, no message whatsoever in everything.log when I try to connect the thunderbolt display - acpiphp: I was wrong yesterday. In fact, trying to load acpiphp gives me a message: [root@poliahu thunderbolt]# modprobe acpiphp ERROR: could not insert 'acpiphp': No such device Not sure what to make of it. I have tried to also load acpiphp after a coldplug boot; same error message. I've read somewhere that this error message may mean that the h/w doesn't support hotplugging. However, I think the coldplug lspci -vv above tells us the h/w does support pcie hotplug: all the pci bridges appear to have D3hot+ capability (and it certainly does, as this works under osx on the same machine). Any suggestion are welcome! Thanks. Francois