Date: Mon, 20 May 2013 09:46:51 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-amd64@freebsd.org, Anton Shterenlikht <mexas@bristol.ac.uk> Cc: FreeBSD-gnats-submit@freebsd.org Subject: Re: amd64/178671: snd_hda stops working as soon as X starts Message-ID: <201305200946.51199.jhb@freebsd.org> In-Reply-To: <201305151935.r4FJZ1JB034984@mech-aslap239.men.bris.ac.uk> References: <201305151935.r4FJZ1JB034984@mech-aslap239.men.bris.ac.uk>
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On Wednesday, May 15, 2013 3:35:01 pm Anton Shterenlikht wrote: > > >Number: 178671 > >Category: amd64 > >Synopsis: snd_hda stops working as soon as X starts > >Confidential: no > >Severity: non-critical > >Priority: low > >Responsible: freebsd-amd64 > >State: open > >Quarter: > >Keywords: > >Date-Required: > >Class: sw-bug > >Submitter-Id: current-users > >Arrival-Date: Wed May 15 19:40:02 UTC 2013 > >Closed-Date: > >Last-Modified: > >Originator: Anton Shterenlikht > >Release: FreeBSD 10.0-CURRENT amd64 > >Organization: > University of Bristol > >Environment: > System: FreeBSD mech-aslap239.men.bris.ac.uk 10.0-CURRENT FreeBSD 10.0- CURRENT #33 r250633: Tue May 14 20:11:05 BST 2013 root@mech- aslap239.men.bris.ac.uk:/usr/obj/usr/src/sys/BUZI amd64 > > > > >Description: > > This is HP Compaq 6715s laptop. > The sound card is: > > hdac0@pci0:0:20:2: class=0x040300 card=0x30c2103c chip=0x43831002 rev=0x00 hdr=0x00 > vendor = 'Advanced Micro Devices [AMD] nee ATI' > device = 'SBx00 Azalia (Intel HDA)' > class = multimedia > subclass = HDA > > I have in the kernel: > > device sound # Generic sound driver (required) > device snd_hda # Intel High Definition Audio > > In dmesg: > > hdac0: <ATI SB600 HDA Controller> mem 0xc0000000-0xc0003fff irq 16 at device 20.2 on pci0 > > Before X starts I can get sound via /dev/dsp, > or play CDs with > dd if=/dev/cd0 of=/dev/dspcd bs=2352 > > HOwever, as soon I start X, e.g. with xdm, > or simply "X -config /root/xorg.conf.new -retro" > I cannot get any sound anymore until a reboot. > > On the console I see lots of messages: > > hdac0: Unexpected unsolicited response from address 0: 00000040 > hdac0: Unexpected unsolicited response from address 0: 00400104 > hdac0: Unexpected unsolicited response from address 0: 00000001 > hdac0: Unexpected unsolicited response from address 0: 0000000f > hdac0: Unexpected unsolicited response from address 0: 410710f0 > hdac0: Unexpected unsolicited response from address 0: 00000010 > hdac0: Unexpected unsolicited response from address 0: 00000040 > hdac0: Unexpected unsolicited response from address 0: 00400083 > hdac0: Unexpected unsolicited response from address 0: 00000000 > hdac0: Unexpected unsolicited response from address 0: 04a12020 > hdac0: Unexpected unsolicited response from address 0: 00001727 > hdac0: Unexpected unsolicited response from address 0: 00000020 > hdac0: Unexpected unsolicited response from address 0: 00400187 > hdac0: Unexpected unsolicited response from address 0: 00000002 > hdac0: Unexpected unsolicited response from address 0: 00000e03 > hdac0: Unexpected unsolicited response from address 0: 0181302e > hdac0: Unexpected unsolicited response from address 0: 00001737 > hdac0: Unexpected unsolicited response from address 0: 00000020 > hdac0: Unexpected unsolicited response from address 0: 00400301 > hdac0: Unexpected unsolicited response from address 0: 00000001 > hdac0: Unexpected unsolicited response from address 0: 00000002 > hdac0: Unexpected unsolicited response from address 0: 4145f0f0 > hdac0: Unexpected unsolicited response from address 0: 00000010 > hdac0: Unexpected unsolicited response from address 0: 00000040 This sounds like the display driver is DMA'ing to the wrong place or writing to the wrong registers. Can you check the output of pciconf -lcb to make sure there are no collisions between BARs? Also, which GPU hardware/driver is in your laptop? -- John Baldwin
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