Bug#628080: xserver-xorg-video-radeon: Low performance after a period of inactivity

[Stephen Kitt <steve@sk2.org>]

Hi Michel,

On Thu, Mar 22, 2012 at 08:08:57AM +0100, Michel Dänzer wrote:
> On Don, 2012-03-22 at 00:05 +0100, Stephen Kitt wrote: 
> > So I wondered whether this might be somehow related to the
> > snd-hda-intel driver attempting to initialize the HDMI audio
> > output... I blacklisted the snd-hda-intel driver, and hey presto, no
> > more errors.
> 
> Does enabling HDMI audio with radeon.audio=1 prevent the problem as
> well?

Unfortunately not:

[...]
[    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.2.0-2-686-pae root=/dev/mapper/vg--large--mirror-root ro quiet splash radeon.audio=1
[...]
[   52.612699] irq 16: nobody cared (try booting with the "irqpoll" option)
[   52.612709] Pid: 255, comm: plymouthd Not tainted 3.2.0-2-686-pae #1
[   52.612713] Call Trace:
[   52.612730]  [<c1078a21>] ? __report_bad_irq+0x1c/0x8d
[   52.612736]  [<c1078c2b>] ? note_interrupt+0x122/0x18f
[   52.612742]  [<c10775cb>] ? handle_irq_event_percpu+0x142/0x158
[   52.612748]  [<c10791de>] ? handle_level_irq+0x56/0x56
[   52.612753]  [<c1077602>] ? handle_irq_event+0x21/0x37
[   52.612758]  [<c10791de>] ? handle_level_irq+0x56/0x56
[   52.612764]  [<c107923e>] ? handle_fasteoi_irq+0x60/0x85
[   52.612767]  <IRQ>  [<c100cdcf>] ? do_IRQ+0x2e/0x76
[   52.612781]  [<c12c57f0>] ? common_interrupt+0x30/0x38
[   52.612787]  [<c12c007b>] ? mutex_unlock+0x10/0x12
[   52.612792]  [<c12c0000>] ? __wait_on_bit+0x4c/0x54
[   52.612795] handlers:
[   52.612844] [<f82722fd>] usb_hcd_irq
[   52.612860] [<f82722fd>] usb_hcd_irq
[   52.612893] [<f83d9dc9>] radeon_driver_irq_handler_kms
[   52.612898] Disabling IRQ #16
[   54.112026] hda-intel: azx_get_response timeout, switching to polling mode: last cmd=0x000f0001
[   54.121170] HDMI status: Codec=0 Pin=3 Presence_Detect=1 ELD_Valid=1
[   54.121422] input: HDA ATI HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card5/input8

I don't know whether it's relevant, but the card I'm using doesn't
advertise HDMI output in its documentation; it has two DVI outputs, I
don't have a DVI-HDMI adapter to try with it, so I don't know if there
is actually any way of getting audio out of it.

Regards,

Stephen