I find that if I install the binary ATI driver for my
ATI Mobility Radeon HD 5400 Series card in my Dell
Zino HD, I can get audio out the HDMI port, but if
I use the open source xorg-x11-drv-ati driver I get
no audio.
The utterly mysterious bit is that lspci says the
device is using snd-hda-intel as the kernel driver,
the same driver it says it uses without the binary
video driver:
01:00.1 Audio device: ATI Technologies Inc Manhattan HDMI Audio [Mobility Radeon HD 5000 Series]
Subsystem: Dell Device aa68
Flags: bus master, fast devsel, latency 0, IRQ 43
Memory at fe7bc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Capabilities: [150] Advanced Error Reporting
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
Is there some settings here provided by the binary driver
which I could manually provide and avoid the closed source
driver? (Because the graphics look hideous in the closed
source driver - the moronic overscan setting apparently won't
actually go all the way to zero).
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