HDMI Audio screwed up w/ recent kernels
daniel at ffwll.ch
Tue Dec 27 09:47:07 UTC 2016
On Thu, Dec 22, 2016 at 07:49:57PM -0500, James Cloos wrote:
> I haven't paid as close attention to Xorg issues sine the stroke last
> year, and I hadn't needed to reboot the box in the living room in
> several months.
> When I did need to, I found that hdmi audio was unlistenable. It
> sounded like it was mixed witht white noise.
> If I boot vmlinuz-3.19.0 is works fine. I had compiled 4.1.0 and 4.5.0,
> as well as its current default kernel, 4.9.0 (all from Linus' git). All
> of those 4. kernels show the crappy audio.
> In 4.9 I then tried switching to amdgpu. That did not help.
> The box has a Kaveri apu (ChipID 0x1313).
> Firmware is from linux-firmware.git and is compiled into the kernel via
> With radeon the kernel command line has: radeon.modeset=1 radeon.audio=1
> With amdgpu I switched to: amdgpu.audio=1 amdgpu.exp_hw_support=1
> Any thoughs on where to look?
> I find it hard to believe that a bug like this could persist for so
amdgpu doesn't yet support hdmi audio. No idea about what broke for
radeon, bisecting is probably going to be the most effective way forward
(since 3.19->4.0 is so long ago no one will remember what happened back
> James Cloos <cloos at jhcloos.com> OpenPGP: 0x997A9F17ED7DAEA6
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
Software Engineer, Intel Corporation
More information about the dri-devel