Re: Acer Chromebook 15 CB3-532 Debian Testing microphone not working
Alexander van der Leun <alex@vdleun.net> writes:
> On Tue, Nov 09, 2021 at 02:49:55PM +0100, Alexander van der Leun wrote:
>> Hi Dekks Herton,
>>
>> On Tue, Nov 09, 2021 at 05:44:08AM +0000, Dekks Herton wrote:
>> > 3 - This Chromebook uses an old Intel CPU based on Braswell which Intel recently
>> > rewrote the sound driver to use Intel_captpt driver. Is the soundcard
>> > using captpt or snd_hda_intel?
>>
>> The soundcard uses snd_hda_intel. The current kernel 5.14.0-2-amd64 seems not to
>> have a module named captpt. Where can I read more about this rewrite? A Google
>> search doesn't seem to come up with much.
>
> Found the mentioned driver, snd_soc_catpt, but cannot seem to get it to work.
> Also blacklisted the snd_hda_intel and rt5650 drivers. But still no output
> in the kernel logs or aplay -l finding sound cards.
>
> Does this driver really work on this hardware:
>
> # lshw
> linuxbook
> description: Laptop
> product: Banon
> vendor: GOOGLE
> version: 1.0
> width: 64 bits
> capabilities: smbios-3.3.0 dmi-3.3.0 smp vsyscall32
> configuration: boot=normal chassis=laptop family=Intel_Strago
> *-core
> description: Motherboard
> product: Banon
> vendor: GOOGLE
> physical id: 0
> version: 1.0
> *-firmware
> description: BIOS
> vendor: coreboot
> physical id: 0
> version: MrChromebox-4.14
> date: 07/25/2021
> size: 1MiB
> capacity: 8MiB
> capabilities: pci pcmcia upgrade bootselect acpi
> *-cpu
> description: CPU
> product: Intel(R) Celeron(R) CPU N3060 @ 1.60GHz
> vendor: Intel Corp.
> physical id: 4
> bus info: cpu@0
> version: 6.76.4
> slot: CPU0
> size: 580MHz
> capacity: 2480MHz
> width: 64 bits
> capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear cpufreq
> configuration: cores=2 enabledcores=2 microcode=1041 threads=2
Hi Alexander,
Ive got my Braswell and Broadwell mixed up, Broadwell is PC chip,
Braswell is SoC based of Silvermont, catpt won't help in this case.
Sorry.
Regards.....
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