Chanyeong Lim asp345

## 0000_UM3402YAR.md

      
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                masselstine
                / 0000_UM3402YAR.md
            
            
              Last active
              July 20, 2024 06:37
            
              
                Linux on the Zenbook 14 OLED refresh (UM3402YAR)
              
          
    Linux on the Zenbook 14 OLED (refresh) - Model UM3402YAR

BIOS

The latest BIOS is version 303 "UM3402YAR.303" (Release Date: 09/05/2023). All items posted here will be specific to the model number and BIOS version described here (BIOS 300, 302 were known working). Some things might be specific to Arch Linux but should be generic and portable to other distributions. There are no guarantees and should you wish to try any of this out it is assumed to be at your own risk.
Sound

The sound does not work out of the box (at least not on Arch but I am guessing for most Distros as well).
The patch 0001-ALSA-hda-realtek-Add-quirk-for-ASUS-UM3402YAR-using-.patch is required to be applied to kernels older than v6.4 to ensure that the Realtek sound device is properly bound to the Cirrus amplifiers. If you are using kernel v6.4 or newer this patch is not needed.
The ssdt_csc3551.dsl file can be used per the instructions found in the file header. No need to patch the DSDT, this is a stand-alone SSDT that is easily u

  
## cs35l41_spi.md

      
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                lamperez
                / cs35l41_spi.md
            
            
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              July 15, 2024 23:41
            
              
                CS35L41 amplifiers in an ASUS Zenbook on linux
              
          
    Asus Zenbook UX3402 speakers on Linux

Important
THIS IS NOW OBSOLETE WITH KERNEL VERSIONS ≥ 6.7.0
A recent announcement in the kernel mail list by Cirrus developers will solve the problem described here. Therefore, the proposed solutions will be soon obsolete.
See this comment (thanks, @flukejones, for the tip).

I got the speakers working on my Asus Zenbook 14 OLED UX3402, the one with Intel CPU and the two CS35L41
audio amplifiers connected over SPI (not the UM3402YA, with AMD and I²C). The amplifiers are supported by the snd_hda_scodec_cs35l41 module in recent kernel versions, but they require some model-specific configuration paramaters, that should be provided by