fastfetch 
        _,met$$$$$gg.          loong@debian
     ,g$$$$$$$$$$$$$$$P.       ------------
   ,g$$P""       """Y$$.".     OS: Debian GNU/Linux 13 (trixie) loongarch64
  ,$$P'              `$$$.     Host: Loongson-3A6000-HV-7A2000-1w-V0.1-EVB
',$$P       ,ggs.     `$$b:    Kernel: Linux 6.12.29-loong64
`d$$'     ,$P"'   .    $$$     Uptime: 58 mins
 $$P      d$'     ,    $$P     Packages: 2253 (dpkg)
 $$:      $$.   -    ,d$$'     Shell: bash 5.2.37
 $$;      Y$b._   _,d$P'       Display (WCSDQ3): 1920x1080 @ 60 Hz in 13" [External]
 Y$$.    `.`"Y$$$$P"'          DE: KDE Plasma 6.3.4
 `$$b      "-.__               WM: KWin (Wayland)
  `Y$$b                        WM Theme: Breeze
   `Y$$.                       Theme: Breeze (Light) [Qt], Breeze [GTK2/3]
     `$$b.                     Icons: breeze [Qt], breeze [GTK2/3/4]
       `Y$$b.                  Font: Noto Sans (10pt) [Qt], Noto Sans (10pt) [GTK2/3/4]
         `"Y$b._               Cursor: breeze (24px)
             `""""             Terminal: konsole 25.4.0
                               CPU: Loongson-3A6000-HV (8) @ 2.75 GHz
                               GPU: AMD Radeon HD 6450/7450/8450 / R5 230 OEM [Discrete]
                               Memory: 4.33 GiB / 31.68 GiB (14%)
                               Swap: Disabled
                               Disk (/): 13.63 GiB / 467.91 GiB (3%) - ext4
                               Local IP (wlp4s0): 192.168.1.228/24
                               Locale: zh_CN.UTF-8
换了R5 230亮机卡    显卡HDMI声音输出正常了