Happily installed kubuntu 20.04 to find out my sound is completely dead.
RS780 HDMI Audio [Radeon 3000/3100 / HD 3200/3300]
HDMI audio visible only in pavucontrol, although it shows unplugged.
kernel: 5.3.0-51-generic
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Same error after wake-up from sleep. It takes about 2-3 minutes to wake-
up sometimes.
OS: Ubuntu 10.10 64.bit
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M92 [Mobility
Radeon HD 4500 Series] [1002:9553] (prog-if 00 [VGA controller])
Subsystem: Lenovo Device
On 10.10 Ubuntu with Lenovo l512 same issue microphone mute button
doesnt work, LEDs in sound and microphone mute button doesnt work.
But i found funny thing. After reboot from W7 where i mute sound LED in
button still lights even in Ubuntu, but now i cant turn that LED off.
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Thinkpad T400s,
