From AAEON latest update, it seems like a BIOS issue.
But question to Ethan and Kernel team, Could Ubuntu check the ACPI table for COM port declared by BIOS?
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Subject: RE: R1.4 (EAPLAM14)(12/21/2018): EMB-APL1 BIOS Release
Dear Max,
昨天我有發一版M15 BIOS,有測試過Ubuntu & Windows下COM 1~6皆可以使用了。
Ubuntu似乎不像Windows一樣會參考BIOS宣告COM port的ACPI table,所以需要透過setserial這tool告訴OS COM port resource,SOP如下:
l sudo apt-get update
l sudo apt-get install setserial
l sudoedit /var/lib/setserial/autoserial.conf (如圖1)
1. 加入 (如圖1-1)
/dev/ttyS4 uart 16550A port 0x2F0 irq 11 baud_base 115200 spd_normal skip_test
/dev/ttyS5 uart 16550A port 0x2E0 irq 11 baud_base 115200 spd_normal skip_test
2. 按Ctrl+X離開,選manual (如圖1-2)
l sudo dpkg-reconfigure setserial
l reboot system
l sudo setserial –g /dev/ttyS[012345] (檢查COM port數值,如圖2)
另外,BIOS無法指定COM port IRQ的問題,目前COM port 3 & 4及5 & 6是share IRQ的方式,所以數值會共用。
Thanks
From AAEON latest update, it seems like a BIOS issue.
But question to Ethan and Kernel team, Could Ubuntu check the ACPI table for COM port declared by BIOS?
======= ======= ======= ======= ======= ======= =======
Subject: RE: R1.4 (EAPLAM14) (12/21/ 2018): EMB-APL1 BIOS Release
Dear Max,
昨天我有發一版M15 BIOS,有測試過Ubuntu & Windows下COM 1~6皆可以使用了。
Ubuntu似乎不像Windo ws一樣會參考BIOS宣告CO M port的ACPI table,所以需要透過set serial這tool告訴OS COM port resource,SOP如下:
l sudo apt-get update
l sudo apt-get install setserial
l sudoedit /var/lib/ setserial/ autoserial. conf (如圖1)
1. 加入 (如圖1-1)
/dev/ttyS4 uart 16550A port 0x2F0 irq 11 baud_base 115200 spd_normal skip_test
/dev/ttyS5 uart 16550A port 0x2E0 irq 11 baud_base 115200 spd_normal skip_test
2. 按Ctrl+X離開,選manual (如圖1-2)
l sudo dpkg-reconfigure setserial
l reboot system
l sudo setserial –g /dev/ttyS[012345] (檢查COM port數值,如圖2)
另外,BIOS無法指定COM port IRQ的問題,目前COM port 3 & 4及5 & 6是share IRQ的方式,所以數值會共用。
Thanks