Public bug reported: When using Sunix latest low power VGA or DVI controller (see link below) on Ubuntu 16.04, 17.04 or 17.10 with Kernel 4.11 and later cause the system to crash on boot (the system will not become reachable via network too, so I cannot extract any logs).
By using a second graphics controller I was able to extract the attached kernel message from the system. The issue also occurs with the latest mainline kernel (tested up to 4.13-rc3). Sunix changed their graphics chip at some point from Volari Z11 to Silicon Motion SM750. With the older generation, which uses the Z11, everything is working. Links to the graphics controllers which were previously mentioned: http://www.sunix.com/en/product_detail.php?cid=1&kid=2&gid=15&pid=1760 http://www.sunix.com/en/product_detail.php?cid=1&kid=2&gid=15&pid=1766 previous generation Sunix 2D VGA controller: http://www.sunix.com.tw/product/vga0411.html When using Fedora 26 Server, which also uses Kernel 4.11+, everything is working, too. So I'm not sure, if this is actually an upstream issue. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Attachment added: "journal.txt" https://bugs.launchpad.net/bugs/1707641/+attachment/4924549/+files/journal.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1707641 Title: Sunix 2D VGA controller causes kernel panic and crash on boot Status in linux package in Ubuntu: New Bug description: When using Sunix latest low power VGA or DVI controller (see link below) on Ubuntu 16.04, 17.04 or 17.10 with Kernel 4.11 and later cause the system to crash on boot (the system will not become reachable via network too, so I cannot extract any logs). By using a second graphics controller I was able to extract the attached kernel message from the system. The issue also occurs with the latest mainline kernel (tested up to 4.13-rc3). Sunix changed their graphics chip at some point from Volari Z11 to Silicon Motion SM750. With the older generation, which uses the Z11, everything is working. Links to the graphics controllers which were previously mentioned: http://www.sunix.com/en/product_detail.php?cid=1&kid=2&gid=15&pid=1760 http://www.sunix.com/en/product_detail.php?cid=1&kid=2&gid=15&pid=1766 previous generation Sunix 2D VGA controller: http://www.sunix.com.tw/product/vga0411.html When using Fedora 26 Server, which also uses Kernel 4.11+, everything is working, too. So I'm not sure, if this is actually an upstream issue. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1707641/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
