hi Danniel, This forwarded mail are from Huawei guy which to say "PCI_BRIDGE_CTL_VGA" are only used on X86 but not for AMR64. The English line was my translated for Chines text.
thanks, Mao ---------- Forwarded message ---------- From: wanghuiqiang <[email protected]> Date: 2017-06-09 13:38 GMT+08:00 Subject: 答复: 答复: 答复: vga card question for D05 To: Zourongrong <[email protected]>, Zhanglei Mao <[email protected]>, "Liuxinliang (Matthew Liu)" <[email protected]> Cc: "Xiongfanggou (James)" <[email protected]>, caesar qiu 裘赛海 <[email protected]>, allan wang 王友朋 <[email protected]>, "[email protected]" <[email protected]>, "Xiazhongjun (Summer)" <[email protected]>, "kongxinwei (A)" <[email protected]>, Land Lu <[email protected]> 不清楚你们这个问题是基于什么平台提出的。 在ARM里没有用这个PCI_BRIDGE_CTL_VGA。这是x86的架构设计里用来分配IO和memory地址空间的。而ARM世界是没有IO空间的概念的，至于memory空间，也是x86里为了支持legacy VGA而一直沿用的技术。具体信息可以看以下的内容。 Translating: I don't know which platform was this request based on. In the ARM, PCI_BRIDGE_CTL_VGA was not used. This is a x86 architecture design using as IO and Memory address space assign or allocation. In the ARM word, there are no any IO space concepts, for memory address space, it was used space technology legacy VGA supports on X86. More details can be found from below: Thanks! ** Attachment added: "screen picture for the mail for VGA compatible addressing" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991/+attachment/4892951/+files/vga-compatible-address.png -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1691991 Title: Xorg Segmentation fault on Hisilicon D05 board (arm64) Status in xorg package in Ubuntu: New Bug description: ubuntu@ubuntu:~$ sudo /usr/lib/xorg/Xorg [sudo] password for ubuntu: X.Org X Server 1.18.4 Release Date: 2016-07-19 X Protocol Version 11, Revision 0 Build Operating System: Linux 4.4.0-45-generic aarch64 Ubuntu Current Operating System: Linux ubuntu 4.10.0-20.22-generic #22+pearl.2-Ubuntu SMP Thu Apr 27 20:23:08 UTC 2017 aarch64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.10.0-20.22-generic root=UUID=eee681c5-04ce-4cd0-a004-cae6717961ce ro debug earlycon=pl011,mmio,0x602B0000 console=tty0 Build Date: 02 November 2016 10:05:28PM xorg-server 2:1.18.4-0ubuntu0.2 (For technical support please see http://www.ubuntu.com/support) Current version of pixman: 0.33.6 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Fri May 19 18:10:13 2017 (==) Using system config directory "/usr/share/X11/xorg.conf.d" pci id for fd 10: 19e5:1711, driver (null) EGL_MESA_drm_image required. (EE) (EE) Backtrace: (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x58) [0xaaaad7f1cc48] (EE) (EE) Segmentation fault at address 0xa0 (EE) Fatal server error: (EE) Caught signal 11 (Segmentation fault). Server aborting (EE) (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. (EE) (EE) Server terminated with error (1). Closing log file. Aborted (core dumped) ubuntu@ubuntu:~$ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
