[prev in list] [next in list] [prev in thread] [next in thread] 

List:       freedesktop-xorg
Subject:    Re: X will not start on a Thinkpad 240 using neomagic
From:       Alex Bowden <alex.bowden () outlook ! com>
Date:       2018-01-25 17:33:17
Message-ID: BN6PR13MB1650C01BBB0617ACCF948253F7E10 () BN6PR13MB1650 ! namprd13 ! prod ! outlook ! com
[Download RAW message or body]

Hi Michel,

Thank you very much for the insight on CONFIG_IO_STRICT_DEVMEM. I was able to use \
SystemTap to find where the error was occurring in the kernel. It turns out the \
vesafb takes the framebuffer and sets it IO_RESOURCE_BUSY using sysfb. When the \
framebuffer memory is set as busy and the strict devmem is enabled it will not allow \
the userspace to mmap this area. I changed my grub config to use \
GRUB_TERMINAL=console and that fixed the problem!!

-Alex
_______________________________________________
xorg@lists.x.org: X.Org support
Archives: http://lists.freedesktop.org/archives/xorg
Info: https://lists.x.org/mailman/listinfo/xorg
Your subscription address: %(user_address)s


[prev in list] [next in list] [prev in thread] [next in thread]