Unable to start X11 with latest dports + kernel

[kyuupichan]

Thanks Francois, I've just tried that and it solved the problem.  It required a reboot as well though - presumably
some kernel state remains switched from running the old one; perhaps a bug in istelf.

A minor relief - thanks very much!

Neil.

---- On Wed, 11 Jun 2014 23:25:14 -0700 Francois Tigeot<ftigeot at wolfpond.org> wrote ---- 

 > On Wed, Jun 11, 2014 at 09:16:20PM -0700, kyuupichan wrote: 
 > > Yesterday I upgraded my packages (first installed about 1 month earlier) and I suspect that included various X11 packages. 
 > >  
 > > After rebooting because the USB mouse froze (as it tended to do about once a week, usually when firefox was under heavy load scrolling a web page with images), I was unable to restart X11. 
 > >  
 > > I've attached the full X11 log but these are the relevant parts: 
 > >  
 > > [  8919.997] (--) RADEON(0): Chipset: "AMD Radeon HD 6310 Graphics" (ChipID = 0x9802) 
 > > [  8919.998] drmOpenDevice: node name is /dev/dri/card0 
 > > [  8919.998] Failed to change owner or group for file /dev/dri/card0! 2: No such file or directory 
 > [...] 
 > > [  8919.998] (EE) RADEON(0): [drm] Failed to open DRM device for pci:0000:00:01.0: No such file or directory 
 > >  
 > > Looking at dmesg (also attached) the above seems to be because the kernel DRI layer is struggling with the graphics card: 
 > >  
 > > info: [drm] Initialized drm 1.1.0 20060810 
 > > drm0: <Wrestler [Radeon HD 6310]> on vgapci0 
 > [...] 
 > > drm0: error: Fatal error during GPU init 
 > > info: [drm] radeon: finishing device. 
 > >  
 > > So I tried updating to the latest kernel, but the result is the same. 
 > [...] 
 > > This hardware used to work with Dragonfly (although admittedly poorly : once in X returning to the console was impossible). 
 > > I can't really continue to use this without a windowing environment.  Any ideas on what is needed to fix it? 
 >  
 > This is actually an issue in dports; the xf86-video-ati driver has been 
 > prematurely switched to the KMS version for DragonFly >= 3.8 
 >  
 > The old user-mode switching version, xf86-video-ati-6.14.6_3 still works 
 > better; I have changed the defaults back but it will take time to regenerate 
 > the dports tree and binary packages. 
 >  
 > You'll have to build xf86-video-ati manually to get the working version for 
 > now: 
 >  
 > * Remove the existing xf86-video-ati package 
 > * Checkout the dports tree in /usr/dports 
 > * cd to /usr/dports/x11-drivers/xf86-video-ati 
 > * Edit the Makefile file and replace this line: 
 >  
 > .if ${DFLYVERSION} < 300751 || !defined(WITH_NEW_XORG) 
 >  
 > by this one: 
 >  
 > .if ${DFLYVERSION} < 300951 || !defined(WITH_NEW_XORG) 
 >  
 > * build and install the port 
 >  
 > --  
 > Francois Tigeot 
 >