ATI FGLRX and Logging Off

Michael Bach (gmx) bach.michael at
Fri Apr 20 11:15:50 UTC 2007

Hi Larry,
here is my xorg.conf. I removed the font paths and "Input Devices", 
makes it a bit more readable. Significantly different are the options in 
your xorg.conf that go along with the "Device":
	Option 		"VideoOverlay" 		"on"
	Option 		"OpenGLOverlay" 	"off"

I assume this controls the graphics driver "fglrx"?
Also, I am not using the:

Section "Extensions"
	Option	    "Composite" "Disable"

Section "ServerFlags"
         Option  "AIGLX" "off"


my xorg.conf (clipped)

Section "Module"
         Load    "i2c"
         Load    "bitmap"
         Load    "ddc"
         Load    "dri"
         Load    "extmod"
         Load    "freetype"
         Load    "glx"
         Load    "int10"
         Load    "type1"
         Load    "vbe"
         Load    "v4l"

Section "Device"
         Identifier      "S3 Inc. SuperSavage IX/C SDR"
         Driver          "savage"
         BusID           "PCI:1:0:0"

Section "Monitor"
         Identifier      "Generic Monitor"
         Option          "DPMS"
         HorizSync       28-51
         VertRefresh     43-60

Section "Screen"
         Identifier      "Default Screen"
         Device          "S3 Inc. SuperSavage IX/C SDR"
         Monitor         "Generic Monitor"
         DefaultDepth    16
         SubSection "Display"
                 Depth           1
                 Modes           "1024x768"
         SubSection "Display"
                 Depth           4
                 Modes           "1024x768"
         SubSection "Display"
                 Depth           8
                 Modes           "1024x768"
         SubSection "Display"
                 Depth           15
                 Modes           "1024x768"
         SubSection "Display"
                 Depth           16
                 Modes           "1024x768"
         SubSection "Display"
                 Depth           24
                 Modes           "1024x768"

Section "ServerLayout"
         Identifier      "Default Layout"
         Screen          "Default Screen"
         InputDevice     "Generic Keyboard"
         InputDevice     "Configured Mouse"
#       InputDevice     "stylus" "SendCoreEvents"
#       InputDevice     "cursor" "SendCoreEvents"
#       InputDevice     "eraser" "SendCoreEvents"
#       InputDevice     "Synaptics Touchpad"

Section "DRI"
         Mode    0666

Larry Hartman wrote:
> Mike:
> Bug # 107975 on Launchpad.  The bug reporting tool came up on the last time it 
> happened, so I proceded to report it.
> My GLXinfo appears to come up properly.  I did get similar GLX/DRI errors 
> yesterday from FGLRXinfo when I first started the troubleshooting but somehow 
> managed to tweak it out by changes to my xorg.conf.  I had to essentially 
> ditch my previous xorg.conf from Kubuntu 6.10 and rebuild from scratch.  Not 
> sure what it didn't like from the old file as the new one seems to have all 
> of the same elements....  
> Does your xorg.conf differ significantly from mine (see first post)?
> Larry
> On Friday 20 April 2007 06:26:40 am Michael Bach (gmx) wrote:
>> Same problem for me on an IBM Thinkpad T23 2647
>> I ran 6.10 with an automatically configured xorg.config with no
>> problems. Even 3D stuff like Tremulous and ppracer were on decent speed
>> with the standard savage driver. Yesterday I installed 7.04 and problems
>> appeared. (The problems even persisted with using the xorg.conf from 6.10):
>> First:
>>> When I log in, I can do a shutdown and a restart from the GUI.  I can not
>>> do an end session.  When clicking the button, kdm does not load and I get
>>> the Kubuntu usplash.
>> Exactly the same on my system.
>> Second:
>> running glxinfo brings the following:
>> [mike at miami][~]$  glxinfo
>> name of display: :0.0
>> libGL error: drmMap of framebuffer failed (Invalid argument)
>> libGL error: reverting to (slow) indirect rendering
>> display: :0  screen: 0
>> direct rendering: No
>> server glx vendor string: SGI
>> server glx version string: 1.2
>> I googled for "libGL error: drmMap of framebuffer failed (Invalid
>> argument)" and various results came up. Possible solutions range from
>> dri kernel module recompile to creating symlinks of kernel objects or
>> recompiling the graphics driver.
>> I have not started looking into any of these solutions. I hope that a
>> working update to whatever the problem is becomes available soon.
>> A workaround I discovered:
>> I never liked the splashscreens (probably an old slackware heritage), so
>> I configured my /boot/grub/menu.lst and removed the "quiet"
>> kerneloption, changed to "nosplash" and use 1024*768 framebuffer
>> "vga=791". As a result, my system boots very verbosely (that's actually
>> one of the things I really like about Linux) and I eventually end up in
>> kdm. When I log in, and then out, kdm does not reappear, but a login
>> propmt shows up. When I login with my credentials, I can go back into
>> KDE with startx.
>> This is just a workaround.
>> Having found a few solutions to problem, I dare a little to go through
>> the kernel and/or graphics driver recompile lottery...
>> Mike

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