Old ATI card and xorg/lightdm
I have installed Xubuntu 13.04 on a laptop with an ancient ATI 3D Rage graphics card (a Sony Vaio PCG-972M). However the graphics only works when the vesa driver is set in xorg.conf. With the 'ati' driver wrapper it reaches a console saying 'Starting lightdm display manager' then the screen goes black every few seconds as it repeatedly restarts. Below are some interesting snippets about this from Xorg.0.log and lightdm.log. Is it a hopeless case?
Xorg.0.log
[ 143.027] (II) LoadModule: "mach64"
[ 143.029] (II) Loading /usr/lib/
[ 143.058] (II) MACH64(0): VESA BIOS detected
[ 143.109] (--) MACH64(0): ATI 3D Rage Mobility graphics controller detected.
[ 143.126] (**) MACH64(0): *Default mode "1024x768i": 44.9 MHz, 35.5 kHz, 86.9 Hz (I)
[ 143.409] (EE) [drm] drmOpen failed.
[ 143.409] (EE) MACH64(0): [dri] DRIScreenInit Failed
[ 143.415] (II) MACH64(0): Direct rendering disabled
lightdm.log
[+5.82s] DEBUG: Activating VT 7
[+21.15s] DEBUG: Process 1026 terminated with signal 6
[+21.15s] DEBUG: X server stopped
[+21.15s] DEBUG: Removing X server authority /var/run/
[+21.15s] DEBUG: Releasing VT 7
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