Well i tried to monitor via ssh. This is the output of sudo cat /proc/kmsg :
succesful shutdown: [EMAIL PROTECTED]:~$ sudo cat /proc/kmsg Password: <6>[17179708.412000] [fglrx] total GART = 67108864 <6>[17179708.412000] [fglrx] free GART = 51118080 <6>[17179708.412000] [fglrx] max single GART = 51118080 <6>[17179708.412000] [fglrx] total LFB = 128905216 <6>[17179708.412000] [fglrx] free LFB = 122613760 <6>[17179708.412000] [fglrx] max single LFB = 122613760 <6>[17179708.412000] [fglrx] total Inv = 0 <6>[17179708.412000] [fglrx] free Inv = 0 <6>[17179708.412000] [fglrx] max single Inv = 0 <6>[17179708.412000] [fglrx] total TIM = 0 Broadcast message from [EMAIL PROTECTED] (Mon Nov 27 19:04:05 2006): The system is going down for reboot NOW! <5>[17179714.820000] apm: disabled on user request. Connection to 10.0.0.7 closed by remote host. Connection to 10.0.0.7 closed. shutdown when it locks: [EMAIL PROTECTED]:~$ sudo cat /proc/kmsg Password: <6>[17179644.604000] [fglrx] total GART = 67108864 <6>[17179644.604000] [fglrx] free GART = 51118080 <6>[17179644.604000] [fglrx] max single GART = 51118080 <6>[17179644.604000] [fglrx] total LFB = 128905216 <6>[17179644.604000] [fglrx] free LFB = 122613760 <6>[17179644.604000] [fglrx] max single LFB = 122613760 <6>[17179644.604000] [fglrx] total Inv = 0 <6>[17179644.604000] [fglrx] free Inv = 0 <6>[17179644.604000] [fglrx] max single Inv = 0 <6>[17179644.604000] [fglrx] total TIM = 0 And then ssh locks. Output seems the same. BTW, the above is on dapper because I reverted to it (clean install) on this machine, but the problem remained. Otherwise, i forgot to mention that on edgy, when in X i have no access to a virtual tty (ctrl+alt+Fx), it appears completely garbled, but accepts "blind" input. No such problem in dapper. It seems to me that this problem appeared after this famous hi-panic xorg dapper upgrade which broke many ubuntus, but now i forgot to test this before patching my new dapper install. Last thing, in dapper swithching to a console and rebooting from there never caused any problems -- Lockup problems with both the free xorg ATI driver and the proprietary fglrx driver, using various ATI cards https://launchpad.net/bugs/30447 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs