I have this problem with fglrx drivers. However the system is NOT
totally unresponsive; nothing will be visible on screen, but one can
press ctrl-alt-F1 to switch to a text-based TTY and then reboot by
pressing ctrl-alt-del in a controlled fashion.
System works normally after first login as long as the user doesn't log
out (I didn't test fast user switching), and disabling Compiz won't
affect the problem. Uninstalling fglrx drivers will fix it.
Card info:
administra...@kursk:~$ sudo lspci -vvnn |grep -A 12 ATI
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV610 LE AGP
[Radeon HD 2400 PRO AGP] [1002:94c4]
Subsystem: Hightech Information System Ltd. Device [1787:0028]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 255 (2000ns min), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=256M]
Region 1: I/O ports at c800 [size=256]
Region 2: Memory at ff8f0000 (32-bit, non-prefetchable) [size=64K]
Expansion ROM at ff8c0000 [disabled] [size=128K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
--
01:00.1 Audio device [0403]: ATI Technologies Inc RV610 audio device [Radeon HD
2400 PRO] [1002:aa10]
Subsystem: Hightech Information System Ltd. Device [1787:aa10]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (2000ns min), Cache Line Size: 32 bytes
Interrupt: pin B routed to IRQ 17
Region 0: Memory at ff8ec000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
** Attachment added: "Xorg.0.log.old"
http://launchpadlibrarian.net/22686469/Xorg.0.log.old
--
[fglrx] Black screen on Logoff, System completely unresponsive [EPR#260351]
https://bugs.launchpad.net/bugs/241176
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