Just had this issue twice after upgrading from qantal to raring :( I'm getting "(EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed" in xorg log and system freezes and I have to do a hard reset.
uname -a
Linux 3.8.0-19-generic #29-Ubuntu SMP Wed Apr 17 18:19:42 UTC 2013 i686 i686 i686 GNU/Linux
lspci -v -s `lspci | awk '/VGA/{print $1}'`
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 2abf
Flags: bus master, fast devsel, latency 0, IRQ 50
Memory at fe000000 (64-bit, non-prefetchable) [size=4M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Just had this issue twice after upgrading from qantal to raring :( I'm getting "(EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed" in xorg log and system freezes and I have to do a hard reset.
uname -a
Linux 3.8.0-19-generic #29-Ubuntu SMP Wed Apr 17 18:19:42 UTC 2013 i686 i686 i686 GNU/Linux
lspci -v -s `lspci | awk '/VGA/{print $1}'`
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 2abf
Flags: bus master, fast devsel, latency 0, IRQ 50
Memory at fe000000 (64-bit, non-prefetchable) [size=4M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915