#586345 vbetool dpms <...> sometimes fails

Package:
vbetool
Source:
vbetool
Description:
run real-mode video BIOS code to alter hardware state
Submitter:
Krasu
Date:
2010-07-01 12:36:07 UTC
Severity:
important
#586345#5
Date:
2010-06-18 16:12:39 UTC
From:
To:
Sometimes vbetool dpms <...> (on, or off, of suspend or) hangs up. Sometimes it
takes 1 minute or more to set given dpms mode.
#586345#10
Date:
2010-07-01 12:33:07 UTC
From:
To:
I see tons of "vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)"
in strace log (attached):

...
access("/sys/bus/pci", R_OK) = 0
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
vm86old(0xb77fbdac) = -1 ENOSYS (Function not implemented)
...