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Description of problem:
If I plug additional monitor, which is off in display preferences, it shows static screen from VGA buffer.
Version-Release number of selected component (if applicable):
rhel6.8-z
How reproducible:always
Steps to Reproduce:
1.Boot rhel6.8 with at least two monitors plugged
2.Open Display Preferences and turn additional monitor off there
3.Unplug additional monitor cable from PC
4.Plug this monitor back
Actual results:
Additional monitor shows static screen. Display Preferences indicating that monitor is in the off state.
Expected results:
Either turn the monitor On properly (also in Display Preferences and without static screen) or do not turn on the monitor at all (e.g. without static screen). I think that the second option is better. The user then would have to turn the monitor on by himself in Display Preferences and it is logical - if the monitor was in off state before re-plugging it ought to be in the same state after re-plugging.
Additional info:
Graphic card used:
# lspci -v
01:00.0 VGA compatible controller: NVIDIA Corporation G98 [Quadro NVS 295] (rev a1) (prog-if 00 [VGA controller])
Subsystem: NVIDIA Corporation Device 062e
Physical Slot: 2
Flags: bus master, fast devsel, latency 0, IRQ 30
Memory at f1000000 (32-bit, non-prefetchable) [size=16M]
Memory at f8000000 (64-bit, prefetchable) [size=64M]
Memory at f2000000 (64-bit, non-prefetchable) [size=32M]
I/O ports at 1100 [size=128]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nouveau, nvidiafb
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