Comment 8 for bug 1527829
Revision history for this message
| Derek (avastmc) wrote Re: displayport MST external monitors don't return from sleep mode | #8 |
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Additional info: When in intended setup (two monitors on one DP) the ASUS brand monitor flickers occasionally (not a nuisance)
- Connecting just the ASUS to the adapter (other HDMI port unpopulated) the monitor flickers repeatedly, indefinitely, often. This is regardless of which of the 2 ports it's on. I have attached verbose (drm.debug=0x05) kernel logs of this behavior
- Connecting just the samsung (second external monitor) to the adapter works fine, and when going to powersave using "xset dpms force off" monitor&panel stay off, although the external monitor doesn't come on after resume (topic issue), confirmed multiple times
So it seems like the ASUS is causing all monitors/panel to wake up ~15s after display standby.
In the attached log, the monitor cycling on/off happens 5 times