| Bug ID | 98176 |
|---|---|
| Summary | External HDMI monitor not woken from sleep/power saving mode when coming back from idle |
| Product | Mesa |
| Version | 12.0 |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | nekohayo@gmail.com |
| QA Contact | dri-devel@lists.freedesktop.org |
I have a LG 25UM58-P 2560x1080 monitor, which only has two HDMI inputs, connected to my Radeon 7770's HDMI port. It works fine, except that whenever the computer/radeon puts the monitor to sleep (when I lock my screen or put the computer into suspend mode), the screen monitor loses the signal and turns off entirely, requiring me to force-turn-it-on whenever I reactivate my computer and unlock my screen. This did not happen with my previous monitor connected over DVI, and I thought "oh well, maybe it's a quirk of the new monitor"... except that while testing out a nVidia FX 580 with the Nouveau driver today, I realized that this driver was able to wake up the screen from GNOME Shell's screen lock, so that indicates that leads me to believe the radeonsi driver actually is the one causing the problem.
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