Bug 201547
| Summary: | [i915] after resume from DPMS, the display is still black. i can operate the system blindly. | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | nanericwang |
| Component: | Video(Other) | Assignee: | drivers_video-other |
| Status: | RESOLVED INVALID | ||
| Severity: | normal | ||
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 4.19 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg
xorg.conf xorg.0.log xorg.1.log dmesg with drm.debug=0x1e log_buf_len=4M |
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Created attachment 279227 [details]
xorg.conf
Created attachment 279229 [details]
xorg.0.log
Created attachment 279231 [details]
xorg.1.log
Created attachment 279233 [details]
dmesg with drm.debug=0x1e log_buf_len=4M
I saw "eDP port A panel power wasn't enabled" in dmesg. And then, I explicitly suspended laptop and resumed to bring the screen back. Please file drm/i915 bugs at https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel |
Created attachment 279225 [details] dmesg Repro steps: 1. "xset dpms force standby" or "xset dpms force off" 2. press any key or move mouse 4. the screen is totally black, but i can still operate the system blindly. I use modesetting driver on KabyLake 7200U. btw, my another machine (AMD iGPU) uses same modesetting driver + same kernel + same distro, but has no such issue.