| Summary: | [IVB DP Dongle] Apple miniDP-to-DP dongle hotplug fail after start X | ||||||
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| Product: | DRI | Reporter: | Qingshuai Tian <qingshuai.tian> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | intel-gfx-bugs | ||||
| Version: | unspecified | ||||||
| Hardware: | Other | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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If you plug in a monitor after X is started, it is up to userspace to decide what it wants to do with the monitor. Your userspace left it disabled until you manually enabled it with xrandr. Got it! Thanks! |
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Created attachment 92207 [details] dmesg of DP dongle plugged in after X starting Environment: ------------------- Kernel: (drm-intel-next-queued) f1fcde49872f390a4060fa9ee8b02d3f2a8508b7 Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B03.1211161133 11/16/2012 Description: -------------------- When I plugged the miniDP-to-DP dongle in the machine after booting up and starting X, the DP monitor was black, while xrandr command showed "DP2 connected (normal left inverted right x axis y axis)". After I set command "xrandr --output DP2 --preferred" , the monitor can show correctly. And the hotplug will also work well since then. The miniDP-to-DP dongle hotplug works well without starting X. Test Step: -------------------- 1.reboot machine 2.start X 3.plug in miniDP-to-DP