| Summary: | No display device detected on a Baytrail all-in-one machine. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | roberth <sarvatt> | ||||||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||
| Status: | CLOSED INVALID | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||
| Severity: | normal | ||||||||||
| Priority: | medium | CC: | intel-gfx-bugs | ||||||||
| Version: | XOrg git | ||||||||||
| Hardware: | x86-64 (AMD64) | ||||||||||
| OS: | All | ||||||||||
| See Also: | https://bugs.freedesktop.org/show_bug.cgi?id=71051 | ||||||||||
| Whiteboard: | |||||||||||
| i915 platform: | i915 features: | ||||||||||
| Attachments: |
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Created attachment 87283 [details]
Xorg.0.log
Created attachment 87284 [details]
lspci -vvnn
For starters, your xserver is broken - it is not selecting a CompatOutput() for the headless case. The BIOS sets up a 1600x900 mode on DP1, but there is not EDID for that panel so we treat it as disconnected. We have no means for determining the native timings for that panel. So either the NAK we get for the EDID probe is wrong, or the manufacturer skimped by hiding all the information in the BIOS rather than the panel firmware. If that is so, all you can do is hope for fastboot. This is probably related to #71051 Still an issue now that #71051 is fixed? I don't have access to the machine to test anymore so closing this one. |
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Created attachment 87282 [details] dmesg with drm.debug=0xe on 20131004 drm-intel-nightly After booting the internal display device is not detected by i915, the screen goes black after bios. drm.debug=0xe dmesg attached with more info. -- chipset: Intel Corporation ValleyView Gen7 [8086:0f31] -- system architecture: x86_64 -- Linux distribution: Ubuntu 12.04.2 and 13.10 -- libdrm 2.4.43 -- Kernel versions affected: 3.11-rc3, 3.11.2, 3.12-rc3, drm-intel-nightly from 20131004 -- xf86-video-intel: 2.21.15, 2.99.903 git snapshot from 20131001