Summary: | [i915] Screen freezes (X still works) after switch from EFI VGA to inteldrmfb, if booted with DP connected, if connected after boot everything works. | ||||||||||
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Product: | DRI | Reporter: | rtur <fdsktop> | ||||||||
Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||
Status: | CLOSED WORKSFORME | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||||
Severity: | normal | ||||||||||
Priority: | medium | CC: | intel-gfx-bugs | ||||||||
Version: | unspecified | ||||||||||
Hardware: | x86-64 (AMD64) | ||||||||||
OS: | Linux (All) | ||||||||||
Whiteboard: | |||||||||||
i915 platform: | IVB | i915 features: | display/DP | ||||||||
Attachments: |
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Created attachment 130449 [details]
dmesg log without displayport connection until after boot
Created attachment 130450 [details]
xrandr verbose output with displayport connected since boot
Just a quick update. I again tried the current drm-tip, still the same problem. But it turns out, disabling legacy boot and csm (not sure if both need to be disabled though) in the bios fixes this problem for me. As far as I am concerned this is "fixed". |
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Created attachment 130448 [details] dmesg boot log with DisplayPort connected Configuration: Lenovo x230 on a Ultrabase series 3 docking station, connected to a LG 22MP57VQ-P Display through a DisplayPort to DVI-D adapter. I'm running Arch Linux with the current drm-tip kernel 4.11.0-1. Problem Description: If I boot with the Display connected through Displayport, the console output freezes after the message: fb: switching to inteldrmfb from EFI VGA I still can log in at this point and the display works again as soon as X is started (see dmesg_DP_connected_boot attachment). But if I try to switch to a TTY the screen goes blank, if switched back to X everything works again. If I boot without the Displayport connection everything works, nothing freezes. Even after attaching the display through DisplayPort everything works (TTY switch works also). (see dmesg_DP_connected_after_boot attachment in my next comment.) Steps to reproduce: Boot with Displayport connected Display. If I forgot some important information please let me know and I'll provide it, also if you need a tester for this I would gladly be of assistance.