| Summary: |
Video sync problems after quitting X on Broadwell |
| Product: |
xorg
|
Reporter: |
Nick Bowler <nbowler> |
| Component: |
Driver/intel | Assignee: |
Chris Wilson <chris> |
| Status: |
RESOLVED
DUPLICATE
|
QA Contact: |
Intel GFX Bugs mailing list <intel-gfx-bugs> |
| Severity: |
normal
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| Priority: |
medium
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| Version: |
unspecified | |
|
| Hardware: |
Other | |
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| OS: |
All | |
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| Whiteboard: |
|
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i915 platform:
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i915 features:
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| Attachments: |
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Created attachment 115142 [details] Xorg log On my shiny new Thinkpad X250, when the X server is terminated on the intel driver, the display becomes completely unstable (video just all messed up, looks like complete loss of both horizontal and vertical sync). Starting the X server again does not correct the issue; the display remains messed up until reboot. The final line in the kernel log seems relevant: [ 90.454275] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun To reproduce, I just do startx, then press ctrl+alt+bksp. Happens every time. The modesetting driver does not have this problem. Linux 4.0 X server 1.17.1 xf86-video-intel git libdrm 2.4.60