Bug 54711
| Summary: | Screen corruption with Intel Integrated Graphics i915 | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Jack Hill (jackhill) |
| Component: | Video(DRI - Intel) | Assignee: | intel-gfx-bugs (intel-gfx-bugs) |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | chris, intel-gfx-bugs |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | >=3.7 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
| Attachments: |
Image of screen corruption
Image of screen corruption |
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Created attachment 94331 [details]
Image of screen corruption
commit da88a5f7f7d434e2cde1b3e19d952e6d84533662 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed Feb 13 09:31:53 2013 +0000 drm/i915: Disable WC PTE updates to w/a buggy IOMMU on ILK |
Created attachment 94321 [details] Image of screen corruption I have an Intel graphics contoller, $ lspci |grep VGA 00:02.0 VGA compatible controller: Inter Corporation Core Processor Integrated Graphics Controller (rev 02) I am using kms/drm. On older kernels (e.g. 3.6) during startup, kms would be enable and it would switch to the high resolution consols (later, X could also ue the graphics contoller correctly). On newer kernels (e.g. 3.7 and 3.8) I observed the corruption (see attached image) when kms was enabled. Other than the screen corruption in both the text console and X, everything worked fine. I used git bisect to narrow down the problem to commit edef7e685da05c13cce50c0126189c80fe2c8f71