Bug 86131
Summary: | [ivb] Thinkpad external monitor support is broken | ||
---|---|---|---|
Product: | Drivers | Reporter: | Sebastian Jylanki (sebastian.jylanki) |
Component: | Video(DRI - Intel) | Assignee: | intel-gfx-bugs (intel-gfx-bugs) |
Status: | RESOLVED OBSOLETE | ||
Severity: | normal | CC: | alan, daniel, intel-gfx-bugs |
Priority: | P1 | ||
Hardware: | Intel | ||
OS: | Linux | ||
Kernel Version: | 3.16-2-amd64 | Subsystem: | |
Regression: | Yes | Bisected commit-id: |
Description
Sebastian Jylanki
2014-10-12 17:21:03 UTC
What video is present - Intel or AMD ? > What video is present - Intel or AMD ?
lspci | grep VGA:
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
Please post dmesg with drm.debug=14, all the way from boot to the problem (trying the key combo), for both 3.10 and 3.16. Sorry for the delay Jani. Here is dmesg with 3.10: http://pastebin.com/9dwy9ks3 Here is dmesg with 3.16: http://pastebin.com/tYxwtDTs Just ask if you need any more info, I'll try to be faster next time. dp aux seems to get pissed in 3.16 and worked in 3.10. Backtraces look like mostly fallout from that (plus more paranoid checks). But an awful lot happened in that timeframe, so can you please try to bisect which exact commit introduced this regression? That usually helps a lot in tracking such bugs down. (In reply to Daniel Vetter from comment #5) > dp aux seems to get pissed in 3.16 and worked in 3.10. Backtraces look like > mostly fallout from that (plus more paranoid checks). > > But an awful lot happened in that timeframe, so can you please try to bisect > which exact commit introduced this regression? That usually helps a lot in > tracking such bugs down. Ping for either a bisect or a test on the most recent kernels. An awful lot has also happened since 3.16... Timeout. Please reopen if the problem persists with new kernels. |