Bug 657133 - Can't get VGA output on Thinkpad Z60m with Radeon Mobility X600
Summary: Can't get VGA output on Thinkpad Z60m with Radeon Mobility X600
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 14
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Dave Airlie
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2010-11-25 01:57 UTC by Chris Adams
Modified: 2010-12-22 21:29 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-12-22 21:29:32 UTC
Type: ---

Attachments (Terms of Use)
full boot log (63.33 KB, text/plain)
2010-12-10 01:11 UTC, Chris Adams
no flags Details

Description Chris Adams 2010-11-25 01:57:16 UTC
I have a Thinkpad Z60m with ATI Radeon Mobility X600 graphics.  When I connect a VGA cable to a monitor, I can see it (using the GNOME monitors tool and xranr), but I can't get any output.  The kernel starts logging:

[12523.318078] [drm] 1: conflicting encoders switching off VGA-1
[12523.318082] [drm] in favor of DVI-I-1
[12523.411543] [drm] 1: conflicting encoders switching off DVI-I-1
[12523.411547] [drm] in favor of VGA-1

over and over again.  I thought it might be kernel modesetting related, so I tried booting with nomodeset; that resulted in X segfaulting (according to /var/log/Xorg.0.log).

Comment 1 Dave Airlie 2010-12-10 00:38:32 UTC
can you attach a full dmesg from a boot with this card in?

Comment 2 Chris Adams 2010-12-10 01:11:40 UTC
Created attachment 467883 [details]
full boot log

Comment 3 Chris Adams 2010-12-10 01:14:56 UTC
FYI: it turns out I'm getting a new notebook in about two weeks (Merry Christmas to me!).  I'd like to help debug this in that time if at all possible (in case it affects others), but I won't be able to look at or test anything after that (somebody else is getting this notebook).  If you think it might be an isolated case and want to spend time working on other stuff, I understand that too.

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