My MacBookPro4,1 has a GeForce 8600M GT. It has an external DVI port, and comes with a DVI->VGA adapter. I've been testing it with my Panasonic TV, which can take either DVI or VGA input. I can use xrandr to enable the external display, with either of the two cables I have attached to it (using digital or analogue output). I can disable the display, and re-enable it again. All is well... although occasionally I've seen 'xrandr --output DVI1 --right-of LVDS1' fail with a 'BadMatch' error. Most of the time it's fine though... until I _change_ cables (change between digital and analogue output on the DVI port). Sometimes when I run 'xrandr --auto' after changing the cable, it crashes. Other times, it claims to have worked, but I get nothing on the screen. I have to reboot to change between the two. I see '[drm] i2c and hpd detect differ: 1 vs 0' in the kernel output.
Can you post the full /var/log/messages (indicating when you did what, to compare against the timestamps, would be awesome) and also /var/log/Xorg.0.log? Thanks.
Hm, seems to have regressed -- I can't get DVI output to work at all any more; only VGA. At http://david.woodhou.se/nv-crash.gz there's a kernel log with drm.debug=1 of what happened when I used gnome-display-properties to successfully enable the VGA output, then attempted to switch to DVI mode. (It's actually the same external monitor, well, television, both times -- just through a different cable). It's a big file. The fun part is at http://www.kerneloops.org/submitresult.php?number=361965
When I try to enable DVI without previously using VGA output, the failure mode is different. It doesn't work, and the X server gets very unresponsive. I see this in dmesg: Apr 18 01:44:47 macbook kernel: [drm:drm_mode_getfb] *ERROR* invalid framebuffer id Apr 18 01:44:47 macbook kernel: [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on crtc ffff88013cd30000 Apr 18 01:44:51 macbook kernel: nouveau 0000:01:00.0: timeout: 0x610300 = 0x80010081 Apr 18 01:44:59 macbook kernel: nouveau 0000:01:00.0: timeout: 0x610300 = 0x80010c81 Apr 18 01:44:59 macbook kernel: nouveau 0000:01:00.0: timeout: 0x610300 = 0x80010c9d Apr 18 01:44:59 macbook kernel: nouveau 0000:01:00.0: timeout: 0x610300 = 0x80010081 Apr 18 01:45:01 macbook kernel: nouveau 0000:01:00.0: timeout: 0x610300 = 0x80010c85 Apr 18 01:45:04 macbook kernel: nouveau 0000:01:00.0: timeout: 0x610300 = 0x80010c9d
I'm now using kernel-2.6.29.1-70.fc11.x86_64 and xorg-x11-drv-nouveau-0.0.12-26.20090413git7100c06.fc11.x86_64 When the bug was first filed, I'll have been using whatever was current at the time. Should I go back and attempt to reconfirm that DVI was actually working with those versions?
Created attachment 340166 [details] tarball of debug output DVI output _is_ working with kernel 2.6.29.1-70.fc11.x86_64 and xorg-x11-drv-nouveau-0.0.12-29.20090417gitfa2f111.fc12.x86_64. Given that I was debugging at 2am I probably did something stupid like leaving the TV on the 'PC' input rather than switching it to 'HDMI2'. Small wonder I didn't get a DVI picture if I didn't ask the TV to show it to me. Attached is a tarball with drm.debug=1 output from various attempts. First I boot up, enable the DVI output, then switch to VGA. DVI works, VGA fails (and in fact when I connect the DVI connector again, I still get a picture. (Yes I remembered to tell the TV which I wanted to see this time, as I changed cables.) In the second directory, I do it the other way round. VGA first (which works), and then DVI (which gives me an oops). In the third directory, there's Xorg.0.log with --logverbose 255 from the nv driver as I successfully switch back and forth between DVI and VGA.
Thanks a lot. -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
This bug appears to have been reported against 'rawhide' during the Fedora 11 development cycle. Changing version to '11'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
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I'm still having problems when I go from DVI-D to VGA (actually DVI-A) output.
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