I have here a Sony Vaio Z laptop. It's a fairly new model with switchable graphics: it has both a GeForce and an Intel integrated graphics chipset. I can configure the BIOS so I can enable only one card during any given boot, using the selector switch on the laptop. At this point it ought to be just like dealing with a single adapter for the OS, so we should be able to cope with driving either adapter using nouveau or intel (respectively). In fact, neither work. Here's the report for the NVIDIA adapter. As soon as nouveau is loaded with KMS enabled, it briefly turns off the screen entirely, then the backlight turns on again, but the display is entirely blank. (Still blank if X attempts to start up). The system is still running at some level, as pressing the power button results in a clean shutdown. The NVIDIA proprietary driver works fine with the same hardware setup. Am attaching /var/log/messages portion while attempting various tests on this. Timing notes: All boots are to runlevel 3 with no graphics-related modules loaded, unless otherwise noted. 17:07.47 - boot complete ~17:08 - modprobe nouveau - screen blanks, backlight turned off briefly then back on, screen still blank (clean shutdown via power button) 17:09.55 - second boot complete ~17:10.10 - modprobe nouveau modeset=0 - loads, screen stays unchanged (clean shutdown) (power off, battery yanked) 17:12:17 - third boot complete ~17:12.40 - modprobe nvidia ~17:13 - modprobe -r nvidia ~17:13.20 - modprobe nouveau - same as 17:08 (clean shutdown via power button) (power off, battery yanked) 17:15.28 - fourth boot complete (graphical with nvidia driver) 17:15.48 - telinit 3 17:16:04 - modprobe -r nvidia 17:16:15 - modprobe nouveau - same as 17:08 (clean shutdown via power button) 17:19.49 - fifth boot complete (runlevel 3, drm.debug=15) 17:20.20 - modprobe nouveau - same as 17:08 (clean shutdown via power button)
Created attachment 417072 [details] relevant /var/log/messages section (refer to timing notes in report)
Final note - this happens with both 2.6.34-2.fc14.x86_64 and 2.6.33.4-95.fc13.x86_64 . -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
With 2.6.33.4-112.fc13, this is not fixed. However, I have a reproducible workaround: * Boot with proprietary NVIDIA driver enabled * Suspend, then resume * Reboot to runlevel 3 * modprobe nouveau and that works. I will attach the /var/log/messages output from this 'success' case, with drm.debug=15 . -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
Created attachment 417113 [details] 'success' (with nvidia workaround) /var/log/messages segment
just a correction to the above, that seems not to be a reliable 'success' case, it was just a couple of lucky times. http://fpaste.org/097X/ is the verbose dmesg from the failure case. -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
Ben suggested this was fixed in F14 and that indeed appears to be the case; I just updated the system in question to current F14 and nouveau works pretty well. Are you planning to backport the fix to F13 at all, Ben, or is it a case of 'upgrade to F14 if you hit this bug'? -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
I can backport this fix to F13, and will do so since this bug is for F13.
cool, thanks. when you've done that i will lie and say i've tested the fix, since I ain't downgrading the thing again =)
Is this issue related to 590960?
(In reply to comment #9) > Is this issue related to 590960? Unlikely.
(In reply to comment #8) > cool, thanks. when you've done that i will lie and say i've tested the fix, > since I ain't downgrading the thing again =) Ah btw, I've done this: http://koji.fedoraproject.org/koji/buildinfo?buildID=191473
*** Bug 610496 has been marked as a duplicate of this bug. ***
I have fedora 13 to test this. Update result ASAP.
kernel-2.6.34.6-47.fc13 has been submitted as an update for Fedora 13. https://admin.fedoraproject.org/updates/kernel-2.6.34.6-47.fc13
Display is working properly with kernel-2.6.34.5-44.fc13.x86_64 --- cat /var/log/Xorg.0.log|grep nouveau [ 13.431] (==) Matched nouveau as autoconfigured driver 0 [ 13.431] (II) LoadModule: "nouveau" [ 13.433] (II) Loading /usr/lib64/xorg/modules/drivers/nouveau_drv.so [ 13.433] (II) Module nouveau: vendor="X.Org Foundation" [ 13.435] (II) [drm] nouveau interface version: 0.0.16 ---
kernel-2.6.34.6-47.fc13 has been pushed to the Fedora 13 stable repository. If problems still persist, please make note of it in this bug report.