Since mine is a desktop system, and I don't need power-management or suspend, I make menuconfig and unset CONFIG_PM to disable power management. The subroutines in the stack trace: rpm_suspend is in ./base/power and pci_pm_runtime_resume pci_pm_runtime_suspend etc. are in drivers/pci/pci-driver.c and are built only if CONFIG_PM_RUNTIME is set.
Recompiled, rebooted. Its .. sort of better. X no longer hung in uninterruptible sleep. The /var/log/Xorg.0.log messages " [mi] EQ overflowing. Additional events will be discarded until..." went away too, because X can now run. Anyway, X seems to run now. Still getting junk like this though: Aug 31 00:02:56 blackspot kernel: [ 247.134014] nouveau E[ PFIFO][0000:01:06.0] DMA_PUSHER - ch 1 [Xorg[2061]] get 0x000102b0 put 0x000102c0 state 0x80000000 (err: INVALID_CMD) push 0x00000000 Aug 31 00:02:56 blackspot kernel: [ 247.134014] nouveau E[ PFIFO][0000:01:06.0] DMA_PUSHER - ch 1 [Xorg[2061]] get 0x000102b0 put 0x000102c0 state 0x80000000 (err: INVALID_CMD) push 0x00000000 Aug 31 00:03:11 blackspot kernel: [ 262.312013] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0001 [Xorg[2061]] Aug 31 00:03:11 blackspot kernel: [ 262.312013] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0001 [Xorg[2061]] Aug 31 00:03:11 blackspot kernel: [ 262.312013] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0001 [Xorg[2061]] Aug 31 00:03:26 blackspot kernel: [ 277.312016] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0001 [Xorg[2061]] Aug 31 00:03:26 blackspot kernel: [ 277.312016] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0001 [Xorg[2061]] Aug 31 00:03:26 blackspot kernel: [ 277.312016] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0001 [Xorg[2061]] Aug 31 00:03:26 blackspot kernel: [ 277.312790] nouveau E[ PFIFO][0000:01:06.0] CACHE_ERROR - ch 1 [Xorg[2061]] subc 0 mthd 0x1130 data 0x00000000 Aug 31 00:03:26 blackspot kernel: [ 277.312790] nouveau E[ PFIFO][0000:01:06.0] CACHE_ERROR - ch 1 [Xorg[2061]] subc 0 mthd 0x1130 data 0x00000000 Aug 31 00:03:26 blackspot kernel: [ 277.312790] nouveau E[ PFIFO][0000:01:06.0] CACHE_ERROR - ch 1 [Xorg[2061]] subc 0 mthd 0x1130 data 0x00000000 Aug 31 00:03:41 blackspot kernel: [ 292.312012] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0000 [Xorg[2061]] Aug 31 00:03:41 blackspot kernel: [ 292.312012] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0000 [Xorg[2061]] Aug 31 00:03:41 blackspot kernel: [ 292.312012] nouveau E[Xorg[2061]] failed to idle channel 0xcccc0000 [Xorg[2061]] Aug 31 00:03:41 blackspot kernel: [ 292.312027] nouveau E[ PFIFO][0000:01:06.0] CACHE_ERROR - ch 1 [Xorg[2061]] subc 0 mthd 0x1134 data 0x0046d1d7 Aug 31 00:03:41 blackspot kernel: [ 292.312027] nouveau E[ PFIFO][0000:01:06.0] CACHE_ERROR - ch 1 [Xorg[2061]] subc 0 mthd 0x1134 data 0x0046d1d7 so not all is well, not just yet. But for now X is up, for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1097178 Title: nouveau failed to idle channel 0xcccc0000 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-raring/+bug/1097178/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
