Hi :) I tried to switch back to nv for the kernel-rt, but it failed. GDM doesn't start anymore. [root@archlinux spinymouse]# pacman -Rss xf86-video-nouveau Targets (1): xf86-video-nouveau-1.0.2-1 [root@archlinux spinymouse]# rm /etc/X11/xorg.conf [root@archlinux spinymouse]# cp /etc/X11/xorg.conf.nv /etc/X11/xorg.conf [root@archlinux spinymouse]# pacman -Rdds nouveau-dri libgl Targets (3): libdrm-nouveau1-2.4.33-1 libgl-8.0.4-3 nouveau-dri-8.0.4-2 [root@archlinux spinymouse]# shutdown -r now GDM won't start anymore, I booted another linux and continued with: spinymouse@precise:~$ sudo sed -i 's/options nouveau modeset=1/#options nouveau modeset=1/' /mnt/archlinux/etc/modprobe.d/ sed: can't read /mnt/archlinux/etc/modprobe.d/modprobe.conf: No such file or directory spinymouse@precise:~$ ls /mnt/archlinux/etc/modprobe.d/modprobe.conf ls: cannot access /mnt/archlinux/etc/modprobe.d/modprobe.conf: No such file or directory spinymouse@precise:~$ grep nouveau /mnt/archlinux/etc/mkinitcpio.conf spinymouse@precise:~$ Useless since there's nothing to do. I didn't switch to systemd. spinymouse@precise:~$ grep \(EE /mnt/archlinux/var/log/Xorg.0.log (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 17.176] (EE) Failed to load module "glx" (module does not exist, 0) [ 17.178] (EE) Failed to load module "v4l" (module does not exist, 0) [ 17.247] (EE) NV: The PCI device 0x10de01d3 (GeForce 7300 SE) at 01@00:00:0 has a kernel module claiming it. [ 17.247] (EE) NV: This driver cannot operate until it has been unloaded. [ 17.248] (EE) No devices detected. Any hints are welcome. Regards, Ralf PS: I did jitter tests using the nouveau driver, but forgot to take care about the CPU frequency scaling. I don't know if it was set up to performance, so I need to do the tests again. IOW first I'll install nouveau again, but I also want to be able to switch back to nv. This is an older test: http://www.digipedia.pl/usenet/thread/11091/63/ No Xruns! As long as peak is > 1ms, it's still > 0.2ms, everything should be ok for my taste, so even while the current tests are worse compared with the old tests, peak jitter perhaps still is inaudible, even for me and I'm very sensitive to timing issues, phasing and things like that. However, it's strange to get Xruns when doing a MIDI latency test, this seems to be a serious issue. And now today's test: [spinymouse@archlinux ~]$ uname -r 3.4.4-rt14-1-rt [spinymouse@archlinux ~]$ hdspmixer Card 0: RME AIO S/N 0x579bcc at 0xfdbf0000, irq 18 Card 1: TerraTec EWX24/96 at 0xbf00, irq 20 Card 2: TerraTec EWX24/96 at 0xbb00, irq 21 [spinymouse@archlinux ~]$ sudo chgrp audio /dev/hpet [spinymouse@archlinux ~]$ sudo chmod g+rw /dev/hpet [spinymouse@archlinux ~]$ sudo modprobe snd-hrtimer [spinymouse@archlinux ~]$ /etc/rc.d/rtirq status | grep n 281 FF 85 - 125 0.0 S irq/18-snd_hdsp 283 FF 80 - 120 0.0 S irq/20-snd_ice1 304 FF 79 - 119 0.0 S irq/21-snd_ice1 330 FF 50 - 90 0.0 S irq/18-nouveau [spinymouse@archlinux ~]$ jackd --sync -Xalsarawmidi -dalsa -r48000 -p256 jackdmp 1.9.8 JackALSARawMidiDriver::Attach - input port registered (alias='system:1-1 HDSPMx579bcc MIDI 1 1 in'). JackALSARawMidiDriver::Attach - input port registered (alias='system:2-1 TerraTec EWX24/96 MIDI 1 in'). JackALSARawMidiDriver::Attach - output port registered (alias='system:1-1 HDSPMx579bcc MIDI 1 1 out'). JackALSARawMidiDriver::Attach - output port registered (alias='system:2-1 TerraTec EWX24/96 MIDI 1 out'). [spinymouse@archlinux ~]$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:1-1 HDSPMx579bcc MIDI 1 1 out" "system:1-1 HDSPMx579bcc MIDI 1 1 in" Waiting for connections ... Waiting for test completion ... Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.72 ms (562.26 frames) Lowest latency: 11.67 ms (560 frames) Highest latency: 11.84 ms (568 frames) Peak MIDI jitter: 0.17 ms (8 frames) Average MIDI jitter: 0.03 ms (0.23 frames) Jitter Plot: 0.0 - 0.1 ms: 8185 0.1 - 0.2 ms: 2 > 10 ms: 5 Latency Plot: 11.6 - 11.7 ms: 1068 11.7 - 11.8 ms: 7109 11.8 - 11.9 ms: 10 > 21.6 ms: 5 Messages sent: 8192 Messages received: 8192 Xruns: 5 [spinymouse@archlinux ~]$ jack_midi_latency_test -m 3 -s 8192 -t 5 "system:2-1 TerraTec EWX24/96 MIDI 1 out" "system:2-1 TerraTec EWX24/96 MIDI 1 in" Waiting for connections ... Waiting for test completion ... Reported out-port latency: 5.33-5.33 ms (256-256 frames) Reported in-port latency: 5.33-5.33 ms (256-256 frames) Average latency: 11.72 ms (562.71 frames) Lowest latency: 11.69 ms (561 frames) Highest latency: 11.81 ms (567 frames) Peak MIDI jitter: 0.12 ms (6 frames) Average MIDI jitter: 0.01 ms (0.09 frames) Jitter Plot: 0.0 - 0.1 ms: 8192 Latency Plot: 11.6 - 11.7 ms: 1 11.7 - 11.8 ms: 8187 11.8 - 11.9 ms: 4 Messages sent: 8192 Messages received: 8192
