You must mount the debugfs filesystem: # mount -t debugfs none /sys/kernel/debug/
To mount no every boot, add this line to the file "/etc/fstab": none /sys/kernel/debug debugfs defaults 0 0 -- Joaquín Ignacio Aramendía <[email protected]> El vie, 15-07-2011 a las 19:24 -0800, Leonardo Morelli escribió: > After reading https://help.ubuntu.com/community/HybridGraphics, > the vga_switcheroo thing is enabled: > > $ grep -i switcheroo /boot/config-2.6.35... > CONFIG_VGA_SWITCHEROO=y > > but the file /sys/kernel/debug/vgaswitcheroo/switch doesn't exist, nor even > the dir vgaswitcheroo... > (I'm running Kubuntu 10.10) > > Do I need to do something else to make it appear? > > > > -----Original Message----- > > From: [email protected] > > Sent: Fri, 15 Jul 2011 23:40:51 -0300 > > To: [email protected] > > Subject: Re: [Hybrid-graphics-linux] Bumblebee test on PCI ID: 10de:0a75 > > > > This "error" is spreading. Is related to the methods called to turn > > on/off the card and the kernel being able to recognize the card again > > once turned on. This means that either the card was not properly shut > > down/turned on, or the kernel does not recognize it properly. Try the > > vga-switcheroo switch, it is known to work on some machines with that > > problem. > > -- > > Joaquín Ignacio Aramendía <[email protected]> > > > > El vie, 15-07-2011 a las 11:48 -0800, Leonardo Morelli escribió: > >> Well, after installing Bumblebee and running optirun glxgears, I got the > >> "FATAL: Error inserting nvidia_current" :s > >> The acpi calls (on and off) are working. > >> > >> The thing is that after checking the /var/log/messages it says: > >> > >> NVRM: The NVIDIA GPU 0000:01:00.0 (PCI ID: 10de:0a75) installed in this > >> system is not supported by the 275.09.07 NVIDIA Linux graphics driver > >> release. > >> > >> but... > >> > >> when I see the /usr/share/doc/nvidia-current/README.txt.gz, this line > >> appears at the APPENDIX A: > >> GeForce 310M 0x0A75 C > >> > >> so, apparently, ID 0x0a75 is supported... > >> > >> Should I file a bug report? > >> > >> > >> Leo > >> > > ____________________________________________________________ > Send any screenshot to your friends in seconds... > Works in all emails, instant messengers, blogs, forums and social networks. > TRY IM TOOLPACK at http://www.imtoolpack.com/default.aspx?rc=if2 for FREE > > _______________________________________________ > Mailing list: https://launchpad.net/~hybrid-graphics-linux > Post to : [email protected] > Unsubscribe : https://launchpad.net/~hybrid-graphics-linux > More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~hybrid-graphics-linux Post to : [email protected] Unsubscribe : https://launchpad.net/~hybrid-graphics-linux More help : https://help.launchpad.net/ListHelp
