Hello, I've been experimenting with the asus-switcheroo module for a couple of days now but so far I haven't had much success in switching outputs. Any suggestions on what I should try next are welcome.
Below I will try to summarize everything I have tried and everything I have found out about the U35JC for future reference: This particular system is an Asus U35JC-RX040V: Geforce GT310 and i3-370M. I have disassembled the DSDT and found that I have the MXMX, MXDS and _DSM methods on both \_SB.PCI0.GFX0 and \_SB.PCI0.PEG1.GFX0. asus-switcheroo loads correctly with the messages: Found VGA device 0000:00:02.0 (\_SB_.PCI0.GFX0): IGD Found VGA device 0000:01:00.0 (\_SB_.PCI0.PEG1.GFX0): DIS Asus switcheroo: detected DSM switching method \_SB_.PCI0.PEG1.GFX0 handle and the debugfs directory is created. ON/OFF commands seem to be working, but whenever I try to switch to discrete my console image freezes (not a blank screen as I read in another mail on this list) but the system doesn't hang, I can blind type echo IGD > /sys/kernel/debug/vgaswitcheroo/switch to get my console back. If I try to start X when the screen is frozen it seems to be starting correctly and I have managed to turn off X again and blind switch back to IGD. The Xorg.log file then shows that the nouveau driver is used when I start X blind, i915 otherwise. I don't currently have an xorg.conf but looking at the log file it doesn't seem like I should need one. I read in another thread on this list that someone suggested testing with an external monitor, I've tried both switching when having a VGA monitor connected and connecting a monitor after switching to trigger something in the nouveau driver, but still nothing. I added a small printk to the nouveau driver to show when the reprobe is called and it shows that it is being called when I switch. Someone on this list suggested using the HDMI connector but I haven't got an HDMI capable monitor here but I will try this when I get back home next week if I don't find out anything before that. I've tried using dummy_client=1 to get the binary nvidia driver working but when I switch to DIS the whole system locks up, from this I haven't been able to switch back and X doesn't start up (with a valid xorg.conf). I also tried disabling modeswitch in the i915 driver but without modeswitch the driver doesn't register a switcheroo client (just like someone wrote on this list). The system is Gentoo Linux ~amd64 and the kernel is 2.6.38-gentoo3 which is based on 2.6.38.3 and contains just some small fixes for (irrelevant in this case) stuff like CIFS and XEN, see http://dev.gentoo.org/~mpagano/genpatches/patches-2.6.38-3.htm. I don't use a ramdrive but I boot up to a recovery shell ( init=/bin/bb ) to test this to make sure I don't have anything else loaded that can interfere with the switching. Any suggestions? Best regards, Joakim _______________________________________________ Mailing list: https://launchpad.net/~hybrid-graphics-linux Post to : hybrid-graphics-linux@lists.launchpad.net Unsubscribe : https://launchpad.net/~hybrid-graphics-linux More help : https://help.launchpad.net/ListHelp
