Re: NetBSD on modern laptops
On Sun, May 26, 2013 at 07:04:51PM -0500, David Young wrote: See if you can detach any of the devices after boot. Try, for example, 'drvctl -d puc0'. This worked for umodem, but not for puc0 or com2. I suppose puc0 can't be disabled because com2 is a child of it. On Sun, May 26, 2013 at 11:03:26PM +, Michael van Elst wrote: peter@xs4all.nl (Peter Bex) writes: Thanks for the hints! Is there any way to disable these devices (besides compiling a custom kernel of course), since I'm not currently using them? It would be great to use hibernation on this laptop. USB is a bit tricky unless you want to disable all of USB. The Lenovo notebooks I know can disable the broadband interfaces via ACPI, but to control this from NetBSD you need the thinkpad acpi driver enabled and the driver might not work because of the different methods used by the various Lenovo notebooks. There could be a BIOS option too. I was unable to find one. The puc driver can probably be disabled with userconf. I tried to disable umodem, puc and com, but they were all still detected. Cheers, Peter -- http://www.more-magic.net
Re: NetBSD on modern laptops
On Sun, May 26, 2013 at 10:35:13AM -0400, rod...@netbsd.org wrote: Here's the dmesg output of booting NetBSD on some newer laptops: http://pastebin.ca/2382629 http://pastebin.ca/2382631 http://pastebin.ca/2382632 Here's another, for a Lenovo X230: http://pastebin.ca/2382635 Everything works great except for the X driver which doesn't support accelleration (3d, but also 2d) for the Intel Ivy Bridge video card. I guess this requires additional kernel support. Hybernation probably works in principle, but it refuses to hibernate due to some drivers not supporting power management: # sysctl -w hw.acpi.sleep.state=3 hw.acpi.sleep.state: 0 - 3 # dmesg | tail -n 3 acpi0: entering state S3 Devices without power management support: puc0 com0 umodem0 umodem1 umodem2 acpi0: aborting suspend I don't know what kind of devices these are, exactly (I'm pretty sure I don't have three modems in it, and no old-fashioned COM port either), and if it's possible to disable them somehow. I tried putting a line with userconf disable umodem* in my /boot.cfg, but that did not disable the umodem driver. Overall I'm very happy with this laptop, and NetBSD runs great on it. The above things are minor annoyances. The video card not being completely supported is the biggest annoyance, but I can watch videos fine with mplayer's x11 video output driver, because the CPU is strong enough to render on its own. Cheers, Peter -- http://www.more-magic.net
Re: NetBSD on modern laptops
peter@xs4all.nl (Peter Bex) writes: On Sun, May 26, 2013 at 03:59:28PM +, Michael van Elst wrote: I don't know what kind of devices these are, exactly (I'm pretty sure I don't have three modems in it, and no old-fashioned COM port either), The 3 modems report as Lenovo H5321, that's a broadband interface (UMTS or similar). Your laptop probably has a slot for a SIM card. It does on the inside, I'm told ;) puc0/com0 is a serial port in the Intel chipset but the signals are probably only routed to an original Lenovo docking station. Thanks for the hints! Is there any way to disable these devices (besides compiling a custom kernel of course), since I'm not currently using them? It would be great to use hibernation on this laptop. USB is a bit tricky unless you want to disable all of USB. The Lenovo notebooks I know can disable the broadband interfaces via ACPI, but to control this from NetBSD you need the thinkpad acpi driver enabled and the driver might not work because of the different methods used by the various Lenovo notebooks. There could be a BIOS option too. The puc driver can probably be disabled with userconf.
Re: NetBSD on modern laptops
On Sun, May 26, 2013 at 07:02:46PM +0200, Peter Bex wrote: On Sun, May 26, 2013 at 03:59:28PM +, Michael van Elst wrote: I don't know what kind of devices these are, exactly (I'm pretty sure I don't have three modems in it, and no old-fashioned COM port either), The 3 modems report as Lenovo H5321, that's a broadband interface (UMTS or similar). Your laptop probably has a slot for a SIM card. It does on the inside, I'm told ;) puc0/com0 is a serial port in the Intel chipset but the signals are probably only routed to an original Lenovo docking station. Thanks for the hints! Is there any way to disable these devices (besides compiling a custom kernel of course), since I'm not currently using them? It would be great to use hibernation on this laptop. See if you can detach any of the devices after boot. Try, for example, 'drvctl -d puc0'. Dave -- David Young dyo...@pobox.comUrbana, IL(217) 721-9981
