Re: [QUERY] Power consumption on a 2013 MBP

2014-01-07 Thread Pavel Machek
On Tue 2014-01-07 16:03:00, Ramkumar Ramachandra wrote: > Ramkumar Ramachandra wrote: > > My system freezes if I remove modules like usbhci, ahci, ehci_hcd. > > Correction: my input devices (keyboard, trackpad) depend on usbhci, > ehci_hcd, while libata and my hard disk drivers depend on ahci; > t

Re: [QUERY] Power consumption on a 2013 MBP

2014-01-07 Thread Ramkumar Ramachandra
Ramkumar Ramachandra wrote: > My system freezes if I remove modules like usbhci, ahci, ehci_hcd. Correction: my input devices (keyboard, trackpad) depend on usbhci, ehci_hcd, while libata and my hard disk drivers depend on ahci; there's no way I can do without them. I'm trying to get VGA switchero

Re: [QUERY] Power consumption on a 2013 MBP

2014-01-06 Thread Pavel Machek
On Tue 2014-01-07 04:35:04, Ramkumar Ramachandra wrote: > Pavel Machek wrote: > > "Should not". Exactly. Your machine should not consume 20W. It does, > > so try rmmoding USB modules, and probably AHCI... > > My system freezes if I remove modules like usbhci, ahci, ehci_hcd. Umm. Try harder. Like

Re: [QUERY] Power consumption on a 2013 MBP

2014-01-06 Thread Ramkumar Ramachandra
Pavel Machek wrote: > "Should not". Exactly. Your machine should not consume 20W. It does, > so try rmmoding USB modules, and probably AHCI... My system freezes if I remove modules like usbhci, ahci, ehci_hcd. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body o

Re: [QUERY] Power consumption on a 2013 MBP

2014-01-06 Thread Pavel Machek
On Tue 2014-01-07 02:47:18, Ramkumar Ramachandra wrote: > Pavel Machek wrote: > > USB usually does that. Try rmmoding hcd(s). If that does not help, try > > removing other modules. Oh and try without that broadcom-wl driver. > > Unused modules shouldn't consume so much power, no? I suspected > bro

Re: [QUERY] Power consumption on a 2013 MBP

2014-01-06 Thread Ramkumar Ramachandra
Pavel Machek wrote: > USB usually does that. Try rmmoding hcd(s). If that does not help, try > removing other modules. Oh and try without that broadcom-wl driver. Unused modules shouldn't consume so much power, no? I suspected broadcom-wl, but removing it doesn't help. Instead of shooting in the d

Re: [QUERY] Power consumption on a 2013 MBP

2014-01-06 Thread Pavel Machek
On Tue 2013-12-31 15:24:00, Ramkumar Ramachandra wrote: > Hi, > > On a 2013 Macbook Pro, Linux consumes 21W of power while OS X consumes > just 9W. I found this very disturbing; Linux more than halves the > battery life of the device. I checked to see that I wasn't running any > especially power-h

[QUERY] Power consumption on a 2013 MBP

2013-12-31 Thread Ramkumar Ramachandra
Hi, On a 2013 Macbook Pro, Linux consumes 21W of power while OS X consumes just 9W. I found this very disturbing; Linux more than halves the battery life of the device. I checked to see that I wasn't running any especially power-hungry applications or drivers (using powertop). I'm using just one p