Re: [coreboot] Powersavings: 8W of difference between bios and coreboot

Hello Super interesting, I didn't know all that! Currently, I have only set in devicetree: device pci 00.0 on end # host bridge device pci 01.0 off end # NVidia device pci 02.0 on end # Intel and in my nvram options I have: hybrid_graphics_mode = Integrated Only I assumed that would be

Re: [coreboot] X220 Wifi Suspend

On 16-11-18 20:52:41, Nico Huber wrote: On 18.11.2016 18:08, Tyler Cipriani wrote: I recently flashed my Lenovo ThinkPad X220 with Coreboot and a SeaBIOS payload. I made an attempt to document the whole process[0]. Initially, everything seemed to work fine. I was able to boot to SeaBIOS which

Re: [coreboot] More experiments with disabling the ME

Hi Persmule, for the ME in the board status repo I used a ME image extracted from a Chromebook C710 BIOS dump, you can find the same dump somewhere in the web. Once we repair our spare X220 we can resume the work on ME and, hopefully, reduce further the firmware size. Nicola -- coreboot

Re: [coreboot] Removing Intel ME from the X230 coreboot

> The system did not poweroff after 30 min, but I would like to strip > down everything I can out of the intel ME. Your approach is > interesting. What is the minimal size you can presently get? > Hi, we didn't resized the resulting image, we kept it at 1.5 MB. > Using your python script on my

[coreboot] X220 Wifi Suspend

I recently flashed my Lenovo ThinkPad X220 with Coreboot and a SeaBIOS payload. I made an attempt to document the whole process[0]. Initially, everything seemed to work fine. I was able to boot to SeaBIOS which handed off to a Debian testing install (Stretch). Now that I've used this laptop a

Re: [coreboot] X220 Wifi Suspend

Hi, On 18.11.2016 18:08, Tyler Cipriani wrote: > I recently flashed my Lenovo ThinkPad X220 with Coreboot and a SeaBIOS > payload. I made an attempt to document the whole process[0]. > > Initially, everything seemed to work fine. I was able to boot to SeaBIOS > which handed off to a Debian

Re: [coreboot] Powersavings: 8W of difference between bios and coreboot

Quick update: Just having "device pci 01.0 on end" in the devicetree results in the following powertop measurements: 26W after boot, 21W with power savings applied, 20W at maximum power savings So just declaring the nvidia makes things much worse, even without really using the dGPU for anything.

Re: [coreboot] Powersavings: 8W of difference between bios and coreboot

Hi! BIOS: 11W Coreboot: 19W [...] Can you also measure the power consumption with the GPU enabled under the vendor firmware? and no, the NVidia GPU was not enabled in corebooy. Both results were on integrated GPU only Have you only disabled the nVidia GPU in devicetree.cb (that will only

Re: [coreboot] Powersavings: 8W of difference between bios and coreboot

Hi, On Fri, Nov 18, 2016 at 4:43 PM, Felix Held wrote: > Hi! > > > BIOS: 11W Coreboot: 19W [...] >> > Can you also measure the power consumption with the GPU enabled under the > vendor firmware? > > and no, the NVidia GPU was not enabled in corebooy. Both results

[coreboot] New Defects reported by Coverity Scan for coreboot

Hi, Please find the latest report on new defect(s) introduced to coreboot found with Coverity Scan. 2 new defect(s) introduced to coreboot found with Coverity Scan. 2 defect(s), reported by Coverity Scan earlier, were marked fixed in the recent build analyzed by Coverity Scan. New defect(s)

Re: [coreboot] Powersavings: 8W of difference between bios and coreboot

Hi! I don't know if Charlotte has added the ID of the dGPU to src/drivers/lenovo/hybrid_graphics.c. Does the dGPU consume power after hybrid_graphics.c disable the dGPU? OPTIMUS_ENABLE is a PCH GPIO and controls the muxes that select if the internal display is connected to the iGPU or the