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Re: ASUS 1215N: how does vga_switcheroo work?

 

Hi to all, I have some good news about vga_switcheroo and 1215n.

I try to make a summary of my test.

I use the 2.6.38 kernel from kernel.org.

I boot linux in runlevel 3 and by default my kernel loades module i915 for
intel integrated graphic card.
Then when I load the module nouveau via modprobe in /var/log/messages file I
see cleary that vga_switcheroo is enabled..
I connect HDMI port to a tv..
At this point I try to switch video cards and it happens that a netbook's
flat panel become gray color as the console goes on tv, so I conclude that
the nvidia card is actually working.
At this point I start the graphical session with the command: init 5
and X server doesn't start automatically because it needs nvidia
configuration in xorg.conf.
So I make a basic configuration and the login screen is prompted to me on
the tv, via hdmi.

At this point, however, I need your help to better understand how to use
flat panel of netbook with the disceret graphic card.
In fact, if I do the test without connecting the HDMI cable I get nothing on
flat panel ofnetbooks.

Any suggestions?
Thanks to all







On Tue, Apr 12, 2011 at 4:40 PM, Hans Persson <perssonhans78@xxxxxxxxx>wrote:

> Hi,
>
> As far as I understand it is not possible to use the nvidia chip on a
> Optimus computer in Linux at the moment.
> What is possible and what i just did on my ASUS 1215N is to switch off the
> nvidia chip to save power.
>
> I'll paste what I just did below.
>
> Cheers
> Hans Persson
>
> ___________________________________________________
>
>
> Thanks
>
> That did the trick, now it shuts down nicely.
>
> Regards,
> Hans
> - Dölj citerad text -
>
>
> 2011/4/4 Tomasz Famulski <famulski@xxxxxxxxx>
> Try to add line
>
> blacklist nouveau
>
> to /etc/modprobe.d/blacklist.conf
>
> Regards,
> Tomasz
>
> On Mon, Apr 4, 2011 at 5:13 PM, Albert Vilella <avilella@xxxxxxxxx> wrote:
> > fwd to the mailing list.
> >
> > On Mon, Apr 4, 2011 at 4:10 PM, Hans Persson <perssonhans78@xxxxxxxxx>
> wrote:
> >> Hi Albert,
> >>
> >> Yes loading and running it works, as seen in attatched file. My power
> >> consumption is down by apporx. 4 W.
> >>
> >> But my computer will not shut down after switching of the NVidia chip.
> >> I guess it's because my computer still loads the nv driver?!
> >> I still don't know how to stop this driver from loading.
> >>
> >> There are some error messages while trying to shut down, which I can not
> >> find in dmesg, so I'm afraid I can not send them to you.
> >>
> >>
> >> Cheers
> >> Hans
> >>
> >>
> >> 2011/4/3 Albert Vilella <avilella@xxxxxxxxx>
> >>>
> >>> Hi Hans,
> >>>
> >>> Can you check if this works for your ASUS 1215N?
> >>>
> >>> https://lists.launchpad.net/hybrid-graphics-linux/msg00254.html
> >>>
> >>> On Fri, Apr 1, 2011 at 4:03 PM, Hans Persson <perssonhans78@xxxxxxxxx>
> >>> wrote:
> >>> > Hi all,
> >>> >
> >>> > I have a ASUS 1215N as follows:
> >>> >
> >>> > 1215N
> >>> > x.x
> >>> > 00:02.0 VGA compatible controller [0300]: Intel Corporation N10
> Family
> >>> > Integrated Graphics Controller [8086:a001] (rev 02) (prog-if 00 [VGA
> >>> > controller])
> >>> > 05:00.0 VGA compatible controller [0300]: nVidia Corporation Device
> >>> > [10de:0a76] (rev a2) (prog-if 00 [VGA controller])
> >>> >
> >>> > I hope I will be able to help with testing and debugging.
> >>> >
> >>> > Regards
> >>> > Hans Persson
> >>> >
>
> 2011/4/11 Fra B <frab1215@xxxxxxxxx>
>
>> Hi to everyone,
>> I've got an Asus 1215N.
>> I use Mandriva 2010.2 x86_64.
>>
>> Recently I've compiled kernel 2.6.38 from kernel.org.
>>
>> In my linux distribution i915 and nouveau kernel module are blacklisted,
>> and I've uncomment this 2 line in /etc/modprobe.d/blacklist-mdv.
>> So I can load both this 2 modules:
>>
>> # lsmod | grep i915
>> i915                  487045  2
>> drm_kms_helper         34769  2 nouveau,i915
>> drm                   215732  5 nouveau,ttm,i915,drm_kms_helper
>> i2c_algo_bit            5705  2 nouveau,i915
>> button                  6065  2 nouveau,i915
>> i2c_core               30375  7
>> nouveau,videodev,i2c_i801,i915,drm_kms_helper,drm,i2c_algo_bit
>> video                  12802  2 nouveau,i915
>>
>> # lsmod | grep nouveau
>> nouveau               675181  0
>> ttm                    66834  1 nouveau
>> drm_kms_helper         34769  2 nouveau,i915
>> drm                   215732  5 nouveau,ttm,i915,drm_kms_helper
>> i2c_algo_bit            5705  2 nouveau,i915
>> button                  6065  2 nouveau,i915
>> i2c_core               30375  7
>> nouveau,videodev,i2c_i801,i915,drm_kms_helper,drm,i2c_algo_bit
>> video                  12802  2 nouveau,i915
>>
>>
>> I've this in /etc/fstab:
>> # cat /etc/fstab | grep debugfs
>> none            /sys/kernel/debug debugfs defaults 0 0
>>
>>
>>
>> When both i915 and nouveau are loaded in the kernel I can see this in
>> /var/log/messages :
>>
>> kernel: VGA switcheroo: detected DSM switching method \_SB_.PCI0.P0P4.GFX0
>> handle
>> kernel: nouveau 0000:04:00.0: power state changed by ACPI to D0
>> kernel: nouveau 0000:04:00.0: power state changed by ACPI to D0
>> kernel: nouveau 0000:04:00.0: enabling device (0000 -> 0003)
>> kernel: nouveau 0000:04:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
>> kernel: [drm] nouveau 0000:04:00.0: Detected an NV50 generation card
>> (0x0a8b00b1)
>> kernel: vga_switcheroo: enabled
>> kernel: [drm] nouveau 0000:04:00.0: Attempting to load BIOS image from
>> PRAMIN
>> kernel: [drm] nouveau 0000:04:00.0: ... BIOS signature not found
>> kernel: [drm] nouveau 0000:04:00.0: Attempting to load BIOS image from
>> PROM
>> kernel: [drm] nouveau 0000:04:00.0: ... BIOS signature not found
>> kernel: [drm] nouveau 0000:04:00.0: Attempting to load BIOS image from
>> PCIROM
>> kernel: nouveau 0000:04:00.0: Invalid ROM contents
>> kernel: [drm] nouveau 0000:04:00.0: ... BIOS signature not found
>> kernel: [drm] nouveau 0000:04:00.0: Attempting to load BIOS image from
>> ACPI
>> kernel: [drm] nouveau 0000:04:00.0: ... appears to be valid
>> kernel: [drm] nouveau 0000:04:00.0: BIT BIOS found
>> kernel: [drm] nouveau 0000:04:00.0: Bios version 70.18.55.00
>> kernel: [drm] nouveau 0000:04:00.0: Pointer to BIT loadval table invalid
>> kernel: [drm] nouveau 0000:04:00.0: TMDS table version 2.0
>> kernel: [drm] nouveau 0000:04:00.0: Found Display Configuration Block
>> version 4.0
>> kernel: [drm] nouveau 0000:04:00.0: Raw DCB entry 0: 02010300 00000000
>> kernel: [drm] nouveau 0000:04:00.0: Raw DCB entry 1: 02021362 00020010
>> kernel: [drm] nouveau 0000:04:00.0: Raw DCB entry 2: 0000000e 00000000
>> kernel: [drm] nouveau 0000:04:00.0: DCB connector table: VHER 0x40 5 16 4
>> kernel: [drm] nouveau 0000:04:00.0:   0: 0x00000000: type 0x00 idx 0 tag
>> 0xff
>> kernel: [drm] nouveau 0000:04:00.0:   1: 0x00002161: type 0x61 idx 1 tag
>> 0x08
>> kernel: [drm] nouveau 0000:04:00.0: Adaptor not initialised, running VBIOS
>> init tables.
>> kernel: [drm] nouveau 0000:04:00.0: Parsing VBIOS init table 0 at offset
>> 0xDE31
>> kernel: [drm] nouveau 0000:04:00.0: 0xDD98: i2c wr fail: -6
>> kernel: [drm] nouveau 0000:04:00.0: Parsing VBIOS init table 1 at offset
>> 0xE2DC
>> kernel: [drm] nouveau 0000:04:00.0: Parsing VBIOS init table 2 at offset
>> 0xEE88
>> kernel: [drm] nouveau 0000:04:00.0: Parsing VBIOS init table 3 at offset
>> 0xEEA1
>> kernel: [drm] nouveau 0000:04:00.0: Parsing VBIOS init table 4 at offset
>> 0xEF88
>> kernel: [drm] nouveau 0000:04:00.0: Parsing VBIOS init table at offset
>> 0xEFED
>> kernel: [drm] nouveau 0000:04:00.0: 3 available performance level(s)
>> kernel: [drm] nouveau 0000:04:00.0: 0: memory 135MHz core 135MHz shader
>> 270MHz voltage 850mV
>> kernel: [drm] nouveau 0000:04:00.0: 1: memory 405MHz core 405MHz shader
>> 810MHz voltage 850mV
>> kernel: [drm] nouveau 0000:04:00.0: 3: memory 790MHz core 475MHz shader
>> 1092MHz voltage 900mV
>> kernel: [drm] nouveau 0000:04:00.0: c: memory 950MHz core 550MHz shader
>> 200MHz voltage 850mV
>> kernel: [TTM] Zone  kernel: Available graphics memory: 1024824 kiB.
>> kernel: [TTM] Initializing pool allocator.
>> kernel: [drm] nouveau 0000:04:00.0: Detected 512MiB VRAM
>> kernel: [drm] nouveau 0000:04:00.0: 512 MiB GART (aperture)
>> kernel: [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
>> kernel: [drm] No driver support for vblank timestamp query.
>> kernel: [drm] nouveau 0000:04:00.0: ACPI backlight interface available,
>> not registering our own
>> kernel: [drm] nouveau 0000:04:00.0: allocated 1024x768 fb: 0x60000000, bo
>> ffff8800519ac400
>> kernel: fb1: nouveaufb frame buffer device
>> kernel: [drm] Initialized nouveau 0.0.16 20090420 for 0000:04:00.0 on
>> minor 1
>>
>>
>> I've this in debug fs:
>> # cat /sys/kernel/debug/vgaswitcheroo/switch
>> 0:IGD:+:Pwr:0000:00:02.0
>> 1:DIS: :Pwr:0000:04:00.0
>>
>>
>> so vga_switcheroo seems to be enabled, but if I try to switch whit this
>> command:
>> # echo "DIS" > /sys/kernel/debug/vgaswitcheroo/switch
>> my screen goes in a gray color state, it doesn't off, but I can't interact
>> with the system
>>  and I need to poweroff pc with power button.
>> I've see this in messages:
>> kernel: fbcon: Remapping primary device, fb1, to tty 1-63
>> kernel: i915: switched off
>>
>>
>> Any suggestions to make other steps to enable the nvidia card? What I can
>> do now?
>> Thanks
>>
>> _______________________________________________
>> Mailing list: https://launchpad.net/~hybrid-graphics-linux
>> Post to     : hybrid-graphics-linux@xxxxxxxxxxxxxxxxxxx
>> Unsubscribe : https://launchpad.net/~hybrid-graphics-linux
>> More help   : https://help.launchpad.net/ListHelp
>>
>>
>

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