Does HM55 have switchable graaphics?

may i know your laptop model and which software are you using?

 

It's one of the poster children of Intel Hybrid Power notebooks (in my signature). The software is just the drivers that came with the laptop.

Are you sure that your laptop has the GM45 chipset, and not the PM45 chipset? Is an Intel GPU accessible from Device Manager on your laptop?

 

Iìm not a genie, but i'm sure of my component...even cpuz and everest say gm45/gm47, acer spech says gm45
my is ich9...

 

i can't find a working support page for drivers download of your laptop...can you send a link to me?

 

Right now I'm using these: Drivers and Downloads

They are Intel/nVidia. Since you have an ATi-AMD GPU, you can probably try look for TimelineX Intel/ATi-AMD drivers.

 

i'm sorry but i'm unable to find something working for me...i think igp must to be activated by bios but i've not this option...maybe kizwan can enable this feature

 

Please open new thread for your chipset. This thread is only for people with HM55 chipset & Intel Core processor (i3, i5 & i7).

 

i was wondering, does lenovo y560 (i3 version) have switchable graphic or switchable proc?

 

Hi nando4,

I was able to obtain Acer Aspire 5740 Series notebook schematic.

As you can see (marked with red box), there are three switches which I believe are mux chips (multiplexers). It is a little bit different compared to 5820TG mux chip but I believe all three are mux chips. What do you think? If it is true, do you have any idea how to "enable" the Intel HD Graphics? The "Graphic Mode" menu in BIOS already set to "Switchable" by default but this menu is hidden. The other option is "Discrete". The only explanation it doesn't visible are either such function is not supported on hardware level (already proved wrong by above schematic) or a control implemented in BIOS to disabled it. If such control exist, it did very good job because the Intel HD Graphics is completely undetectable. I already try to trace it but so far unsuccessful.

 

Well you have a picture showing three muxes. Are they on the systemboard? If so, identify the mux select lines and see if one goes back to the PCH. If it's high impedance, then it has been disconnected. In which case see if the circuitboard has had a cut pad where you can connect it. That's usually how manufacturers disable features.

If the PCH is connected to the mux, then the bios has locked out the Intel HD graphics requiring finding where it's been disabled. See here for an idea of what's involved, which is where I am stuck as well.

If you're really adventurous, could try to flash an Acer system with similar specs but with switchable graphics. Just be sure if it has an EC component that you merge your bios's EC into it instead. I managed to do that with a C36 bios which only ever had switchable graphics, on the C41, finding it even enabled an extra pci-e port by default. Still no switchable graphics

 

Yes, the i3 and i5 versions are switchable, though personally I'd stay away from it, I had one (which I returned after it spent 30 of it's first 35 days at the repair depot) before I got my Dell, and the display and build quality of the Y560 left a lot to be desired. Not everybody hates it though, go over to the Lenovo board and read around before you commit to purchase.

 

I'll have to ask anybody (voluntarily) who owned Aspire 5740G to trace the mux select lines and see if one goes back to the PCH.

I'm adventurous but I do not owned Aspire 5740G to test this. On Aspire 5740G BIOS, there is a hidden "Intel" section. One of the menu is "PCH Control Sub-Menu". In it there is a "PCI Express Control Sub-Menu" where you can enable/disable PCI express root port. Do you think the key to enable the Intel HD Graphics is in this hidden sub-menu?


I'll try ask somebody to try enable any PCI express root port & see whether it make any difference or not. I think I have the appropriate candidate.

 

@kizwan: Even if I can't find any schematic too, I'm pretty sure that MUX select is controlled by GPIO pin 52.
Ok, I only guess it, but I did some hacking in BIOS and ACPI code and found some clues.
Also, if you connect external screen using VGA (D-sub) connector and change GPIO 52 from default 0 to 1 video signal goes off.
However, it looks like it has no effect on LVSD and HDMI (I have a theory it's because HDMI and LVDS are digital whereas D-sub is analog interface).

 

I believe GPIO pin 52 only control the connection between the ATI & the mux (RGB CRT line) or between the mux & CRT. As you can see in the schematic, CRT (VGA), LVDS (internal screen) & HDMI connections are controlled by three separate mux. So I think it controller by three different GPIO pins. But these are only lines which only connected the GPU with output. It doesn't explain why the Intel HD is not detected. On my Asus, the Intel HD is connected to a PCI bus, a bit different with discrete GPU which is connected to PCI express root port. I don't know much about PCI bus, so I don't know whether is there any different between those two bus or not. Anyway, the six million dollar question is, does enabling the extra PCI express root port will enable the PCI bus where the Intel HD is connected to?

 

I'll be an happy candidate if you want to enable this feature on 5738zg...
Ok i'll open a new thread!

 

But this item is included in notebooks that can switch the schedule? Maybe it is just in it?
Photograph of the motherboard I have not found, but it is a block diagram. I do not know whether or not to?

 

Who can advise on how software can emulate a working computer with the right firmware BIOS?
I want to see an expanded version of the BIOS settings for different laptops. What items are enabled by default.

 

I had a CQ41 schematic that indicated it had switchable graphics. What I learnt was that the switchable graphics LA-4107PA systemboard was bundled into a HP DV4-2000. The non-switchable graphics systemboard went into a Compaq CQ41.

Visual inspection comparing the two found the CQ41 systemboard had a row of BGA pads near the LVDS/VGA connector where the DV4 had a mux chip. So there was no point to try to hack the bios since the systemboard did not have the hardware to make switchable graphics possible.

I'm sure HP saved $0.2 by not including the mux. I'm sure the systemboard It was probably easier for them to do that then to program the BIOS to run the mux in a fixed non-switchable graphics position.

 

My thoughts exactly. I believe the same scenario applied to Acer Aspire 5740G. Maybe on testing/development phase, it does have switchable graphics. However, because of the driver/software issue at that time, Acer decided not to include switchable graphic on their final product. They just produced same motherboard but with less components. It is much easier for them to do that than re-programming BIOS.

 

And someone who disassemble the notebook can not know if these pieces have been removed?

 

then if anyone can add the mux to the device then it would be switchable?

 

You offer to do it yourself a soldering iron?
Is it possible?

 

soldering is not a problem as long as u have the right paths and the right pieces

 

today i tryed to install new ubuntu 10.10 and it failed because its trying to switch on my intel HD which does not have any memory allocation BUT its shows this

 

YouTube - ubuntu graphic bug (intel HD)

ubuntu showing windows 7 screen

 

@oneb1t, can you try boot in verbose mode? See which GPU is detected. Maybe it just doesn't support your Nvidia GPU, that is why the display look like that.

 

no 10.04 working
in 10.10 kernel have switchable graphic support

 

Can you boot in verbose mode? If possible, I want to see when it detect the Intel HD Graphics. As far as I know Asus G51JX doesn't have switchable graphics. Because of this, it is odd that Ubuntu can detect the Intel HD Graphics while windows can't.

 

no same problem in verbose mode

 

I actually want to see the verbose message. Anyway, never mind. Look like Nvidia GTS 360M doesn't work with latest version of Ubuntu. I doubt Intel HD is caused of the problem since it is not available on your notebook. You should file a bug report to Ubuntu support.

 

yes problem is GTS 360M not intel GMA HD :-(

 

will there be a work around to make users who have core ix proc. and hm5x mobo able to switch between discrete and igp ?
ati says that all hd 4x and above families are capable of doing it , and the ball is at the ground of the manufacturers

 

Hello everyone. This is my first post on your forum.
I have a laptop 7740G and am also interested in switching graphics.

After reading several posts on this topic in different threads makes me question, why did not compare the bios laptop with switchable graphics with a laptop who does not have this feature .... or download the bios from a similar hardware Aspire 5820T and flash it to 5740g?

(sorry for my en)

 

If it was this simple, somebody would've done this years ago. Apparently, we don't have access to the most current manufacturer BIOS editor to fully enable switchable graphics on older laptops. This is not as simple as comparing 2 different BIOS right next to each. Also, not all HM55 laptops have the same BIOS. Some have InsydeH2O BIOS, while others have the Phoenix BIOS, etc. They are not the same thing.

Flashing a random BIOS for any laptop will most likely brick it and make it inoperable. This is common sense.

 

Hi everyone. I just bought an HP Pavillion dv6-3181ss: i7-720qm / HM55 chipset / ATI Mobility Radeon HD 5650 (1Gb).
Can anyone tell me if with these features can get a "switcheable graphics" and where i can find a guide to do this?

 

DV6-3xxx does have switchable graphics, but you need an i3/i5/i7 Arrandale CPU with onboard IGP to be able to use it. Your Clarksfield i7 doesn't have an IGP onboard.

 

Thanks Nando4 for your answer. There is no upgrade or hac**ing way to do this?

Im obssesed with the autonomy of the battery and the temperature of the laptop. I mean, Do you think is a bad choise this i7-720mq compared with for example an HP dv6 3153ss : i5-460M with switcheable graphics?

Thank you again!

 

I just bought a HP G62-b70SQ laptop ( specs here) and I am wondering if it has switchable graphics. According to the specifications I should be able to enable switchable graphics, but I don't see any Intel adapters. Can anyone please clarify? Thanks.

 

Hi bkraptor, first of all you have to download all the updates available in the hp site for your HP G62-b70SQ laptop. Maybe the BIOS is out of date. Make sure your ATI is updated to.

I was looking at Intel site and both the chipset and the micro has the integrated and the dedicated graphics feature. Look this link: Compare Intel® Products,

Tell us how it works!

 

The weird thing is that the driver from HP's site doesn't recognize any ATI adapters and it doesn't install the driver, just some other ATI-related stuff (CCC, uninstaller, etc). I have the latest BIOS and all other drivers and I still do not see any Intel integrated adapters.

 

No, the quad core Clarksfield i7s physically lack the integrated graphics chip. There's no way to hack non-existent hardware into existence, .

 

For Intel HD Graphics to work, in addition to capable processor, motherboard also need to support this feature. The problem is not the chipset (HM55) but one more device is required which is called multiplexer (or mux). For switchable graphics to work (Intel HD Graphics + ATI GPU), the PCH & ATI GPU must connected to mux. If not, Intel HD Graphics cannot be use with ATI GPU for switchable graphics. In other words, Intel HD Graphics is disabled.

 

ok , then is there a schematic representation to how this mux can be connected to pch and ati gpu?

 

Did anyone of you wrote to the laptop manufacturer to provide such [sg] option in future BIOS updates, if the fault lies in the BIOS ??

 

Dude... if they wanted to... they would have done it long before you tell them to Be sure that they did not just forget to enable it Everything has its reasons - technical or marketing! If they are just marketing - hopefully people here will figure out how to go around them, if they are technical... well then we are pretty much screwed up.

So has anyone been able to fix the Error 12? Does this at all mean that the Intel GPU is in use or can be used?

I read this in another forum:

So maybe it could be a BIOS thing afterall...?

 

but senior people here keep saying about multiplexers so it need hardware as well but if someone can provide us how this mux can be installed to make it switchable i would give it a go

 

In first time sorry for my english.

My notebook: Packard Bell TJ75-282TK. How enable switchable graphics card? Is it possible?

 

Hi!
I am trying to enable IGD Intel HD Arrandale on Samsung R540 laptop built on HM55.
Initially IGD hidden by bios.
With GRUB command

Code:

setpci -s 00:00.0 54.l=8:8

Linux not boots, even recovery mode.

This command enables IGD

Code:

setpci -s 00:00.0 54.b=0b

and Linux recovery mode boots.

But it is still not initialized properly, it seems memory reg 0x30 cannot be allocated.

Here is dmesg output
pci 0000:01:00.0 is ATI Radeon (default gpu)
pci 0000:00:02.0 is Intel HD (hidden gpu)





Has anyone ideas?

 

damn man you got me now. so basically you are trying to build a bomb from your laptop?