ThinkPad T440p: problems with various Ubuntu flavours

Asked by Ino Sharma on 2014-04-10

Hello everyone!

I've got a few (serious) problems with Ubuntu and Thinkpad T440p, the biggest one being the inability to install any of the *buntu 14.04 (Trusty Tahr) flavours.

The main reason for testing the 14.04 Beta 1 and Beta 2, is flakyness of 13.10 on the same machine.

The Trusty Tahr live DVD starts to boot, but then hangs on "breathing logo".
If I switch to the virtual console in time, I can catch these messages:

(please note: I copied these by hand, because I have neither control over, nor interaction with OS - a very short while after Ctrl-Alt-F1 it starts to ignore the input from keyboard, so no dmesg output - sorry. I apologize for the typing mistakes as well)

[code]unsupported brightness interface - please contact ibm-acpi-devel (AT) lists.sourceforge.net[/code]

After that, it spews loads of lines, presumably like these below (the ones I'm quoting here are among the last ones written, the rest scrolled off the screen too quickly):

[code][ 103.644587] SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x1db34607
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x1d9b3558
SQUASHFS error: Unable to read fragment cache entry [1db980c3]
SQUASHFS error: Unable to read page, block 1db980c3, size 6623[/code]

Blocks of messages almost identical to the one above repeat quite a number of times, and finally, the followinng lines loop (endlessly?) very slowly:

[code][ 167.070261] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 1, t=15002 jiffies, g=2425, c=2424, q=0)
BUG: soft lockup - CPU#0 stuck for 22s! [ondemand:1990]
BUG: soft lockup - CPU#0 stuck for 22s! [ondemand:1990]
BUG: soft lockup - CPU#0 stuck for 22s! [ondemand:1990]
BUG: soft lockup - CPU#0 stuck for 22s! [ondemand:1990]
BUG: soft lockup - CPU#0 stuck for 23s! [ondemand:1990]
BUG: soft lockup - CPU#0 stuck for 22s! [ondemand:1990][/code]

This happened with the following 14.04 flavours: Ubuntu, Xubuntu, Kubuntu (the one I intend to use) and Ubuntu Gnome. I've tried to boot all of these from DVD, and one or two from an USB flash drive.

As a reference: I've had no troubles installing Kubuntu 13.10 from a DVD (and I did it more than once in last few days), so optical drive is not the culprit.

There are a few problems with 13.10 though (and I am giving the details in hope it can help resolving the installation issue stated above):

- WiFi - an Intel 7260 - keeps dropping out suddenly; This issue is frustratingly annoying, and I was hoping that Trusty will change things for the better.

- Brightness change using dual-function F-keys works rather awkwardly: the change is very slow if the button is kept pressed, and if one presses it repeatedly, 5-6 presses are needed for a change of 1 brightness level. This problem disappears if K13.10 is booted with acpi=off, but then I am unable to power the machine off. The only way to do it then is to force it by a "long press" of the power button.

- Bumblebee for Nvidia Optimus renders all file systems unusable/read-only and corrupts memory, finaly freezing the machine. I don't need the rendering capabilities of Nvidia dicrete graphics, but I do need properly installed and usable CUDA toolkit.
- Sound is almost inaudible and does not respond to volume change neither through volume keys, nor through volume applet.

I should mention that preinstalled Win8 worked "as advertised", albeit for a very short time - I scraped it off of the HDD in favour of Kubuntu 13.10

My questions are:

1. Did anybody else here encounter such problems? - I found one or two similar posts on the net but none of suggested actions worked in my case.
2. Does any of this qualify for a bug-report? This is my 1st post ever, so I am not quite sure what/where/how...
3. Can anyone suggest a solution to any/all of these?

I could easily live with K13.10 if I could get rid of those quirks. After all. I installed the 13.10 on other computers I use regularly, and it works flawlessly.

If necessary, I can provide a more detailed hw-info and dmesg output from Kubuntu 13.10

I'd appreciate any help - Thanks!
Ino

Question information

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Last query:
2014-04-11
Last reply:
2015-10-29

Did you MD5 test the ISO you downloaded?
If you burned a CD/DVD did you burn as slowly as possible?

Ino Sharma (isharma) said : #2

Frankly, I didn't, since I can boot all those ISO images on both my desktop box and the other laptop (TP R500)
In fact, just for the fun of it, I am replying from my Desktop PC booted with Kubuntu 14.04 DVD - the very disc that seems unbootable on T440p

Thanks for the effort, though!

Ino

With errors like:

SQUASHFS error: zlib decompression failed, data probably corrupt

I suggest you check the CD health. Doesn't sound good. Either the disk is bad or the optical drive is faulty or has a dirty lens.

You should also check your RAM using Memtest86 from Grub.

Ino Sharma (isharma) said : #4

The optical drive is working fine, the DVDs are not not damaged and memory is healthy.

I have mentioned it, but let me elaborate on the subject of optical drive (you may have missed some of my comments):

I succesfully booted following (linux) images on TP T440p:

- Chakra Project linux
- Fedora 20 live
- Kubuntu 12.04
- Kubuntu 13.10 ('installed and re-installed it *after* unsuccesful attempts with 14.04)
- Acronis trueImage
- GParted
- MemTest86+ (yes, this was the first thing I've tested after SQUASHFS message flashed on my screen. Several runs, all the tests, multiple passes - memory is OK)

Therefore, I conclude, the optical drive is not the problem, and neither is RAM.

On the subject of DVDs themselves:
I *cannot* boot *any* of the 14.04 flavours on that same computer, while the *very same* DVDs boot on other machines just fine - if you recall, I even replied from a computer I started with "troublesome" Kubuntu DVD - so DVDs are not the problem either.

Finaly, just to be on the safe side, I connected an USB DVD drive, and attempted to boot that Kubuntu 14.04 image. Alas, no joy.

I suppose I shall have to give up this Trusty business, which doesn't really solve anything, as I'm stuck with that wifi/nvidia/Haswell problems..

Thanks for trying, anyway!
best regards,
Ino

P.S. Should I leave this topic open for further discussion?

Seems to be one of those Switchable GPU / Optimus nonsense things. Try the boot option:

nouveau.blacklist=1

May help

Ino Sharma (isharma) said : #6

Indeed, it might be. 'Will try as soon as I get back from work. Thanks for the suggestion!

Ino Sharma (isharma) said : #7

Unfortunately, blacklistig nouveau driver didn't do the trick.

Next thing I tried was installing 'debian testing' - with not too different results. Installation went well, but I am unable to log in, and error messages are popping up.

I believe you, actionparsnip, are on the right track: at least some of the problem lies in that wretched graphics subsystem, because, besides debian complaining about failing to load firmware for bluetooth and wifi adapter, majority of messages concernes nouveau driver. Blacklisting it in grub, again, did not change anything...

Looks like I got stuck with an expensive, elegant-looking, dark grey brick...

Suggestions and ideas are more than welcome.

I can confirm that. The Ubuntu 14.04 (desktop 64bit) is impossible to install from image ISO file on Lenovo ThinkPad 440p!!!

Tried the minimal ISO?

Only server version, not minimal ISO. In this case I can boot the install ISO image, but after ubuntu-desktop install I am not able to install NVIDIA optimus support via bbswitch/Bumblebee.

Ino Sharma (isharma) said : #11

Yesterday I've attempted a Kubuntu release upgrade from 13.10 to 14.04 (over the internet, through the Muon update manager). It didn't work, I'm afraid...

Again, as before with live ISO, (re)boot gets stuck at the "breathing logo", virtual console is unresponsive and from time to time, a message pops up, informing me that CPU is stalled for 22 seconds...

On the other notes - maybe my observations could help someone:

1. I mentioned earlier the problem with WiFi dropping out randomly under 13.10
Well, it kind of "solved itself" by mere coincidence: My internet access provider modified the access infrastructure so I had to change my WiFi AP.

The old Zyxel p-660hw was a 802.11b/g device. Everything was ok when T440p connected at 54Mbps. When speed dropped to, say 11Mbps, something went wrong and connection failed shortly after that. The new WiFi router/AP is an Asus RT-N12, an 802.11n (+b/g). T440p now connects at over 100Mpbs, and when idle, speed drops as low as 1Mbps ( according to "iwlist rate" command). It gets back again when required. Never dropped the connection since I've changed the AP.

Still, the problem remains - the older AP at my office is a b/g device, and everything gets back to (ab)normal, TP is loosing the connection ever so often.

2. The backlight brightness buttons odd behaviour is solved by pasing
"acpi_osi='!Windows 2012' acpi_backlight=vendor"
parameters to grub. I've combined the info found at https://github.com/leoluk/thinkpad-stuff/wiki/Haswell-ThinkPad-problems with a suggestion I've stumbled upon at some forum (I honestly don't remember which one) and it worked.

The support of T440p by Ubuntu is really terrible. Ubuntu 14.04 is practicaly impossible to install and configure on this notebook. I am affraid that Lenovo guys are not ready to solve this problem at all. And Ubuntu developers just say that this notebook is a crap.

Support of 12.04 is terrible too!!!

But I must say, that i decided to buy this notebook, because of Canonical official certification!!!

some additional relevant info regarding "support" of 12.04 on T440p: http://askubuntu.com/questions/441243/bumblebee-and-lenovo-os-crash-after-unsuccesful-installation

Ino Sharma (isharma) said : #14

Michal, thanks for the info!

I too was mislead by Ubuntu's "certification". The trouble is that Lenovo sells all sorts of hardware combinations under the same name. Thus, "T440p" can mean almost anything, and Ubuntu's certification is probably valid for one or two sub-models only. If I only knew that it doesn't cover the whole Lenovo's mess...

And to think that all the laptops I ever used / owned were ThinkPads and that all of them ran various Ubuntu flavors without any glitch whatsoever!

I appreciate the effort that went into getting as much of hardware components as possible to work under linux. The very fact that I removed MS Win from all my computers almost 10 years ago should say enough.

I wish I was a system developer so I can tackle the above problems, and to offer the solutions to the community...
Sadly, I'm not. I do a fair amount of programming, but in the field of numerical mathematics, and I couldn't possibly find the time to become a linux dev.

Knowing that a tremendous amount of knowledge and enthusiasm goes into the linux development, I am forever thankful to all the programmers that made all those distros available to us. Nevertheless, I find it sad and unsettling that those Ubuntu devs you mentioned, dismiss this laptop as "crap" that easily.

TBH, at this point, even I am inclined to agree with them, but, even then, I can hardly believe that there is a valid reason for 14.04 not working on T440p at all.

If 13.10 works (abeit a bit quirky) on this peculiar - OK, crappy ;) - hardware, one would expect that 14.04 works at least as good if not better.

I do hope that someone would mercifully find the sollution and make the 14.04 available to us, the unfortunate owners of the crappy T440p. Please! Someone? I don't want to go back to MS/W! (and to the "8", of all things...)

As far as my statistics goes, the distros that do work (excluding the Nvidia graphics and Intel/Dolby audio) are
Chakra (an Arch fork), (K)Ubuntu 13.10. and Fedora 20 Live.

I am rather unfamiliar with Fedora/RH distros So I didn't poke around to see what's what, and for what it's worth, I prefer Debian/(K)Ubuntu, anyway...

to get the install cd to boot up correctly on a t440p:

boot off the cd or usb stick and spam the escape key. you'll end up at a boot: prompt. type in "live-installer acpi=off" and hit enter. (or "live acpi=off").

the installer will then come up all the way. for me, the installer ran all the way through to the end but hung on the "copying installation logfiles" - however that's not too big a deal as everything (including the bootloader) has already been installed by that point. i just powered off, rebooted, and booted into xubuntu 14.04. audio seems to work fine,

i have one remaining issue - it doesn't shut down correctly. but at least i'm not stuck using windows 7 for everything now.

Ino Sharma (isharma) said : #16

Brendan, thanks, I'll certainly try that...

Zeno Gantner (zeno-gantner) said : #17

I have very, very similar problems on a recently bought T440p.
Ubuntu 14.04 does not boot properly, reports SQUASHFS errors.
Same boot medium boots other laptops nicely.

Fedora boots nicely.
Memtest86+ finds no problems.

annalena (annalena) said : #18

I had the same problem with my T440p i7-4700MQ with Intel and Nvidia.

I managed to finally boot off a 14.04 Live-DVD by pressing F6 and/or ESC as soon as the "Press Enter" disappeared. Then I modified the boot options to "nomodeset" which led me to the choice between "try ..." and "install ...". I went for "try..." and once the desktop showed up from where I then installed Trusty 64bit.

It goes without saying that the boot options in grub are set to nomodeset, but at least the notebook is working. WLAN is ok. I reach speeds up to 780 MBit/s. There remain several issues though: display brightness buttons are not functional, fingerprint reader is not detected, and the proprietary nvidia driver is something that will maybe work properly some day.

Zhe Wang (zhexwang) said : #19

Same problem with my T440p i7-4700MQ + Intel and Nvidia GT730M graphics. I tried to install a single 14.04 LTS and a 14.04 LTS alongside Win8.1, but both failed with the same problem. The installation with a same live-DVD or live-USB goes well on a T430s, so I can rule out the factor of broken installation media, assuming that the CD-ROM and all the USB ports are functionally.

On the other hand, no such issue when installing 12.04 LTS, and Win8.1 + 12.04 LTS works like a charm.

to zhexwang:

Are you really able to install and configure (optimus graphics nvidia+ intel) with Ubuntu 12.04 to get full graphic acceleration???

Under 12.04 I am not able to install and configure any nvidia optimus support (no proprietary drivers are recognized)!!!

Could you post here your steps to install and configure NVIDIA optimus drivers on Thinkpad T440p Intel+GT730M?

Zhe Wang (zhexwang) said : #21

Hi, michal-kvasnicka,

I was only talking about the installation issue in this thread, sorry for the confusion.. Unfortunately, the issue of NVIDIA optimus driver configuration on Ubuntu remains unresolved to me as well, and this is part of the reasons that I decided to install a Windows alongside Ubuntu 12.04.. This may sound crazy, but all the open Ubuntu problems (or bugs) on T440P, especially the NIVIDIA one and the installation of 14.04, have already driven me crazy.. Hopefully, all these issues could be resolved in 14.04.1..

Best,
z.

Hi, Zhe Wang,

yes, you are right. So far I am runing on T440p Windows 7, too. The current status is, that on T440p is practically impossible operate any kind (distro) of Linux. So the only I can say is: "Fuck you, Lenovo!!!"

Arturiu (artur-mcp-alves) said : #23

Hi,

I own a T440p with i7 and Nvidia and I'm a happty Ubuntu 14.04 user.

In order to install 14.04, I did this:
1. created a USB flash with 14.04 image (Ubuntu download page has instructions on how to do it)
2. downgraded the BIOS to version 1.14 (https://github.com/Bumblebee-Project/bbswitch/issues/78 ; Lenovo drivers/BIOS download page has instructions on how to do it)

After that, 14.04 can easily install and work properly.

The only flaw I notice is that battery power meter is not acurate in showing charging % .

Apart from that, sweet.

@artur-mcp-alves:

Where is possible to download BIOS 1.14???
On Lenovo support drivers bios page is only available version 2.22 last few weeks :(

@artur-mcp-alves:

OK I found the download link here:
http://www.userdrivers.com/Notebook-Tablet-PC/ThinkPad-T440p-BIOS-Update-Bootable-CD-1-14/download/

Could you post here the downgrade instructions???

Arturiu (artur-mcp-alves) said : #26

@mIchal,

Please check the BIOS Readme on download page: http://support.lenovo.com/en_GB/downloads/detail.page?DocID=DS037579

You will see a version history inside Read, which provides the link for v 1.14

@artur-mcp-alves:

In the Readme file is nothing about downgrade process. In general, the BIOS downgrading is extremely dangerous process which can lead to complete broke PC.

So, I am asking once again, is the downgrade from 2.22 to 1.14 safe and reversible? Is there any Lenovo official document describing this process?

Arturiu (artur-mcp-alves) said : #28

@mIchal,

My mistake.

It's not the Readme link. It is the "...Learn more" link of the BIOS update utility : http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS037575

I followed the instructions on how to install 1.14 and it worked well (I had 2.22).

OK ... could anybody else confirm that bios 1.14 will make to possible install and fully configure all HW drivers (Nvidia Optimus (mainly!!!), wlan, lan, dual display, docking ... etc)???

I played with few weeks ago and I spent on this topic really huge amount of time without any success, so now I need some additional confirmation to start play again.

Arturiu (artur-mcp-alves) said : #30

@michal,

My 14.04 setup uses nouveau default settings.
This means that i915 is the graphics card I'm using, although nvidia is detected during boot.
But I didn't activate it (you'll need the proprietary driver instead).

Docking station works well, but the USB 3.0 ports on it aren't working (the ones in the laptop do work).

wlan, lan and dual display works well.

As soon as I found that I needed 1.14 bios and that I would run Intel graphics as default, it was a plain setup that took no more than 20 min (SSD drive).

My 50 cents...

h (hhweise) said : #31

I just downgraded my BIOS per Arturiu's suggestion. It went well. After the downgraded, the machine rebooted immediately like 8 times. I was worried it was bricked, but then it came up. So far Ubuntu 14.04 is working well for me. To sum:
Thinkpad T440P, I7, Nvidia Optimus, Intel AC wireless. Ubuntu, Mint, Debian, would not shut down properly. Fedora, OpenSuse, were glitchy. I downgraded BIOS and Ubunutu and Mint shut down properly. I have only been running Ubunut for a half hour so far, but I am hopeful. Thanks @Arturiu.

Michal (kontokala) said : #32

Confirmed.

Downgrade BIOS from 2.22 to 1.14 at Lenovo 440p resolved mine problems.

BIOS update utility :

http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS037575

I've ran file 'gluj04us.exe' (1.14 BIOS) from Windows 7, then Laptop restarted 3 times (flash operations).

After 4th reboot laptop I've reinstalled Ubuntu 14.04 and every hardware stuff working properly.

spacefight (spacefight) said : #33

I can confirm this, downgrading a spring 2014 T440p to BIOS 1.14 worked to get 14.04 running from the live CD promptly without any other settings needed.

The ISO can be found here for those who allready are on a flavour of Linux:
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/gluj04us.iso

@spacefight
@Michal
@h
@Arturiu

Downgrade to BIOS 1.14 probably does not support SSD disks, so this workaround is out od scope for many T440p users.
See: http://askubuntu.com/questions/441243/bumblebee-and-lenovo-os-crash-after-unsuccesful-installation/502429#502429

Could you confirm, that after BIOS downgrade to 1.14 are SSD disks still fully supported?

Arturiu (artur-mcp-alves) said : #35

FYI, I use this bios version and two SSD drives inside my T440p (2nd in CD
bay).

No problems at all.

Sent from phone.
On 7 Aug 2014 17:47, "Michal Kvasnicka" <
<email address hidden>> wrote:

> Question #246834 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/246834
>
> Michal Kvasnicka posted a new comment:
> @spacefight
> @Michal
> @h
> @Arturiu
>
> Downgrade to BIOS 1.14 probably does not support SSD disks, so this
> workaround is out od scope for many T440p users.
> See:
> http://askubuntu.com/questions/441243/bumblebee-and-lenovo-os-crash-after-unsuccesful-installation/502429#502429
>
> Could you confirm, that after BIOS downgrade to 1.14 are SSD disks still
> fully supported?
>
> --
> You received this question notification because you are a direct
> subscriber of the question.
>

Joni Kamarainen (jkamarai) said : #36

I too recently run upgrade from 12.04 to 14.04 after which the system was totally messed. Tried everything, but finally the BIOS downgrade to 1.14 solved the problem - after that 14.04 has been working OK (for several hours now).

For me it took some time to understand how to properly make a bootable USB flash drive from the gluj04us.iso from Lenovo and succeeded with the thinkwiki instructions at http://www.thinkwiki.org/wiki/BIOS_Upgrade#Manually_creating_a_USB_Flash_drive_in_Linux

I think Lenovo should fix this issue soon and provide a new BIOS update since the problem is really annoying and without the help of my old computer to google and find this message chain this would still be a nightmare!

@jakamarai
The problem with BIOS is known about 6 months, so I am very sceptical about quick fix from Lenovo site.

Joe (jo-h) said : #38

The new firmware update (2.25) doesn't solve the nvidia/bumblebee issue ( testet with ubuntu 14.04 and ubuntu gnome 14.04.1).
I can work with my T440p, but only with nouveau driver.

I can confirm that downgrading the BIOS from Version 2.22 to 1.14 solved the problem.
The Laptop now runs stable without the "nomodeset" kernel parameter.
Still no problems with the SSD either.

ch.rust. (charustak) said : #40

Hi Guys!

Just wanted to share my experience in installing ubuntu 12/14.04 on t440p. My model of the thinkpad t440p is 20AN009DMS. It tried to install 14.04.1 (64bit), but with miserable effect. Could not change brightness; no external monitor even through the ultra dock with newest firmware; with nvidia drivers the system was hunging after logging in (I could move a mouse cursor across empty wallpaper); with bumblebee the system was very unstable.

Then I tried downgrading to BIOS 1.14 but it faild completely. My brand new t440p became a very elegant brick---even the bios 1.14 didn't load. Boot attempt finished with an error message "1802: Unauthorized network card is plugged in...". Pretty terrifying. I had to phisically remove a wireless card (Sierra Wireless AirPrime Model: G12Z024.05) that was not handled by 1.14. Most likely it was the BIOS 1.18 that "added support for new wireless devices" (http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/gluj14us.txt) including mine. Without the wiress card the system started. I even tried to install nvidia drivers again but could not get any results with that.

Now. I moved to the BIOS 2.25, istalled 12.04.5 64bit. All basic stuff works reasonably (nvidia, external monitor, ultra dock, brightness) with some minor glitches. Most likely I don't have optimus and run constantly on nvidia.

Cheers,
chrust

Aaron Staley (astaley) said : #41

How were you all able to downgrade? I am on 2.25, but when I attempted to use the 1.14 CD to downgrade, I get the error "An update is not necessary at this time. the process has been canceled"

Arturiu (artur-mcp-alves) said : #42

Well, I was on an earlier version (2.22) which allowed me to do so.

These are the steps I followed:
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS037575

I hope it works for you.

On Tue, Nov 11, 2014 at 2:12 AM, Aaron Staley
<email address hidden> wrote:
> Question #246834 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/246834
>
> Aaron Staley posted a new comment:
> How were you all able to downgrade? I am on 2.25, but when I attempted
> to use the 1.14 CD to downgrade, I get the error "An update is not
> necessary at this time. the process has been canceled"
>
> --
> You received this question notification because you are a direct
> subscriber of the question.

--
Artur Alves
<email address hidden>

Aaron Staley (astaley) said : #43

Problem is I upgraded first. Looks like versions > 2.27 cannot be downgraded:

http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/gjuj14us.txt

Is there anyway around this? Is my only option to call up Lenovo asking for an exchange?

Arturiu (artur-mcp-alves) said : #44

It's a good question, but I suspect so...

I would ask Lenovo to help you to flash 2.22 so that you can continue
with the process.

/artur

On Tue, Nov 11, 2014 at 4:46 PM, Aaron Staley
<email address hidden> wrote:
> Question #246834 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/246834
>
> Aaron Staley posted a new comment:
> Problem is I upgraded first. Looks like versions > 2.27 cannot be
> downgraded:
>
> http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles/gjuj14us.txt
>
> Is there anyway around this? Is my only option to call up Lenovo asking
> for an exchange?
>
> --
> You received this question notification because you are a direct
> subscriber of the question.

--
Artur Alves
<email address hidden>

Well ... This is really terrible situation!!!

If BIOS > 2.25 or 2.27 is not possible to downgrade to 1.14 which is only Linux compatible BIOS for T440p, so every Linux user must be very careful and do not upgrade BIOS in any circumstances.

I do not understand this Lenovo philosophy!?

Aaron Staley (astaley) said : #46

To be fair, the newer BIOSes do work with nvidia binary drivers; I just am finding some things lacking in them (display rotation, glitches when booting up while docked, etc.) and prefer to use nouveau

@Aaron Staley (astaley):
You are trying to say, that you are able to operate Linux on T440p with fully functional NVidia card with latest BIOSes (>= 2.25)???

Aaron Staley (astaley) said : #48

Sure, which is what @annalena described. Once I got in (via nomodeset), I could install the proprietary drivers which worked (and no longer need nomodeset)

I'm not sure what my optimus settings are; I found there was no way to disable my nvidia card in the bios.

annalena (annalena) said : #49

@astaley: annalena speaking - please, read carefully what I wrote. I could indeed boot off a DVD and install trusty using "nomodeset". However, But I did not pretend that nvidia drivers were working.
BTW: Upgrading to 14.10 solved the issues re "nomodeset" as well as re display brightness buttons.
analena

annalena (annalena) said : #50

@astaley: annalena speaking - please, read carefully what I wrote. I could indeed boot off a DVD and install trusty using "nomodeset". However, But I did not pretend that nvidia drivers were working.
BTW: Upgrading to 14.10 solved the issues re "nomodeset" as well as re display brightness buttons.
analena

Aaron Staley (astaley) said : #51

Ah my bad. Why did the nvidia binary drivers not work for you?

Thanks for the advice on 14.10. Will give that a shot.

Linux T440p situation is still badly unstable with BIOS > 1.14.

All nvidia binary drivers has always terrible troubles.
- Optimus does not work at all
- Power management is very bad (idle power comsumption is about 16 watts and more)
- weakup from sleep is unstable
- multim onitors support is very bad
- docking is unstable too

So far, the only BIOS 1.14 is suitable for linux on T440p. Nothing change during last six months.

Final recomendation is: Do not use BIOS > 1.14 with Linux at all!!!

Arturiu (artur-mcp-alves) said : #53

Agree: use BIOS 1.14, and use the default open source driver from 14.04 .

It's not going to use nvidia but is stable (suspend works, video out
works, dock works but not the usb 3 ports on the docking station,
power management is not bad, did not test multiple monitors).

/artur

On Wed, Nov 12, 2014 at 6:16 PM, Michal Kvasnicka
<email address hidden> wrote:
> Question #246834 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/246834
>
> Michal Kvasnicka posted a new comment:
> Linux T440p situation is still badly unstable with BIOS > 1.14.
>
> All nvidia binary drivers has always terrible troubles.
> - Optimus does not work at all
> - Power management is very bad (idle power comsumption is about 16 watts and more)
> - weakup from sleep is unstable
> - multim onitors support is very bad
> - docking is unstable too
>
> So far, the only BIOS 1.14 is suitable for linux on T440p. Nothing
> change during last six months.
>
> Final recomendation is: Do not use BIOS > 1.14 with Linux at all!!!
>
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--
Artur Alves
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Joe (jo-h) said : #54

Hei Guys,

by trial and error I finally managed to make Linux Ubuntu Gnome 14.04 working on my T440p together with Windows 8.1 (Dual boot). It was tricky.

I firstly disabled secure boot (which might not be necessary as Ubuntu has an officially signed driver for secure booting by now, but I'm not sure about that). Than installed Ubuntu using "Nomodeset".
It worked. Optimus doesn't work nor does the proprietary nvidia driver (I tried and tried and always had to "purge" it after installing, as booting always failed). Hence, I cannot use nvidia external graphic card.

So, I'm using UEFI 2.24. My (Ultra) Docking station works fine, internet, mouse, keyboard, second screen plugged in dock ...
One (maybe) tip for those having a dock which doesn't work: Install the actual firmware for the dock from lenovo. I had problems with the audio and installing solved the issue.
However, it might be necessary to have a windows installed to be able to do this.

Hope this helps a bit.

Nikolaj Hansen (barnabasdk) said : #55

For the ones considering the 1.14 BIOS:

The T440p is now at 2.34: https://download.lenovo.com/pccbbs/mobiles/gluj24uc.txt

If you have a later model of this laptop you could seriously damage your hardware downgrading the BIOS. Even to the point where you brick your laptop.

So only do this if you really know what you are doing.

annalena (annalena) said : #56

Not sure whether this still of interest:
I did a fresh install of 15.10 and realized that the pertinent nvidia drivers were installed automatically without negatively affecting the system. BIOS was at 2.34 (now at 2.35). No need to set any specific boot options (Other issues than the nvidia drivers had been solved with 15.04 already, i.e. display brightness buttons , fingerprint reader).

@abbalena: Great news!!! I can confirm that everything works like charm with BIOS 2.35.
After 20 months from T440p release is now possible to operate Ubuntu on it :)

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