New Latitude 5470

if you read my previous posts on this thread, it shows the things I had to do to get my e5470 running glitch-free on 16.04

try to see if you can avoid those fixes (to see if the problem is only for my laptop)

 

Since we're talking about Linux, can anyone comment on whether they have seen the screen "crapping out" randomly?

It is usually accompanied by this mesg in dmesg:

" [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"

https://bugzilla.kernel.org/show_bug.cgi?id=95461

 

I kind of liked the industrial look of the thinkpad but after the terrible ordering experience I was put off from the brand entirely. Looking forward to receiving the Dell today a bit later.

Thanks yeah will let you know how it goes. Hopefully there will be all the drivers available by now and things like that. I was thinking of just doing a dual boot on the one drive with Windows just for the odd game and to try out the Computrace functionality but haven't decided yet. With my old Sony laptop dual boot was a pain due to the very limited BIOS.

 

drivers were available at 16.04 release (skylake support for kernel/IGP/wifi)... they just weren't stable...

dual booting fine here (tried dual on shared 2.5" SSD, and dual with OS separately on 2.5" SSD + WWAN m.2 2242)

 

Even the HD4600 graphics in Haswell CPUs could output 3840x2160 @30Hz. Looking on Intel's i7-6820HQ it says HDMI 1.4 max output is 4096x2304@24Hz. I would think that it does 3840x2160 @ 30hz.

 

I've had the e5470 for a couple weeks now. When I first received it I installed Windows 10 first, updated the BIOS and then installed Ubuntu Gnome 16.04 for dual boot. At first I thought the heat was really bad but realized this was only happening on the BIOS, whilst I was configuring everything.

Ubuntu installed fine and I ran apt-get dist-upgrade not sure if that helped but never encountered any more issues than I had in my previous laptop. That is, the wifi is sometimes buggy but I think that's my router not playing nicely with Ubuntu's drivers at some point, given that other Linux computers I've worked with have had the same issue. This one encounters this issue less so that's nice.

In general I am really happy with the laptop. I would say the main or only issue is the heat/fans on Ubuntu. Haven't really used the laptop much on Windows. On Linux it runs hot whilst on lap as feared. I wanted to decrease the temperature threshold for it to kick the fan in earlier but this involved modifying parts of the OS and BIOS that I didn't want to risk messing with. If I add common fan control packages the laptop's BIOS I believe counters any configurations so fans switch on and back off after a second or so.

Other complaints spark from the heat as well. That being that when under load the CPU seems to struggle with heat and clock speed suffers.

HDMI working at 2560x1440 @60Hz which is great, no need to buy a dock anymore although might buy one if they are crazy cheap at some point.

I really like the keyboard and screen is decent obviously not amazing but fair. Speakers as one would expect from a work laptop are not the best but manageable although they sound much better with the laptop upside down due to the position of them. Only other thing with Ubuntu that I recall is tearing on the laptop screen with movement. I believe I just have to activate anti-tearing on the intel iGPU config files as I had to do with the last computer.

Will think of maybe upgrading the OEM SSD with a PCIe one in the future. 32GB of RAM I installed works great. Will also consider upgrading the thermal paste on the laptop at some point.

 

Hi, I'm not the technical expert. But I'm going to buy a e5470 and would like to use the WWAN port for more memory as you described.
I searched for some WWAN cards to see how the port looks like.
The port is split into 3 parts and for the SSD only in two. Does it really fit into the WWAN port ?

Thanks
Michael

 

I presume you are referring to the keys which break the contacts into three groups. I know that this SSD (which has B + M keys) will work.

John

 

Yes, exactly. The WWAN cards has only two groups. Thanks for your confirmation!!!!

 

Hi all,

Thanks for all your posts here - much appreciated - for all the useful information and feedback posted.

I received a E5470 latop at work with a measly 128GB M.2 SSD fitted in the 'main' bay. I was hoping to replace this with the existing Samsung 256GB 2.5" SSD from my previous laptop.

But the E5470 came without the Interposer HDD cable and Dell have quoted £49 for the part.

So, after much googling, I stumbled across this thread and I was well happy that I could perhaps add a Transcend 2242 card into the WWAN port.

Now I know that someone mentioned a few pages back how they got a 2242 M.2 as a 2nd drive - but it looked like the 1st drive was a normal 2.5" SSD.

So, my question is - has anyone got this to work with two M.2 type drives i.e. one in the main slot and one in the WWAN port?

Apologies if this has been already answered, but I did scan the previous pages but did not see any clear indication if the above works?

Many thanks in advance for any replies!

 

I expect that this combination will work: I had two M.2 SSDs in my E5570 which is the same basic hardware platform. However, be aware that you can't set the SSD in the WWAN slot to be bootable. Also check the performance of the 128GB SDD - some have much lower performance (particularly write speeds) than higher capacity versions of the same SSD.

John