[LUCID] Cannot install on eDP laptops such as HP Elitebook 2540p or 8440p

There are 2 patches on the upstream bug report that fix the problem and it would be useful if a test kernel could be prepared with them

http://bugs.freedesktop.org/attachment.cgi?id=35782
http://bugs.freedesktop.org/attachment.cgi?id=35783

Actually, only one of the two patches appears to be necessary; the Intel developer is in China, and should be waking up around now. The second patch will force higher bandwidth than necessary operation (taking power). So let's wait and see what ykzhao says in response to the test that Dick Marinus did.

Several other items I forgot to mention in the original report:
   1) I reproduced this bug on Fedora Beta as well as after its initial discovery in Ubuntu 10.04; Fedora is in fact where the dmesg dump came from that I sent to ajax with the rom file. Ajax has been recovering from a bike accident, so I've been reluctant to ask him to build me something on Fedora (he busted his arm and has a case of road rash, but is ok). But Fedora fails identically as Ubuntu.
   2) It isn't clear this is really the same bug #554569 or not, though the gross symptoms are very similar. Ajax said that I had about the first eDP panel in captivity he had seen; the IBM x201 has been out considerably longer, and the Intel driver folks have x201's in captivity. I therefore doubt that the x201 has an eDP panel, though do not know for sure.

The specific version of the HP 2540p I have is:
http://h10010.www1.hp.com/wwpc/us/en/sm/WF06b/321957-321957-64295-3740645-3955549-4138624-4138627-4156284.html

Exactly how urgent this bug will be to fix in the general population depends on the uptake of eDP panels by the industry, still a bit hard to predict. I did the somewhat risky thing of getting the latest and greatest laptop on the market :-(, and still got burned even having checked if there were likely to be any issues with the X developers. Oh well. One more arrow to the very large collection already on my back.

But it will certainly become a much bigger long term issue given 10.04 is an LTS release, even if your sample size ends up being just one person with eDP displays today.

I have a laptop HP 2540p and I'm in the same situation.
The kernel family 2.6.32.* doesn't work, also with other linux distributions.
Kernel 2.6.31-21 works without such problems (I installed ubuntu 9.10 and after it I completed the dist-upgrade to 10.04).
Actually I boot lucid lynx using 2.6.31-21 (the karmic one).

I have this exact same problem on a HP Elitebook 8440p. It also has a eDP screen.

Again, same issue on HP Elitebook 8440p, after Lucid installation only thing that works I have found is to run Lucid with the 2.6.31-22 kernel

I have problem with activating WLAN on my notebook too.
Is it a known bug or it is my problem (sine 10.04 does not work for me I tried with 9.1 but still no wlan)

commit fe27d53e5c597ee5ba5d72a29d517091f244e974
Author: Dave Airlie
Date: Wed Jun 30 11:46:17 2010 +1000

    i915: fix ironlake edp panel setup (v4)

    The eDP spec claims a 20% overhead for the 8:10 encoding scheme used
    on the wire. Take this into account when picking the lane/clock speed
    for the panel.

    v3: some panels are out of spec, try our best to deal with them, don't
    refuse modes on eDP panels, and try the largest allowed settings if
    all else fails on eDP.
    v4: fix stupid typo, forgot to git add before amending.

    Fixes several reports in bugzilla:

          https://bugs.freedesktop.org/show_bug.cgi?id=28070

    Signed-off-by: Dave Airlie
    Signed-off-by: Eric Anholt

Sorry, it seems the work PC with IE6 ate the first part of my previous comment.

I was trying to say that this bug might be fixed upstream in kernel 2.6.35-rc4. My previous comment is from that kernel's changelog.

A PPA of the abovementioned kernel can be found at http://kernel.ubuntu.com/~kernel-ppa/mainline/

The steps to take now are:

1. Test the current Lucid proposed kernel. There isn't anything new in that kernel likely to fix this, but we need to test for completion.

2. Cherry pick the patch above into that kernel, and test again.

The current Lucid proposed kernel is available from:

git://kernel.ubuntu.com/ubuntu/ubuntu-lucid.git

This patch is also one that needs testing for bug 561802. If anyone builds a test kernel, please update that bug as ask for testing there also.

Thansk

I'm, building a test kernel with this patch, I'll update when it's available

Here are test kernels with the upstream patch associated with the closure of this upstream bug:

https://bugs.freedesktop.org/show_bug.cgi?id=28070

Please test and see if it helps.

http://people.canonical.com/~sconklin/i915_blank/

Steve

Tested Steve's test linux-image-2.6.32-24-generic_2.6.32-24.38_i386.deb with the upstream patch on my 8440p (with Intel integrated graphics), unfortunately the issue is not resolved by this kernel, black screen. Back to using Karmic 2.6.31-22 kernel

My experiences on a Dell E6510:
2.6.32-24-generic from Steve: does not work
2.6.35-7-generic from https://launchpad.net/~kernel-ppa/+archive/ppa: works
2.6.32.15+drm33.5 + patch from https://bugs.freedesktop.org/show_bug.cgi?id=28070: works
2.6.31-14-generic from karmic: works, but unstable
stock 2.6.34.1 + patch from https://bugs.freedesktop.org/show_bug.cgi?id=28070: works

So the patch seems to work, but somehow not in combination with Steve's kernel.

I tested Steve's kernel on my HP 8440p and it didn't work for me either. Steve, do you want me to try to build the kernel with the patch myself like henk did to see if that works? Or do you have an idea of what might be going on?

Hi!

I have a HP 2540p which, of course, also has the same problem.

What I have tested using Lucid x86_64:

. 2.6.31-14, does not work, the screen goes blank (black blank) and then as time goes by some pixels start to come on until the whole screen gets white;

. 2.6.35-7, does not work, the screen goes blank (also black) and nothing more happens;

. 2.6.35-7-rc6 (I read somewhere that it might work), does not work as 2.6.35-7

. 2.6.34-rc4, also read about somewhere, also does not work as 2.6.35-7.

I am a bit stuck here as I don't have a workaround and so I will have to install Windows 7 to be able to work. Any ideas?

Just for the sake of it, tested 2.6.35-999 daily build as of 20100724 and also just got a blank screen.

I also noticed that sometimes I am able to reboot doing CTRL-ALT-F1 and afterwards CTRL-ALT-DEL but sometimes that does not work...

Raul, did you try with (eg) Karmic ? I have a 2540p on order and my cunning plan is to install Karmic with its 2.6.31 kernel. And stay there until this issue is resolved. Thats a different mix than your test of using 2.6.31 on Lucid.

Not much of a plan, but its a plan ....

Incidentally, I had little choice in getting a 2540p, org I work for has a sweethart deal with HP.

David

Hi David,

No, I didn't try Karmic as I thought it would be the same as testing the 2.6.31-14 on Lucid.

I will stick with Karmic for a while then!

Thanks,

Raul

After I installed Karmic, altough I do have a display, which is good,
the computer hanged a few times (after 10 to 20 minutes use everything stops). I know this is not the place to
discuss this problem, but as David said he is using th HP2540p without
problem and I don't know how to get directly to him...

I have installed Karmic and then run aptitude dist-upgrade.

Thanks,

Raul

I installed the kernel 2.6.35-10-generic-pae #15 from the kernel PPA and it mostly fixed my problem. I can boot up with modesetting, and X works (using the intel driver). I can't unsuspend still (I get the blank screen again).

For the suspend/resume issue: see bug #578673

Raul, just a clarification, my HP2540p has not arrived so, no, I am not using Karmic without problems. My opinions purely theoretical...

David

Hi David,

I misunderstood that, sorry, I got it working just fine disabling HT, will check if there is a bug filed for this... Also suspend does not work...

Raul

Just tried http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/2010-08-04-maverick/ on my 2540p
it'll seems work fine without hacks, just few screen flicks before login Xorg,

This bug already seems to be fixed in F13 and upstream... any idea when (or if) we can expect the patch to be backported to lucid?

Using 2.6.35-020635rc6-generic, seems fine so far, just no brightness control via hot key or applet, however it could able to deal with /proc/acpi/video/...

Still fail to resume display after system suspend, system freezes that need to force recycle.

HP EliteBook 2540p BIOS F.04 running 2.6.35-14-generic #20~lucid2-Ubuntu has working suspend/resume but screen brightness control doesn't work.

I have the same problem with an EliteBook 8440p (base model) with an i5 and the Intel GMA HD. Black screen but the backlight is still on. I was successfully able to install Kubuntu with text mode but the problem occurs when I try to boot Kubuntu. Recovery mode returns the same result, black screen. This is a VERY frustrating problem. I cannot believe that it has not been fixed yet.

4+ months and no fix???

If I knew enough about Linux I would help but I don't.

I also tried Kubuntu x64 and x32, both have the same problem.

Maverick Alpha 3 installed on my HP 2540p; but the screen flashes intermittently at 1-2HZ, more than a bit annoying....

Same after upgrading to today's packages.

So things are still busted, even if not as catastrophically as before.

Any hope?

http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.36-rc1-maverick/ also flashes at me...

http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.35-rc6-maverick/ does *not* flash the screen at me.

I have the same problem on a 8440p. I could install and I am using ubuntu adding on grub the options 'xforcevesa' and 'i915.modeset=0' (both). But I can only use the safe graphics mode.

I have been using Lucid with the Maverik kernel on a HP 2540p with no problems (except for an extremely slow hibernate).

See http://www.linlap.com/wiki/hp+elitebook+2540p

Bye,

Raul

http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.36-rc2-maverick/ still has the "flashing" problem (the video coming and going several times per seond).

@Cima - Which version of Ubuntu are you using?

@madbiologist
I'm using Ubuntu 10.04, all up to date (but neither proposed nor backport updates enabled).

----- Start Original Message -----
Sent: Tue, 24 Aug 2010 07:02:03 -0000
From: madbiologist <email address hidden>
To: <email address hidden>
Subject: [Bug 585651] Re: [LUCID] Cannot install on eDP laptops such as HP
 Elitebook 2540p or 8440p

> @Cima - Which version of Ubuntu are you using?
>
> --
> [LUCID] Cannot install on eDP laptops such as HP Elitebook 2540p or 8440p
> https://bugs.launchpad.net/bugs/585651
> You received this bug notification because you are a direct subscriber
> of the bug.

----- End Original Message -----

@Cima - does installing the 2.6.35.3 kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/ fix the problem?

@madbiologist
Yes, kernel 2.6.35.3 solves the problem on my HP 8440p, the screen works
fine, and everything else as well, it seems. Is this a stable release of
the kernel? Is it advisable to use it on a production machine?
Thanks

On 08/24/2010 11:49 AM, madbiologist wrote:
> @Cima - does installing the 2.6.35.3 kernel from
> http://kernel.ubuntu.com/~kernel-ppa/mainline/ fix the problem?
>
>

Yes, kernel 2.6.35.3 is a stable release. Non-stable kernel releases are designated with an -rc suffix, for example the latest kernel at the time of writing this is 2.6.36-rc2. The upcoming Ubuntu 10.10 "Maverick Meerkat" has released several alpha releases using the 2.6.35 kernel. I have been using Maverick alpha 3 (plus official updates to firefox, libcairo2 and mesa) for several weeks now without an issue, although admittedly my hardware is rather old. My system's uname is Linux 2.6.35-14-generic i686. 2.6.35.3 is the third maintenance release of the 2.6.35 kernel and should be fine for use on a production machine. Maverick will be shipping with this kernel, or possibly 2.6.35.4 (the Maverick KernelFreeze is scheduled for September 16th, 2010, as per https://wiki.ubuntu.com/MaverickReleaseSchedule )

Any hope of a bug fix on older kernels? This kernel seems to work just
great on my machine.

On 08/24/2010 03:29 PM, madbiologist wrote:
> Yes, kernel 2.6.35.3 is a stable release. Non-stable kernel releases
> are designated with an -rc suffix, for example the latest kernel at the
> time of writing this is 2.6.36-rc2. The upcoming Ubuntu 10.10 "Maverick
> Meerkat" has released several alpha releases using the 2.6.35 kernel. I
> have been using Maverick alpha 3 (plus official updates to firefox,
> libcairo2 and mesa) for several weeks now without an issue, although
> admittedly my hardware is rather old. My system's uname is Linux
> 2.6.35-14-generic i686. 2.6.35.3 is the third maintenance release of
> the 2.6.35 kernel and should be fine for use on a production machine.
> Maverick will be shipping with this kernel, or possibly 2.6.35.4 (the
> Maverick KernelFreeze is scheduled for September 16th, 2010, as per
> https://wiki.ubuntu.com/MaverickReleaseSchedule )
>
>

Everything after 2.6.35-020635rc6 has the screen flashing problem, including 2.6.36-rc2.

I've filed a careful bug report upstream with the Intel folks, see:

https://bugs.freedesktop.org/show_bug.cgi?id=29821

              - Jim

Noting this bug is rated as having had a fix released, thought I'd put in my two cents worth. I have a beta Ubuntu Maverick and the mainline kernel dated 15th September (called by Ubuntu 2.6.36-999) on a HP2540p.

When using the internal display, it still 'flashes', more correctly 'flickers' in my opinion. Not constantly, might be ten or so seconds between each flicker, on average. Its quite erratic. Its not really bad enough to call it 'unusable' even.

Using an external display, its fine.

(By the way, long term followers of this bug may remember my plan to use U 9.10, bad plan, using 9.10 leaves the box totally unable to recognise an external display at all. So not useful with a docking station...)

Once a bug is marked fix released, any updates generally ignored for bug processing. I just happened to notice your update here.

Could you please file a bug against maverick and provide the same information as in comment #47? That will make sure that it gets some attention.

Thanks!

Thanks Steve, I should have know that.

For other people following this thread, I have detailed the situation at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/641027

Not a new one as Steve requested but its open and almost certainly the same thing.

David

Confirm same behaviour on HP Elitebook 2740p (1280x800) Ironlake IPS.

Tried using drm-intel-next (2.6.37-rc2 + drm-intel) repo daily ubuntu autobuild
as of the 20/11/2010 with no joy - (blank pannel, loading from conosle with
i915 modeset=1 causing issue, works vesa only.

Using the maverick standard (2.6.35-22-generic) kernel odly intermitantly
allows loading of X with the intel driver, but oft times falls back to vesa -
presume this is a result of using xorg-edgers.

I think the screen flickering issues are unrelated to the initial bug report - and should be in the https://bugs.launchpad.net/ubuntu/+source/linux/+bug/641027 thread.

I believe the upstream bug for the original is : https://bugs.freedesktop.org/show_bug.cgi?id=29278

which is completely non-working eDP panel (sometimes with hard locks on inserting the i915 module with modeset=1)

Still fails in todays new natty kernel (2.6.37-6-generic)

Proposed patches the upstream rc2 of 2.6.37 to fix this also do not solve the issue for my hardware.

For users that need a temporary fix to install, I was able to install using the 'nomodeset' boot option.

vow even 11.04 on fujitsu s760 gives me the same problem. blank screen. Fedora 15 same problem

I have used Live CD version 11.04 on a HP 2540p with no problem and upgraded from 10.11 to 11.04 with no glitch. Are you sure you are seeing the exact same problem?

On 05/25/2011 12:55 PM, Raul Silva wrote:
> I have used Live CD version 11.04 on a HP 2540p with no problem and
> upgraded from 10.11 to 11.04 with no glitch. Are you sure you are seeing
> the exact same problem?
>
I will note that while I have not done a fresh install and did not
actually verify 11.04 installation, I did do much of the upstream
testing with kernel.org kernels and X.org last fall and winter; I would
expect that 11.04 should install fine (though possibly have problems
with its screen on suspend/resume).

Kernel.org 2.6.39 seems to be working for me fine, but I really should
do some more explicit testing, which I've been too busy to do recently.

Hi,
 I have HP 2540p which doesnot have any CD ROM drive. I am not able to boot Ubuntu from USB. Version that I tried are 9.10, 10.04, 11.10, Linux Mint 12 DVD. Each have different problem but finaly they failed to boot.

Ubuntu 9.10: Booted successfully but freezes completely if I click anything in the desktop. Hard power reset is then only option.

Ubuntu 10.04: On first boot the os booted but the Display was flickering badly. In the second boot the system stands on the ubuntu boot screen (with dots moving) and does not go any further. At the same display is flickering.

Ubuntu 11.10: Booted on the first boot. In the second boot when the boot screen with moving dots appear there is one line saying that:

Waiting for network configuration...

A while later, the following displayed:

Unattended-upgrade in progress during shutdown, sleeping for 5s

After a long while, the screen becomes black and long list of error appears, and finally ubuntu provides a prompt like:

ubuntu$ubuntu

I have used Sandisk, Kingston, Transcend pen drives all with 8GB space. All failed. I used Universal USB Installer from pendrivelinux.com. I have checked the images with MD5, but the images were ok. These problem does not appear with HP 6910P. Sure that something to be tweaked in the OS for this particular laptop, but what?

Hi Ashok,

11.10 should work with no issue on the 2540p. May be you are experiencing another problem, see http://ubuntuforums.org/showthread.php?t=1859799

Hope that helps!

Jim Gettys, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily kernel folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.12-rc2

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

Lucid is no more a supported version now

Status changed to 'Confirmed' because the bug affects multiple users.