| bennabiy | Did a recent update drop driver support for Intel Mobile 4 Series chipsets? | 13:01 |
|---|---|---|
| tjaalton | no | 13:03 |
| bennabiy | I am only able to pull up video, either through a liveCD or LTSP booting, when using VESA driver, otherwise the screen flickers and goes blank about 10 seconds post grub menu | 13:27 |
| bennabiy | but the system is up and running, just no display | 13:27 |
| tjaalton | and only one kernel installed to choose from? | 13:29 |
| tjaalton | if you say it's a regression then try the previous kernels | 13:32 |
| bennabiy | only one kernel installed | 14:32 |
| bennabiy | I am trying to remote into the system to see if there are any errors. | 14:33 |
| tjaalton | so what do you mean "recent update"? | 14:33 |
| tjaalton | what version is this? and the kernel? | 14:33 |
| tjaalton | if vivid, make sure you have at least 3.19.0-13 | 14:34 |
| bennabiy | trusty | 14:34 |
| tjaalton | installed when? | 14:34 |
| bennabiy | just now | 14:35 |
| bennabiy | 3.13.0-49-generic | 14:35 |
| bennabiy | using X.org 1.15.1 | 14:36 |
| tjaalton | the image doesn't have that kernel, did you manually remove the install kernel? | 14:36 |
| tjaalton | use a release image | 14:36 |
| bennabiy | This is an LTSP installed chroot, but it also happens from a linuxmint 17.1 liveCD | 14:37 |
| tjaalton | so nomodeset works? get the relevant bits of a non-working boot from /var/log/kern.log and put it somewhere | 14:38 |
| bennabiy | nomodeset works, just 640x480 | 14:39 |
| tjaalton | yes | 14:39 |
| bennabiy | https://pastebin.mozilla.org/8830478 | 14:43 |
| bennabiy | from a machine which lost video, but I can remote in | 14:43 |
| tjaalton | what hw is it? | 14:43 |
| bennabiy | this is a hp st5742 | 14:44 |
| bennabiy | thin client | 14:44 |
| bennabiy | it was just working on a previous install, and when I did a fresh install of 14.04 / mint 17.1 the video on the server is fine, but not on the clients generated from the repositories | 14:44 |
| bennabiy | nor from the live CD | 14:45 |
| bennabiy | which is strange, but once again, nomodeset works there | 14:45 |
| bennabiy | When 14.04 first came out, these had no problems with the graphics, but something changed with the latest 14.04 | 14:46 |
| tjaalton | then you need to install earlier kernels and bisect which broke it | 14:46 |
| bennabiy | I have 3 other labs all running fine with the same hardware, and this one was running 13.04 just fine | 14:46 |
| bennabiy | do you have a suggestion as to which one to go back to? | 14:47 |
| tjaalton | 14.04 installer comes with -24 | 14:47 |
| tjaalton | no | 14:47 |
| tjaalton | file a bug | 14:47 |
| tjaalton | test these | 14:47 |
| bennabiy | So try -24, if it works,... ? | 14:48 |
| tjaalton | https://launchpad.net/ubuntu/trusty/+source/linux | 14:48 |
| tjaalton | you get the earlier ones there | 14:48 |
| tjaalton | remember to install -extra too | 14:48 |
| bennabiy | ok | 14:49 |
| tjaalton | if you say stock 14.04 worked | 14:49 |
| tjaalton | best to try -24 to rule out it's not something else messing things | 14:49 |
| tjaalton | use the latest of -XX.YY, so for -24 test -24.47 | 14:50 |
| bennabiy | ok | 14:50 |
| bennabiy | let me try that. | 14:50 |
| bennabiy | ok, so installed linux-image-extra-3.13.0-24-generic as well as same without extra | 14:57 |
| bennabiy | any other packages that I would need to install? | 14:58 |
| tjaalton | not at this point | 15:00 |
| bennabiy | trying it now | 15:01 |
| bennabiy | hrm. -24 did not work | 15:01 |
| tjaalton | so your setup is busted | 15:02 |
| bennabiy | same thing happened at the same point | 15:02 |
| bennabiy | what should I do about it? | 15:05 |
| bennabiy | nomodeset works, which means that the basic functionality of the system works | 15:06 |
| bennabiy | How can I pinpoint what is "busted"? | 15:06 |
| tjaalton | I don't know how you build your ltsp setup, and don't care to know either. but something in it is not ok if stock trusty doesn't work either | 15:07 |
| bennabiy | This is not just happening with LTSP, but also with a liveCD it does the same thing | 15:13 |
| tjaalton | and doesn't work on any machines of the same kind? | 15:16 |
| tjaalton | the hw could be broken too | 15:16 |
| bennabiy | Even though it was just working on a 13.04 system? | 15:19 |
| bennabiy | and works when I boot back into that system? | 15:19 |
| bennabiy | 3.8 kernel | 15:20 |
| tjaalton | you said trusty worked | 15:21 |
| tjaalton | anyway, same applies.. find out where it broke | 15:22 |
| bennabiy | I know it worked at a different location with the same hardware | 15:22 |
| bennabiy | I have 2 other labs running the same hardware clients, with 14.04 installed (with linuxmint 17) which I think were installed before 14.04.2 | 15:23 |
| bennabiy | I appreciate your input, I want to track this down. | 15:24 |
| bennabiy | I am downloading a fresh copy of the ISO to make a live USB, will test to see if stock 14.04.2 works | 15:24 |
| bennabiy | here is a copy from dmesg. https://pastebin.mozilla.org/8830489 | 15:26 |
| tjaalton | rule out hw issues first | 15:27 |
| tjaalton | cabling etc | 15:28 |
| tjaalton | [ 14.279246] [drm] GMBUS [i915 gmbus panel] timed out, falling back to bit banging on pin 3 | 15:28 |
| bennabiy | Would cabling be the issue if it is displaying just fine up to that point? | 15:28 |
| tjaalton | fair point :) | 15:28 |
| tjaalton | still | 15:28 |
| tjaalton | dunno | 15:29 |
| bennabiy | I am not saying you are wrong... just wondering ;) | 15:29 |
| tjaalton | easy to verify | 15:29 |
| tjaalton | I'm off -> | 15:29 |
| bennabiy | Thanks for your help | 15:30 |
| bennabiy | If I needed to test an older image of 14.04 (pre .2) where would I go? | 15:47 |
| bennabiy | I am getting this error in [drm] GMBUS [i915 gmbus panel] timed out, falling back to bit banging on pin 3 and am unable to see anything on the screen after a brief flicker | 15:51 |
| bennabiy | Does the same thing with an Ubuntu 14.04.2 liveCD as well as a linuxmint 17.1 (based on 14.04.2) liveCD. 14.04 stock worked, as well as mint 17 stock | 15:52 |
| tjaalton | releases.ubuntu.com | 16:23 |
| bennabiy | thank you again tjaalton | 17:13 |
| bennabiy | I have searched there, but still not finding the stock 14.04 | 17:13 |
| bennabiy | bah, found it :) | 17:14 |
| bennabiy | actually, I did not find it... | 17:15 |
| bennabiy | I am looking for 1386 14.04 image | 17:15 |
| tjaalton | old-releases.u.c | 17:55 |
| bennabiy | tjaalton: thanks. that did it | 17:57 |
| bennabiy | tjaalton: This is strange, would there be something which would cause the displayport to not work once it hits a certain point? | 19:39 |
| bennabiy | I hooked up a VGA monitor and it worked fine | 19:39 |
| bennabiy | but I hook up to the display port and it does not | 19:39 |
| bennabiy | but if I boot to a different install, the display port works fine | 19:39 |
| bandit-led | any idea how to get dkms to build and install nvidia properly? I like to run it after a kernel update but it is not working since nvidia-uvm was added to nvidia | 20:50 |
| bandit-led | sudo dpkg-reconfigure nvidia works but i have to install the kernel then reboot and rebuild the module and restart again | 20:50 |
| bandit-led | running NVIDIA binary driver - version 346.59 | 20:53 |
| bandit-led | sudo dkms install -m nvidia -v 346-346.59 -k 4.0.0-rc1-02232015 is what i usually run | 20:55 |
| bandit-led | just changing the kernel and nvidia versions | 20:55 |
| bandit-led | hmm nap time maybe i will get a response by the time i get up from my nap :) | 20:57 |
| === bandit-led is now known as bandit-sleeping | ||
| furkan | interesting, i tried compiling mesa from git on Ubuntu 15.04, following the instructions on freedesktop.org, and it works perfectly fine | 22:31 |
| furkan | i dunno why 14.04 was so problematic | 22:31 |
| furkan | when i add the file in /etc/ld.so.conf.d to point to /opt/xorg/lib, Xorg just segfaults | 22:33 |
| === bandit-sleeping is now known as bandit-awake | ||
| bandit-awake | hmmm this channell seems sleepy | 22:59 |
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