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eeejay
Paper Tape
Posts: 4
Registered: ‎09-09-2008
Location: Seattle
Views: 7,079
Message 1 of 10

T400 Integrated Graphics

Hi,

I started using Ubuntu 8.10 alpha (Intrepid) with my new T400. Everything works for the most part. The only exception being Integrated graphics. When xorg starts I get some mode switching action, and then the whole system freezes, not just the display, I had a ssh session going, and it freezes too.

 

I have the latest BIOS (1.12-1.01). Intrestingly one of the fixesin this BIOS reads like this:

 

  • (Fix) System may hang after graphics mode changing and reboot.
  •  

     

    This sounds very much like what I experienced, so I am concurned that this bug was never really fixed.

    Anyone else having a similar experience?

    jdclucidly
    Paper Tape
    Posts: 8
    Registered: ‎09-09-2008
    Location: Kansas City
    Views: 7,070
    Message 2 of 10

    Re: T400 Integrated Graphics

    Yes, my laptop does this also about 80% of the time -- I'm using Xorg 1.5 7.4 from Debian Experimental with Kernel 2.6.27-rc5 (for the new Intel 5000 wireless driver). I've also identified two other bugs which may be related: "DPMS off" events cause the same hang. And LID close events will sometimes cause kernel panics.

     

    I have tried just about everything I can think of including recompiling the kernel several different ways and about a hundred obscure proc, sys and kernel command line options and nothing appears to affect it.

     

    I currently believe this is a Lenovo ACPI BIOS bug but I don't know enough about ACPI tracing to debug that hypothesis.

     

    Anyone know of any Lenovo beta BIOS's for T400?

     

    ((BTW, I git-clone'd the upstream Intel driver and it's SO far ahead of Xorg 1.5 that there's no way to get it to compile. They've already switched trunk to GEM and Kernel modesetting. But, there are some interesting looking log messages about pipes, etc.))

     

    Jason Clinton

    Gnome Games Maintainer

    Message Edited by jdclucidly on 09-09-2008 12:17 PM
    eeejay
    Paper Tape
    Posts: 4
    Registered: ‎09-09-2008
    Location: Seattle
    Views: 7,064
    Message 3 of 10

    Re: T400 Integrated Graphics

    Hey Jason.

     

    I am so glad a fellow GNOME maintainer is in the same boat Smiley Happy

     

    Eitan (Accerciser), eeejay on gimpnet

    jdclucidly
    Paper Tape
    Posts: 8
    Registered: ‎09-09-2008
    Location: Kansas City
    Views: 6,997
    Message 4 of 10

    Re: T400 Integrated Graphics

    Bug report here. Please add any details that you can provide.

     

    https://bugs.freedesktop.org/show_bug.cgi?id=17507

    legolas
    Punch Card
    Posts: 52
    Registered: ‎08-13-2008
    Location: USA & Middle East.
    Views: 6,822
    Message 5 of 10

    Re: T400 Integrated Graphics

    This is a very bad news for me Smiley Sad
    I was intended to get T400 and use it with Ubuntu 8.10, but it looks like that this is not going to happen.
    Is there any possibility that lenovo issue a patch for it?

    Thanks
    eeejay
    Paper Tape
    Posts: 4
    Registered: ‎09-09-2008
    Location: Seattle
    Views: 6,820
    Message 6 of 10

    Re: T400 Integrated Graphics

    If you follow the f.d.o. link above you will see that it is solved.

    I think this will make an excellent linux computer, just a few kinks on the way.

    Retired Moderator
    Retired Moderator
    Posts: 1,184
    Registered: ‎11-20-2007
    Location: Iowa, USA
    Views: 6,799
    Message 7 of 10

    Re: T400 Integrated Graphics


    eeejay wrote:

    If you follow the f.d.o. link above you will see that it is solved.

    I think this will make an excellent linux computer, just a few kinks on the way.


    As is to be expected when you have a new technology computer. I remember all the trouble I had when I first got this R61 (early 2007) with the Intel 4965 wireless card. It was months before any distro fully supported it. Now every one does.

    ______________________________________________________
    T60 2623-D7U, 3 GB Ram. Dual boot XP and Linux Mint.
    T400 2765-T7U Windows 7

    Registered Linux User #160145

    FYI: I am not employed by Lenovo
    legolas
    Punch Card
    Posts: 52
    Registered: ‎08-13-2008
    Location: USA & Middle East.
    Views: 6,778
    Message 8 of 10

    Re: T400 Integrated Graphics

    Yeah it looks to be a software problem and not a Lenovo one.  

    Based on eeejay experince we can expect to have an smooth installation of Ubuntu 8.10 on  a T400. 

    I really like Ubuntu and for sure the first thing that I will do is removing the windows and loading the Ubutnu.

    I am just thinking whether Lenovo refund the windows price in US or not? because I am not going to use windows even for one hour.

     

     

     

     

    guptaxpn
    What's DOS?
    Posts: 1
    Registered: ‎09-26-2008
    Location: Virginia
    Views: 6,552
    Message 9 of 10

    Re: T400 Integrated Graphics

    So how's the t400 working in Intrepid now?

     

    integrated camera?

     

    How's the rest of the system work in Ubuntu Intrepid?

     

    I'm thinking about buying this in order to dual boot with a windows and ubuntu

     

    is this a good buy?

     

    Can I expect for this system to work with Ubuntu in a few months if not right away...I can wait up until about March until I NEED a fully working machine...

     

    but I NEED a laptop...I'd like to buy a sturdy thinkpad...but I might have to go get a dell...

     

    urgh...

     

    Why can't system manufacturers make their systems "just work"  with OS's?

     

    Thanks, what are your current experiences?

    garytr23
    Token Ring
    Posts: 218
    Registered: ‎09-12-2008
    Location: Atlanta, GA USA
    Views: 6,135
    Message 10 of 10

    Re: T400 Integrated Graphics

    dude... it's really hard to make a hardware product according to if software works with it and then test it with everything.  It's much easier to do it by industry standards.  Plus software can change easily, hardware can't.  Hardware has to implemented first and software can change to suit it.  It's been that way for a while, like 60 years since the computer has been invented.  ...rant over

     

     

    If you really need one that you know will work, go buy a t61 or older laptop, but I suspect the t400's will work fine very soon as Intel is really on the ball with linux lately.  I'm getting an SL300 and I expect linux to work smoothly.

    Lenovo SL300 Owner
    earning an MSECE at GATech, with undergrad in BME.

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