Fresh Install In Lenovo T420s Gets Stuck

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I did a fresh installation of CentOS7 on a Lenovo T420s. But after rebooting the machine after the installation process finished I get messages of CPU got stuck for 22sec. This happens after logging in at gdm. I can’t do anything – the machine hangs completely. Switching to tty only works before logging in at gdm.

I really don’t have an idea.

My other T420 (without “s”) works fine.

Any help is appreciated.

Thanks in advance Tim

2 thoughts on - Fresh Install In Lenovo T420s Gets Stuck

  • Which Video card do you have in the t420s ? my t430s has an Intel one
    (00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) ) and it works fine, but I had the same issue on my kid’s workstation, using onboard Nvidia chipset. The issue appeared only after the 7.0.1406 -> 7.1.1503 update. What I
    did was just install cinnamon and now my kid uses it when logging through gdm. I’ve never had time to investigate the gnome3/gnome-shell issue, but wondering if there was a mismatch between hardware and software rendering. Can you try to just install CentOS 7.0.1406 (LiveCD would be enough to test) and see if that works ? That will not fix the issue for a yum update though, but at least that would give directions.

  • I changed a BIOS setting for the grafic device from nvidia optimus to integrated. Now it works.

    Thanks!

    Am 2. September 2015 08:03:09 MESZ, schrieb Fabian Arrotin :