I would look into a new video driver. Which driver were you using?

-Miles 

> On Feb 23, 2018, at 17:11, Steve Talbott <ste...@natureinstitute.org> wrote:
> 
> Greetings, all --
> 
> Courtesy of an SL7 kernel and firmware update yesterday (yum details
> below), I get an eternal black screen upon booting not only the new kernel:
> 
>   kernel-3.10.0-693.17.1.el7.x86_64
> 
> but also the previous one:
> 
>   kernel-3.10.0-693.2.2.el7.x86_64
> 
> and the one before that, as well as the rescue kernels in my grub menu  So
> I have lost all useful access to my computer. I can, however, access the
> disk and all my files by mounting them from a 7.3 live install disk. My
> computer is an HP Pavilion desktop.
> 
> The command I executed was simply:
> 
>  # yum update
> 
> Updates other than the kernel occur automatically, and, as you can see
> from the above, it was a fair while since I had last updated the kernel.
> My system was initially installed as 7.3. I've never been quite clear,
> based on seemingly contradictory indications, whether it is now "on the
> way" to 7.4, or is already a fully qualified 7.4 system. It's whatever the
> automatic updates (and my occasional kernel updates) have given me.
> 
> I am not competent to do much with the messages from /var/log/messages,
> but as far as I can tell they look more or less normal. I don't see any
> sign of some glaring fatal error. If someone would like me to extract a
> relevant subset of them, I should be able to do so.
> 
> I gather that the yum updates can't be rolled back.  Any advice on how to
> proceed from here? (This is secondary, but it would be temporaily helpful
> if I could chroot to the root of my filesystem from the live install DVD,
> and do some work. The live install disk doesn't seem to give an option of
> going into rescue mode.)
> 
> The yum log shows:
> 
> Feb 21 18:12:14 Updated: kernel-tools-libs-3.10.0-693.17.1.el7.x86_64
> Feb 21 18:12:19 Updated: linux-firmware-20170606-58.gitc990aae.el7_4.noarch
> Feb 21 18:12:20 Updated: kmod-20-15.el7_4.7.x86_64
> Feb 21 18:12:28 Installed: kernel-3.10.0-693.17.1.el7.x86_64
> Feb 21 18:12:29 Updated: kernel-tools-3.10.0-693.17.1.el7.x86_64
> Feb 21 18:12:29 Updated: iwl135-firmware-18.168.6.1-58.el7_4.noarch
> Feb 21 18:12:30 Updated: iwl6000g2a-firmware-17.168.5.3-58.el7_4.noarch
> Feb 21 18:12:30 Updated: iwl3945-firmware-15.32.2.9-58.el7_4.noarch
> Feb 21 18:12:30 Updated: iwl2030-firmware-18.168.6.1-58.el7_4.noarch
> Feb 21 18:12:31 Updated: iwl5000-firmware-8.83.5.1_1-58.el7_4.noarch
> Feb 21 18:12:31 Updated: iwl2000-firmware-18.168.6.1-58.el7_4.noarch
> Feb 21 18:12:33 Updated: kernel-headers-3.10.0-693.17.1.el7.x86_64
> Feb 21 18:12:43 Installed: kernel-devel-3.10.0-693.17.1.el7.x86_64
> Feb 21 18:12:44 Updated: iwl7265-firmware-22.0.7.0-58.el7_4.noarch
> Feb 21 18:12:45 Updated: iwl7260-firmware-22.0.7.0-58.el7_4.noarch
> Feb 21 18:12:45 Updated: iwl6050-firmware-41.28.5.1-58.el7_4.noarch
> Feb 21 18:12:45 Updated: 1:iwl1000-firmware-39.31.5.1-58.el7_4.noarch
> Feb 21 18:12:46 Updated: iwl6000-firmware-9.221.4.1-58.el7_4.noarch
> Feb 21 18:12:46 Updated: iwl4965-firmware-228.61.2.24-58.el7_4.noarch
> Feb 21 18:12:46 Updated: iwl6000g2b-firmware-17.168.5.2-58.el7_4.noarch
> Feb 21 18:12:47 Updated: iwl100-firmware-39.31.5.1-58.el7_4.noarch
> Feb 21 18:12:47 Updated: iwl105-firmware-18.168.6.1-58.el7_4.noarch
> Feb 21 18:12:47 Updated: kmod-libs-20-15.el7_4.7.x86_64
> Feb 21 18:12:48 Updated: iwl5150-firmware-8.24.2.2-58.el7_4.noarch
> Feb 21 18:12:48 Updated: iwl3160-firmware-22.0.7.0-58.el7_4.noarch
> 
> Many thanks.
> 
> Steve Talbott
> The Nature Institute:  
> https://urldefense.proofpoint.com/v2/url?u=http-3A__natureinstitute.org&d=DwIFAw&c=O3LcjD-V2Iepl5V0N1424A&r=VCvRwPOrm0njzjSrvx26Ik46vMGFCQNOuW-so6eZTdM&m=YcfoHN6QV5cyK8J-ipYwmgr5xqwQEaCppdyWGY6gWgU&s=f3OIgz7HGMFHdr_o1J9vWN7aPdI6_gQT956LiVDZ0ZA&e=
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