I'm seeing this problem on various versions of Linux Mint from v17.3
Cinnamon with kernel 3.19 to v18 Mate with kernel 4.4 or 4.7. Apart
from the OP problem description of symptoms with yellow text console
warning message, I have suspicion that this problem is also causing the
more severe problem with kernel 4.7 that even the first suspend/resume
results in a system lockup/freeze upon attempting to resume. I think it
may be important to first determine if this problem is specific to a
machine and it's BIOS version. In this case I believe we are talking
mostly, if not only, about Lenovo machines (like mine). I think it is
possible this is a result of a BIOS update by Lenovo to fix a security
hole described below. That said, my notebook's info is below. Note the
BIOS version and date. Also note that the security hole (UEFI
implementations do not properly secure the EFI S3 Resume Boot Path boot
script) is not specific to Lenovo and MANY vendors would have had to
make a similar patch - which might explain suspend/resume problems
reported by various people with other notebook brands. More info can be
found on my LM formum thread:
https://forums.linuxmint.com/viewtopic.php?f=46&t=227168#p1199128
System: Host: G50 Kernel: 4.7.0-040700-generic x86_64 (64 bit gcc: 5.4.0)
Desktop: MATE 1.14.1 (Gtk 3.18.9-1ubuntu3.1)
Distro: Linux Mint 18 Sarah
Machine: System: LENOVO product: 80E3 v: Lenovo G50-45
Mobo: LENOVO model: Lancer 5B2 v: 31900058 STD
Bios: LENOVO v: A2CN38WW(V2.06) date: 07/15/2015
Lenovo Advisory:
https://support.lenovo.com/br/en/product_security/s3_boot_protect
Vulnerability Note VU#976132 http://www.kb.cert.org/vuls/id/976132
UEFI implementations do not properly secure the EFI S3 Resume Boot Path boot
script
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pm-utils in Ubuntu.
https://bugs.launchpad.net/bugs/1528735
Title:
Suspend reboots every second time on Lenovo G50-45
Status in pm-utils package in Ubuntu:
Confirmed
Bug description:
Fresh install of Xubuntu 14.04.3, replacing existing OEM Windows 10.
Install detected UEFI, and installed in UEFI mode. (I have attempted
to change to legacy boot, and got it to a state where it was booting
without /sys/firmware/efi/ being present, but behaviour persisted.)
Suspending the laptop, whether by closing the lid, choosing the
suspend option from the menu, or directly typing "sudo pm-suspend"
works perfectly well... once.
The second attempt to suspend, whether immediately or hours later,
suspends the laptop (I can see the screen turn off, and hear the disk
and fans stop, but a moment later the screen shows bright yellow
console text declaring "Warning!!! Boot script table modified!!!
Please contact your vendor.", and then it hard reboots.
This appears to be a weird interaction between suspend and UEFI
protection, but others have reported that they have had working
suspend when installed alone (and presumably in legacy from the
start), but this behaviour appeared when reinstalled as dual-boot
(when presumably UEFI would have had to be on).
(http://askubuntu.com/questions/675683/suspend-does-not-work-more-
than-once-after-reboot-ubuntu-15-04-dual-boot/712232 and earlier
http://askubuntu.com/questions/651481/boot-script-table-modified-
please-contact-vendor, from different people.)
Beyond the investigations I have done, I know next to nothing about
UEFI, or how Suspend might be interacting with it. Much less why it
appears to work perfectly exactly once.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: pm-utils 1.4.1-13ubuntu0.1
ProcVersionSignature: Ubuntu 4.2.0-22.27~14.04.1-generic 4.2.6
Uname: Linux 4.2.0-22-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Dec 23 13:27:11 2015
InstallationDate: Installed on 2015-12-19 (3 days ago)
InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
SourcePackage: pm-utils
UpgradeStatus: No upgrade log present (probably fresh install)
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