It's even worse with kernel 4.8-rc1. It now fails on first resume
attempt - shows screen with time and logo but no login prompt and
requires hard reboot.
System: Host: G50 Kernel: 4.8.0-040800rc1-generic x86_64 (64 bit gcc: 6.1.1)
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
CPU: Quad core AMD A6-6310 APU with AMD Radeon R4 Graphics (-MCP-) cache:
8192 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm) bmips:
14372
clock speeds: max: 1800 MHz 1: 1800 MHz 2: 1600 MHz 3: 1800 MHz 4:
1800 MHz
Graphics: Card: Advanced Micro Devices [AMD/ATI] Mullins [Radeon R4/R5
Graphics] bus-ID: 00:01.0
Display Server: X.Org 1.18.3 drivers: ati,radeon (unloaded:
fbdev,vesa) Resolution: 1366x768@59.99hz
GLX Renderer: Gallium 0.4 on AMD MULLINS (DRM 2.46.0, LLVM 3.8.0)
GLX Version: 3.0 Mesa 11.2.0 Direct Rendering: Yes
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Packages, which is subscribed to pm-utils in Ubuntu.
https://bugs.launchpad.net/bugs/1528735
Title:
Suspend fails every second time on some laptops in UEFI mode
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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