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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1528735 Title: Suspend fails every second time on some laptops in UEFI mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1528735/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs