Suspend not working properly (cannot wake up) on Ubuntu 20.04 with NVIDIA

My problem is that I cannot suspend my computer properly. Technically I can, but when I come back and try to reopen it, it just doesn't work. My screen remains black with a blinking line, like a typical writing line _.

My laptop is a HP Pavilion 15-BC519NS Intel Core i5-9300H/8GB/512GB SSD/GTX 1050/15.6".

Here is the output of lspci:

00:00.0 Host bridge: Intel Corporation 8th Gen Core 4-core Processor Host Bridge/DRAM Registers [Coffee Lake H] (rev 07)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 07)
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:17.0 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 10)
00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 (rev f0)
00:1d.5 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #14 (rev f0)
00:1d.6 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #15 (rev f0)
00:1d.7 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #16 (rev f0)
00:1f.0 ISA bridge: Intel Corporation HM470 Chipset LPC/eSPI Controller (rev 10)
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 3 GB Max-Q] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev ff)
02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
04:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter
05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01)

I haven't seen a fix for this anywhere, so I was expecting someone to help me here. Thanks in advance!

I suspect that your problem is related to the latest NVIDIA update, which installs nvidia-driver-460. There is currently a bug with this version and some versions after it. You can subscribe to the bug here: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-460/+bug/1911055

You can workaround the issue until the bug gets resolved by downgrading the NVIDIA driver to a previous version. Follow these steps to downgrade to nvidia-driver-450-server:

1. Open Software & Updates and go to the Additional Drivers tab.

2. Select nvidia-driver-450-server (Using NVIDIA Server Driver metapackage from nvidia-driver-450-server (proprietary)).

   

   You may try other drivers instead of nvidia-driver-450-server, if you wish, and stay with the one that works best for you.

3. Click Apply Changes and wait until the changes are applied.

4. Restart your system.

Suspend should now work as expected!

I had the same issue on an Acer Aspire laptop running Ubuntu 20.04 with NVIDIA. I was using the default driver (nvidia-driver-460). I then tried nvidia-driver-450-server and still didn't have any luck. Then I tried nvidia-driver-418-server and it worked.

Additional Drivers tab in Software & Updates

My advice, keep rolling back the driver and testing until you find one that works.

1. Open Software & Updates -> Additional Drivers tab.
2. Select nvidia-driver-418-server.
3. Click Apply Changes.
4. Reboot system.
5. Test suspend.