Ubuntu

Black screen when waking up from suspend in ubuntu 20.04 with Iris Xe graphics

Asked by Sara Strandberg

Hello,

I have installed ubuntu 20.04 on my fujitsu U9311x with Intel Iris Xe Graphics. It goes into suspend fine but when I resume I get a black screen. The computer actually resumes fine (if I have an external monitor hooked up as a second display it shows the login screen) so it must be some graphics problem. I understand that there are issues with ubuntu and the Iris Xe graphics card...

I am running kernel 5.11.0-40-generic. I also tried linux-oem-20.04 and linux-oem-20.04c, but did not fix the suspend problem and broke the touchpad, so I went back to 5.11.0-40-generic.

Any suggestions would be greatly appreciated!

Thanks and cheers,

Sara

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actionparsnip (andrew-woodhead666) said : 		#1

Make sure that you have the latest BIOS. It may help

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Sara (fysikprinsessan) said : 		#2

Thanks a lot for your suggestion!

My laptop is running bios version 2.21 (from July 2021) and the latest one is 2.23. I have been fighting quite a bit now to update the bios, but I am close to giving up. I get a boot failure if I try to boot with a FreeDOS iso usb stick. I can get the laptop to boot with a WinPE iso usb stick, but if I then execute the bios in WinPE it does not flash it (I just get the prompt back). Very annoying. I'm out of ideas.

But in any case, I am not totally convinced that the bios is the problem. It seems like quite a few people are having this problem with a black screen after suspend. I found for instance this page:

https://askubuntu.com/questions/1367188/black-screen-after-wake-from-suspend-on-ubuntu-21-04

where it seems the person got the wake up worked with kernel version 5.4.100 for instance. I tried to install this one, but when I boot with it I get a kernel panic (I had to sign it myself for secure boot so maybe something went wrong).

In the meantime I updated to 21.10, but still the same problem. :-(

Cheers,

Sara

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