Screen blanking/Power Save on AMD/Radeon Video Card

Greetings All,

I recently replaced an old (no longer supported) Nvidia card with a new AMD/Radeon based graphics card.
Everything seems to be working ok EXCEPT that the ‘energy saver’ process no longer appears to be functional.

I can set the timer in the System Settings, and the screen will go black for a few seconds.
However, about 5-10 seconds later, the full display is returned.

In the interest of saving a few watts of power (and extending the life of my monitor), it would be nice to get this working.
This DID work on the NVIDIA video card prior to removal.
Any help or suggestions are appreciated.

Video card:Biostar/Radeon RX 550
lspic reports:0a:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Lexa PRO [Radeon 540/540X/550/550X / RX 540X/550/550X] (rev c7)
Suse level:15.2
Motherboard:ASUS X370-Pro
Processor:AMD Ryzen 5 2600


Richard Rosa
Discussed here but no good news.

I’ve submitted a Bug Report a few minutes ago …

Try to use AMD’s driver:

Radeon™ Software for Linux® 20.30 Highlights

Introducing full support for SLED/SLES 15 SP 2

Any progress on this bug?

While waiting for a possible solution, I have done the following:

o Detach ALL usb devices including the mouse.
o Remove all cards except the Video card.
o Move the Video card to a different slot
o Download and install the latest AMD driver from AMD’s site. (v. 20.40-1147287)

None of these actions has made any difference.

However, to determine if this is a defect in the card, or a defect in software,
I installed a Windows system on a different partition.
Under Windows, the screen will blank at the allotted time AND STAY BLANKED.
This indicates to me that this is a software (not a hardware) issue.

I REALLY want to have screen blanking back again in SUSE.
I’m about ready to eat the cost of this card and replace it with a NVIDIA card…


Richard Rosa

Try to update BIOSes for video card (cannot find this one) and motherboard.

Try to use Mesa 3D drivers (first from standard, second from Experimental repo).
Uninstall AMD’s drivers before installing Mesa 3D ones.

Try another DEs.

Thanx, but:

There is no ‘bios’ update for the card available. The MB has the latest and the greatest, and Mesa drivers are already in place.

I don’t think this is a problem with the card (or the Motherboard). As I indicated, an older Nvidia card had no issues with power save.
Power save with the current card & Motherboard works flawlessly on Windows (and NO, I don’t have any desire to be running Windows!).
The problem most likely is with Linux software.
I don’t know if it is something with the AMD driver, or some over-zealous application or service that keeps waking up the display.

What is a ‘DEs’?

Richard Rosa

Desktop environments.

You mean this one?
Consider adding to it (or at least subscribing to it).