Bug 213411
Summary: | Recent kernel builds seem to interfere with AMD dedicated GPU performance on Acer Nitro 5 AN515-42 laptop | ||
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Product: | Drivers | Reporter: | za.open.source |
Component: | Video(DRI - non Intel) | Assignee: | drivers_video-other |
Status: | NEW --- | ||
Severity: | normal | ||
Priority: | P1 | ||
Hardware: | All | ||
OS: | Linux | ||
Kernel Version: | Any kernel greater than 5.3 | Subsystem: | |
Regression: | Yes | Bisected commit-id: | |
Attachments: |
dmesg output
glxinfo output glxinfo output (with DRI_PRIME=1) |
Description
za.open.source
2021-06-11 10:04:14 UTC
Additionally, dmesg and journalctl logs don't seem to contain anything useful in relation to this. Created attachment 297329 [details]
dmesg output
I'm attaching my dmesg output just in case, though I didn't seem to find anything useful during my initial examination of it.
Created attachment 297333 [details]
glxinfo output
Created attachment 297337 [details]
glxinfo output (with DRI_PRIME=1)
Update: I narrowed this down a little bit, in the original report I said it happens regardless of DRI_PRIME setting, but it seems to only be present when DRI_PRIME=1 is used in an attempt to launch 3D loads on the dedicated RX560x. Update 2: A (bad) workaround for this seems to be suspending the latop while a 3D load is running. When I wake it from suspension, the dedicated GPU seems to be running at the proper speed and 3D applications perform normally. It's fairly similar to this bug: https://bugzilla.kernel.org/show_bug.cgi?id=206309 However, considering my positive experience with downstream kernels from other distros, I highly doubt my power supply is faulty. Curiously, while running dmesg -w and doing the suspend trick, I received this: [ 681.123922] amdgpu: dpm has been enabled I grepped the entire dmesg and found that this message ONLY appeared after waking from suspend. Is it possible that amdgpu's dynamic power management component isn't activating at boot and only after suspend on this hardware on modern kernels? |