Bug 101491 - Can't wake up the dedicated graphics card unless power management is disabled
Summary: Can't wake up the dedicated graphics card unless power management is disabled
Status: NEW
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Radeon (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact:
Depends on:
Reported: 2017-06-18 19:28 UTC by drkdfndr
Modified: 2017-06-26 14:24 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

dmesg output (87.89 KB, text/plain)
2017-06-18 19:28 UTC, drkdfndr
no flags Details
lspci -k output (3.77 KB, text/plain)
2017-06-18 19:29 UTC, drkdfndr
no flags Details
add workaround (1.24 KB, patch)
2017-06-19 16:55 UTC, Alex Deucher
no flags Details | Splinter Review

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Description drkdfndr 2017-06-18 19:28:02 UTC
Created attachment 132031 [details]
dmesg output

I have a ASUS K53TK with a AMD A6-3420M. It has an integrated graphics card the AMD HD 6520G, and a dedicated one HD 7670M.
I am only able to use the dedicated card if I set the parameter "radeon.runpm=0".
Otherwise xrandr only sees one provider, and DRI_PRIME=1 can't render any program.

At boot time, if I don't disable the power management I get several error like [  458.460874] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xFFFFFFFF).
Comment 1 drkdfndr 2017-06-18 19:29:24 UTC
Created attachment 132032 [details]
lspci -k output
Comment 2 Alex Deucher 2017-06-19 16:55:54 UTC
Created attachment 132063 [details] [review]
add workaround

PX is known to be broken on K53TK systems.  Add a quirk for another variant.

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