[Bug 102800] DRI_PRIME regression- radeon: Failed to allocate virtual address for buffer

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102800

--- Comment #7 from higuita at gmx.net ---
I tried to downgrade the kernel to 4.11, 4.10 and 4.9 and i failed to enable
DRI_PRIME on the dedicated card, always with the same error. I then tried to
downgrade the mesa and libdrm to the distro original version and also, failed
to enabled the card...

So yes, the card worked in the past with DynPwr, but now i'm unable to enable
it... Maybe some other update, firmware, whatever is also messing this. I do
recall being able to boot one older kernel and have the card working, but
booting with the more recent, it failed... all this around june

I will try to boot from a liveCD, to try to get it working again and try to
understand what else is causing this.

Anyway, using runpm=0 works and the problems seems to be always with the
kernel/atombios being unable to re-enable the card after shut it down

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