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<body><span class="vcard"><a class="email" href="mailto:dominik232@gmail.com" title="Dominik Klementowski <dominik232@gmail.com>"> <span class="fn">Dominik Klementowski</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95015">bug 95015</a>
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<td>dominik232@gmail.com
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95015#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95015">bug 95015</a>
from <span class="vcard"><a class="email" href="mailto:dominik232@gmail.com" title="Dominik Klementowski <dominik232@gmail.com>"> <span class="fn">Dominik Klementowski</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=123548" name="attach_123548" title="dmesg | grep radeon">attachment 123548</a> <a href="attachment.cgi?id=123548&action=edit" title="dmesg | grep radeon">[details]</a></span>
dmesg | grep radeon
I use Lenovo Z51-70 laptop with Intel HD5500 and discrete Radeon R9 M375.
I wasn't ever be able to switch to faster card and use it with radeon module.
(I only was able to run it with fglrx proprietary driver, but it was running so
ugly so computer wasn't usable at all).
Once I switched (that was kernel 4.4 i guess), but my screen was blank and
after that and I could only reboot laptop to see anything (reboot reaction
normally, CTRL+ALT+DEL)
But content of vgaswitcheroo changed from:
0:IGD:+:Pwr:0000:00:02.0
1:DIS: :DynOff:0000:04:00.0
to:
0:IGD: :Off:0000:00:02.0
1:DIS:+:DynOff:0000:04:00.0
So THERE'S HOPE i thought :D
>From kernel 4.5 I have such error and /sys/kernel/debug/vgaswitcheroo file no
longer exists.
If I could provide some logs, do tests or stuff, just let me know.</pre>
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