From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 71141] New: [drm:radeon_uvd_send_upll_ctlreq] *ERROR* Timeout
setting UVD clocks
Date: Tue, 25 Feb 2014 05:34:46 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=71141
Bug ID: 71141
Summary: [drm:radeon_uvd_send_upll_ctlreq] *ERROR* Timeout
setting UVD clocks
Product: Drivers
Version: 2.5
Kernel Version: 3.13.5-1
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: mystery.wd@gmail.com
Regression: No
Created attachment 127361
--> https://bugzilla.kernel.org/attachment.cgi?id=127361&action=edit
kernel log
Hello,
I'm using HP 1220tx Laptop with AMD HD8750M graphics card. Kernel keeps
complaining about setting UVD clocks and whole system stalls about 1 sec when
probing the UVD clocks. I've read the bug report here which reported exact same
problem for HD4570M: https://bugzilla.kernel.org/show_bug.cgi?id=60858 , but
the solution given doesn't help much...
According to that report, I did some research myself:
1. dump of the registers 0x0718, 0x071c and 0x0720
0x0718 0x00000031 (49)
0x071c 0xc080001c (-1065353188)
0x0720 0x3158680e (827877390)
2. fb_div=970296,vclk_div=3,dclk_div=4 at function si_set_uvd_clocks() and that
function failed the first radeon_uvd_send_upll_ctlreq() call with result -110.
Full dmesg attached.
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