Bug 49794

Summary:

HD5850 clocks are always limited to 400/900

Product:

DRI

Reporter:

ddfs <s.demakov>

Component:

DRM/Radeon

Assignee:

Default DRI bug account <dri-devel>

Status:

RESOLVED MOVED

QA Contact:

Severity:

normal

Priority:

medium

Version:

unspecified

Hardware:

Other

OS:

All

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
hd5850 bios	none
boot clocks	none
UVD clocks	none
Overclocked Radeon HD 5850 BIOS	none
HIS Radeon HD 5850 BIOS	none

Description ddfs 2012-05-11 05:31:25 UTC

cat /sys/kernel/debug/dri/0/radeon_pm_info is reporting default clocks at 400/900 mhz.
Changing power profile to high (which is actually 725/1000 according to bios) only increases the voltage, but clocks are still limited at 400/900.
Also, these values 400/900 match only UVD mode in the graphics card bios.
I suspect the driver uses incorrect bios readings, because the default "boot" value is 725/1000 for my HD5850.

Comment 1 Alex Deucher 2012-05-11 07:59:13 UTC

Please attach a copy of your vbios.

(as root)
(use lspci to get the bus id)
cd /sys/bus/pci/devices/<pci bus id>
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom

Comment 2 ddfs 2012-05-11 08:24:45 UTC

Created attachment 61456 [details]
hd5850 bios

vbios attached

Comment 3 ddfs 2012-05-11 08:33:08 UTC

Created attachment 61457 [details]
boot clocks

Comment 4 ddfs 2012-05-11 08:33:36 UTC

Created attachment 61458 [details]
UVD clocks

Comment 5 ddfs 2012-05-11 08:34:42 UTC

I also attched RBE screenshots with opened vbios.rom

Comment 6 ddfs 2012-05-16 06:47:41 UTC

Any updates on this? Did the attached bios help?

Comment 7 Andrey 2012-05-16 08:47:51 UTC

Created attachment 61719 [details]
Overclocked Radeon HD 5850 BIOS

Same problem here. The only difference is in vendor of videocard and frequencies(I have HIS Radeon HD 5850 with 850/1200, BIOS attached). System uses only limited 400/900(399990 kHz/900000 kHz to be correct).

kernel: 3.3.6
xf86-video-ati: 6.14.4

Comment 8 Andrey 2012-05-16 11:40:21 UTC

Created attachment 61732 [details]
HIS Radeon HD 5850 BIOS

Oops, attached correct rom

Comment 9 Martin Peres 2019-11-19 08:26:53 UTC

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