Re: Commit 96a4c8d50de20da865296a380b996f73204d6b34 breaks PowerBook LVDS
On Tue, 2010-03-16 at 10:56 -0400, Alex Deucher wrote:
2010/3/16 Michel Dänzer mic...@daenzer.net:
Commit 96a4c8d50de20da865296a380b996f73204d6b34 ('drm/radeon/kms: fix
i2c prescale calc on older radeons') breaks LVDS on my RV350 PowerBook
again. Reverting just that commit on top of drm-radeon-testing commit
589468458fa964c2020e23e4d9353be2ef8bd3be fixes it.
Do any of the suggestions on bug 26430 help?
http://bugs.freedesktop.org/show_bug.cgi?id=26430
I've tried i2c_clock = 50/10/100 and m = loop - 1, no luck. I also added
debugging output to verify that sclk seems sane the calculations seem to
take effect as expected:
[ 59.138772] [drm] sclk=44550
[ 59.138775] [drm] nm=2227
[ 59.138779] [drm] loop=48 n=47 m=46 = prescale=0x2f2e
So, did that commit actually fix anything? :} It regresses at least for
me and doesn't seem to help for the bug it claims it 'should fix'...
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Re: Commit 96a4c8d50de20da865296a380b996f73204d6b34 breaks PowerBook LVDS
2010/3/17 Michel Dänzer mic...@daenzer.net:
On Tue, 2010-03-16 at 10:56 -0400, Alex Deucher wrote:
2010/3/16 Michel Dänzer mic...@daenzer.net:
Commit 96a4c8d50de20da865296a380b996f73204d6b34 ('drm/radeon/kms: fix
i2c prescale calc on older radeons') breaks LVDS on my RV350 PowerBook
again. Reverting just that commit on top of drm-radeon-testing commit
589468458fa964c2020e23e4d9353be2ef8bd3be fixes it.
Do any of the suggestions on bug 26430 help?
http://bugs.freedesktop.org/show_bug.cgi?id=26430
I've tried i2c_clock = 50/10/100 and m = loop - 1, no luck. I also added
debugging output to verify that sclk seems sane the calculations seem to
take effect as expected:
[ 59.138772] [drm] sclk=44550
[ 59.138775] [drm] nm=2227
[ 59.138779] [drm] loop=48 n=47 m=46 = prescale=0x2f2e
So, did that commit actually fix anything? :} It regresses at least for
me and doesn't seem to help for the bug it claims it 'should fix'...
It fixed r1xx for me. Also, the prescale is actually applied to the
sclk, to I think it was just luck that it worked with the reference
clock. It just happened to be the right combination of numbers...
All my cards worked fine with both algos :/
Alex
--
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Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
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Commit 96a4c8d50de20da865296a380b996f73204d6b34 breaks PowerBook LVDS
Commit 96a4c8d50de20da865296a380b996f73204d6b34 ('drm/radeon/kms: fix
i2c prescale calc on older radeons') breaks LVDS on my RV350 PowerBook
again. Reverting just that commit on top of drm-radeon-testing commit
589468458fa964c2020e23e4d9353be2ef8bd3be fixes it.
--
Earthling Michel Dänzer |http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer
--
Download Intel#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
--
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Re: Commit 96a4c8d50de20da865296a380b996f73204d6b34 breaks PowerBook LVDS
2010/3/16 Michel Dänzer mic...@daenzer.net:
Commit 96a4c8d50de20da865296a380b996f73204d6b34 ('drm/radeon/kms: fix
i2c prescale calc on older radeons') breaks LVDS on my RV350 PowerBook
again. Reverting just that commit on top of drm-radeon-testing commit
589468458fa964c2020e23e4d9353be2ef8bd3be fixes it.
Do any of the suggestions on bug 26430 help?
http://bugs.freedesktop.org/show_bug.cgi?id=26430
Alex
--
Earthling Michel Dänzer | http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer
--
Download Intel#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
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Re: Commit 96a4c8d50de20da865296a380b996f73204d6b34 breaks PowerBook LVDS
On Tue, 2010-03-16 at 10:56 -0400, Alex Deucher wrote:
2010/3/16 Michel Dänzer mic...@daenzer.net:
Commit 96a4c8d50de20da865296a380b996f73204d6b34 ('drm/radeon/kms: fix
i2c prescale calc on older radeons') breaks LVDS on my RV350 PowerBook
again. Reverting just that commit on top of drm-radeon-testing commit
589468458fa964c2020e23e4d9353be2ef8bd3be fixes it.
Do any of the suggestions on bug 26430 help?
http://bugs.freedesktop.org/show_bug.cgi?id=26430
I can try, but it'll probably take a while...
--
Earthling Michel Dänzer |http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer
--
Download Intel#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
--
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