| Summary: | no signal to external monitor with KMS | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | boilingbergstrom | ||||||||
| Component: | Driver/Radeon | Assignee: | xf86-video-ati maintainers <xorg-driver-ati> | ||||||||
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> | ||||||||
| Severity: | normal | ||||||||||
| Priority: | medium | ||||||||||
| Version: | unspecified | ||||||||||
| Hardware: | x86 (IA32) | ||||||||||
| OS: | Linux (All) | ||||||||||
| Whiteboard: | |||||||||||
| i915 platform: | i915 features: | ||||||||||
| Attachments: |
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Created attachment 38865 [details]
Xorg Log with KMS on and new_pll set to 0
Created attachment 38866 [details]
Xorg Log with KMS on and new_pll set to 1
What kernel are you using? Can you try this set of kernel patches (against 2.6.36)? http://people.freedesktop.org/~agd5f/pll_fixes/ (In reply to comment #3) > What kernel are you using? Can you try this set of kernel patches (against > 2.6.36)? > http://people.freedesktop.org/~agd5f/pll_fixes/ Do I need to compile my own kernel to do that or just some modules? (In reply to comment #4) > (In reply to comment #3) > > What kernel are you using? Can you try this set of kernel patches (against > > 2.6.36)? > > http://people.freedesktop.org/~agd5f/pll_fixes/ > > Do I need to compile my own kernel to do that or just some modules? compile your own kernel. Alternatively, you can try adding: radeon.new_pll=0 to the kernel command line. and see if that helps. (In reply to comment #5) > (In reply to comment #4) > > (In reply to comment #3) > > > What kernel are you using? Can you try this set of kernel patches (against > > > 2.6.36)? > > > http://people.freedesktop.org/~agd5f/pll_fixes/ > > > > Do I need to compile my own kernel to do that or just some modules? > > compile your own kernel. Alternatively, you can try adding: > radeon.new_pll=0 to the kernel command line. and see if that helps. adding radeon.new_pll=0 to my kernel command line fixed the issue using my 2.6.34 Ubuntu Kernel and my 2.6.35 Arch kernel. :) Do you want me to document anything further? this should be fixed in drm-next. thanks for confirming. |
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Created attachment 38864 [details] Xorg Log with KMS on With KMS off, both my laptop panel and external DVI work. With KMS on my panel works, but no signal to my external monitor. 01:00.0 VGA compatible controller: ATI Technologies Inc M56P [Radeon Mobility X1600] brian@defiant:~$ dpkg -l |grep radeon ii libdrm-radeon1 2.4.18-1ubuntu3+nointelaccel4 Userspace interface to radeon-specific kerne ii radeontool 1.6.1-0ubuntu1 utility to control ATI Radeon backlight func ii xserver-xorg-video-radeon 1:6.13.1-0ubuntu0+ppa2 X.Org X server -- AMD/ATI Radeon display dri brian@defiant:~$ uname -a Linux defiant 2.6.33-29-realtime #1-Ubuntu SMP PREEMPT RT Wed Aug 4 20:14:20 UTC 2010 i686 GNU/Linux