Bug 29575

Summary: My radeon 4570 mobile not work under linux for kms (kernel mode settings)
Product: xorg Reporter: BRULE Herman <alpha_one_x86>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg
none
Xorg log
none
possible fix
none
dmesg after patch none

Description BRULE Herman 2010-08-14 04:54:00 UTC 
Hello, with the last git kernel 2.6.35.15. With the last packages (xorg, drivers, libdrm, ...). I'm under gentoo. My graphic card not work:
Dmesg:
http://pastebin.com/EVTap9nF
Config's part:
http://pastebin.com/KNri9C0w
Config's part:
http://pastebin.com/Xsp7aD4M
DDX drivers seam work for 2D and detect the correct resolution.

Thanks to support my card.
Comment 1 BRULE Herman 2010-08-14 04:57:00 UTC 
I have dell studio 15 (dell studio 1555) with ati radeon 4570. The kms not work at all.
Comment 2 Alex Deucher 2010-08-16 06:52:56 UTC 
Please attach your entire dmesg and your ums xorg log.
Comment 3 BRULE Herman 2010-08-16 07:05:57 UTC 
Created attachment 37896 [details] [review]
dmesg
Comment 4 BRULE Herman 2010-08-16 07:06:28 UTC 
Created attachment 37897 [details] [review]
Xorg log
Comment 5 BRULE Herman 2010-08-16 07:07:33 UTC 
it's good? With old kernel it's try well too switch to kms, not with this kernel.
Comment 6 Alex Deucher 2010-08-16 07:26:34 UTC 
Ok, for some reason the kernel is not able to access the vbios rom while the the ums driver is able to.  Did kms used to work on your card?  If so, which kernel?
Comment 7 BRULE Herman 2010-08-16 07:38:28 UTC 
I have try 2.6.34 branch, and this kernel what I try is the kernel 2.6.35-git14 (gentoo) on core2duo linux x86_64
Comment 8 BRULE Herman 2010-08-22 23:29:32 UTC 
Other behavior, for have 3D acceleration I need activate in the kernel:
Device Drivers -> Graphics support -> VGA Arbritration
Device Drivers -> Graphics support -> Laptop Hybrid Graphics - GPU switching support
And disable:
Device Drivers -> Graphics support -> DRM -> kms for radeon
Comment 9 Alex Deucher 2010-08-23 00:02:33 UTC 
Created attachment 38088 [details] [review]
possible fix

Does this kernel patch fix kms?
Comment 10 BRULE Herman 2010-08-23 11:41:28 UTC 
Created attachment 38108 [details]
dmesg after patch
Comment 11 BRULE Herman 2010-08-23 11:42:23 UTC 
Same after your patch., see the dmesg after patch
Comment 12 BRULE Herman 2010-08-23 13:29:37 UTC 
More info: Which this patch I have NO 3D AT ALL when kms is disabled.
Comment 13 Adam Jackson 2018-06-12 19:06:30 UTC 
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.

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