Bug 42609 - KMS issues with radeon HD6670
Summary: KMS issues with radeon HD6670
Status: RESOLVED OBSOLETE
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-01-19 17:45 UTC by Angelo
Modified: 2013-12-23 14:22 UTC (History)
3 users (show)

See Also:
Kernel Version: -
Subsystem:
Regression: No
Bisected commit-id:

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Description Angelo 2012-01-19 17:45:56 UTC 
Hi all,
not sure to post in the correct category, anyway

i am experiencing a KMS issue with a radeon HD6670

I set up the kernel config to enable KMS/radeon support.
When i boot, depending on the "vga= " modeset, using video=radeonfb and radeon.modeset=1, i get blank screen, or a completely black/white confused screen.
Sometime the kernel boot, other not. Don't matter if i set-up grub to start as  640x480 or 1280x1024.


With same kernel settings, radeon HD5450 was booting correctly, and was then able to use xorg with Gallium3d.

`--> cat /proc/version                                                                                                                                   ~
Linux version 3.1.6 (root@angel3) (gcc version 4.6.2 (Debian 4.6.2-9) ) #1 SMP Thu Jan 19 17:17:13 CET 2012

lspci
01:00.0 VGA compatible controller: ATI Technologies Inc Turks [Radeon HD 6670]

thanks
angelo
Comment 1 Alex Deucher 2012-05-12 03:49:02 UTC 
Does it work ok if you remove all the vga= and radeonfb options?  Please attach your dmesg output and xorg log.
Comment 2 Alexandre Demers 2012-05-12 03:50:43 UTC 
Could it be explained by this bug: https://bugs.freedesktop.org/show_bug.cgi?id=43655
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