http://bugzilla.kernel.org/show_bug.cgi?id=13720
Summary: [2.6.31] Modesetting on Mobility Radeon X700 displays
black screen
Product: Drivers
Version: 2.5
Kernel Version: 2.6.31-rc1
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI)
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Using the new import of Dave Airlie's Radeon KMS DRI driver, my laptop screen
(LVDS-connected) goes blank and stays blank while using KMS and modeset=1.
Chip is a Modility Radeon X700 in a MSI Megabook M635 (also known as MS-1029)
with a Turion 64 chip running X86-64 userland from Ubuntu (in particular,
Karmic Koala and Kubuntu KDE4). I build my own kernels from mainline to test
and will attach dmesg output, Xorg.0.log output (which also apes the Kernel's
can't inability to find the LVDS connector -- don't be confused, I'm not
complaining about X.org here), and dmesg output. r4xx_atom does not need to be
forced: from reading the source and logs, the chip is identified as ATOMBIOS.
In my own disgnosis, I found that there is a quirk that matches this notebook
in driver/gpu/drm/atombios.c but it is not used. Also, the drm.debug=1 option
shows that the VGA and LVDS connectors are identified but no connector is
assigned to the LVDS encoder, which I believe is why the screen is blank.
--
Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.
------------------------------------------------------------------------------
--
_______________________________________________
Dri-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/dri-devel
