http://bugzilla.kernel.org/show_bug.cgi?id=13276
Summary: setting primary bootdevice (bios) to external vga,
kernel mode setting for internal lvds fails
Product: Drivers
Version: 2.5
Kernel Version: 2.6.29 - 2.6.30-rc5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI)
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=21296)
--> (http://bugzilla.kernel.org/attachment.cgi?id=21296)
my kernel config
My Thinkpad R61 has an bios option to set the primary display to 'vga'.
old behaviour (non-kms): using this, the internal display (lvds) stays black,
if vga(external) is connected and i see everything on the attached vga. (bios,
grub, kernel)
sometimes later X starts and activates the lvds and i have one big desktop.
all's well.
but nowadays with kernel-mode-setting:
booting with kms enabled (config and dmesg attached) i get thing's displayed on
my vga until the kernel sets the video modes. on my vga display all is well,
but the lvds starts ''growing white''.
starting X dosn't fix things, but the lvds is ''resetted'' and restarts to grow
white. sometimes i see some residue of the (vga)framebuffer content at first
until all is white.
i have one warning in my dmesg (see attached), but only after i start X. the
display-distortion is independent of X.
note: setting the primary boot-device in the bios to 'internal display'
everything works just fine, everything is displayed on the lvds, until the
kernel starts setting the modes. from then on, i have nice cloned framebuffer
console. X works also as it should.
i have also attached the Xorg.0.log, maybe you can see something in there.
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