Am 15.05.2013 15:00, schrieb Alex Deucher:
On Tue, May 14, 2013 at 9:23 PM, Dave Airlie <airlied@xxxxxxxxx> wrote:
From: Dave Airlie <airlied@xxxxxxxxxx>
When UMS was deprecated it removed support for nomodeset commandline
we really want this in distro land so we can debug stuff, everyone
should fallback to vesa correctly.
v2: oops -1 isn't used anymore, restore original behaviour
-1 is default, so we can boot with nomodeset on the command line,
then use radeon.modeset=1 to override it for debugging later.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Whoops. Looks good to me. Do you want me take this patch through my
tree or do you want to apply it?
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
I was really wondering what that code does exactly while removing it,
now I know. Patch is:
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/radeon/radeon_drv.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index d33f484..094e7e5 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -147,7 +147,7 @@ static inline void radeon_unregister_atpx_handler(void) {}
#endif
int radeon_no_wb;
-int radeon_modeset = 1;
+int radeon_modeset = -1;
int radeon_dynclks = -1;
int radeon_r4xx_atom = 0;
int radeon_agpmode = 0;
@@ -456,6 +456,16 @@ static struct pci_driver radeon_kms_pci_driver = {
static int __init radeon_init(void)
{
+#ifdef CONFIG_VGA_CONSOLE
+ if (vgacon_text_force() && radeon_modeset == -1) {
+ DRM_INFO("VGACON disable radeon kernel modesetting.\n");
+ radeon_modeset = 0;
+ }
+#endif
+ /* set to modesetting by default if not nomodeset */
+ if (radeon_modeset == -1)
+ radeon_modeset = 1;
+
if (radeon_modeset == 1) {
DRM_INFO("radeon kernel modesetting enabled.\n");
driver = &kms_driver;
--
1.8.1.2
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