G200ER does not seem to support 24 bpp, so force the console to
use 32 bpp. The problem was introduced, when commit 73f54d5d9682
("drm/mgag200: Remove special case for G200SE with <2 MiB") changed
the preferred color depth from 32 bit to 24 bit.
A setting of 24 is the correct color depth, but G200ER doesn't seem
to be able to use the respective RGB888 color format. Using 24-bit
color with forced 32 bpp works around the problem.
Reported-by: Wang Yugui <wangyugui@xxxxxxxxxxxx>
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Tested-by: Wang Yugui <wangyugui@xxxxxxxxxxxx>
Fixes: 73f54d5d9682 ("drm/mgag200: Remove special case for G200SE with <2 MiB")
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Jocelyn Falempe <jfalempe@xxxxxxxxxx>
Cc: Dave Airlie <airlied@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
---
drivers/gpu/drm/mgag200/mgag200_drv.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 251a1bb648cc..a222bf76804f 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -262,7 +262,11 @@ mgag200_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (ret)
return ret;
- drm_fbdev_generic_setup(dev, 0);
+ /*
+ * FIXME: A 24-bit color depth does not work with 24 bpp on
+ * G200ER. Force 32 bpp.
+ */
+ drm_fbdev_generic_setup(dev, 32);
return 0;
}
--
2.37.3
