On Fri, May 30, 2025 at 05:54:30PM +0800, Yongbang Shi wrote:
From: Baihan Li <libai...@huawei.com>

If the system started with VGA connected, the desktop like GDM cannot get
DP's CRTC when DP device is plugged in, because there is only one crtc
sharing use of VGA and DP. So change VGA to disconnected when DP is
connected.
NAK. I think we discussed this when the previous patch was submitted.

VGA and DP are independent. It should be user's choice whether to use
VGA or DP if both are connected.

Okay, I can use GDM to set which connectors to use, or config Xorg conf file.
But I have an another problem, I think our driver only support one of them 
displaying, can we realize
the clone displaying at the same time? To make DP and VGA shows up simultaneous 
when DP is plugged in,
If the system started with VGA connected.

Thanks,
Baihan.


Fixes: 4c962bc929f1 ("drm/hisilicon/hibmc: Add vga connector detect functions")
Signed-off-by: Baihan Li <libai...@huawei.com>
---
  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 14 +++++++++++++-
  1 file changed, 13 insertions(+), 1 deletion(-)

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