Hi,
On 1/15/26 5:05 PM, Dmitry Baryshkov wrote:
On most of the platforms only some mixers have connected DSPP blocks.
If DSPP is not required for the CRTC, try looking for the LM with no
DSSP block, leaving DSPP-enabled LMs to CRTCs which actually require
those.
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 52 +++++++++++++++++++++++++---------
1 file changed, 38 insertions(+), 14 deletions(-)
this has massively broken things on my x1e device (latitude-7455):
- upon booting into gdm, the internal display is all dark blue
- suspend-resume makes gdm appear fine, then logging in results in
another blue screen, again bypassed by suspend-resume (vt switching back
to gdm makes it appear fine but switching back to the session, it's
still blue)
- OR blindly logging in on the blue gdm makes the session appear
- plugging in an external display makes the blue screen flash constantly
over the contents, there is also a flashing vertical gap between 2
halves of the internal screen (amazing effect) and the external display
doesn't actually refresh the contents under the blue
(https://owo.packett.cool/dbg/dspp-lm-boom.webm)
Consistently across 3 reboots.
Reverted only this commit and it's back to normal, so I'm pretty sure
it's this.
/sys/kernel/debug/dri..: https://owo.packett.cool/dbg/bluewtf.dri
~val
