Opened 3 years ago

Closed 2 years ago

#17706 closed bug (fixed)

[intel_extreme] TigerLake-LP GT2 screen display downscaled by 1/4

Reported by: diver Owned by: rudolfc
Priority: normal Milestone: R1/beta4
Component: Drivers/Graphics/intel_extreme/tigerlake Version: R1/Development
Keywords: Cc:
Blocked By: Blocking: #17683
Platform: All

Description

hrev56016 x86_64 uefi.

Attachments (6)

syslog​ (239.5 KB ) - added by diver 3 years ago.
photo_2022-04-17_20-00-56.jpg​ (148.4 KB ) - added by diver 3 years ago.
photo_2022-04-17_20-01-01.jpg​ (139.6 KB ) - added by diver 3 years ago.
syslog.2​ (154.8 KB ) - added by diver 3 years ago.
syslog.3​ (215.6 KB ) - added by diver 3 years ago.
syslog.4​ (150.2 KB ) - added by diver 2 years ago.

Download all attachments as: .zip

Change History (24)

by diver, 3 years ago

Attachment: syslog​ added

by diver, 3 years ago

Attachment: photo_2022-04-17_20-00-56.jpg​ added

by diver, 3 years ago

Attachment: photo_2022-04-17_20-01-01.jpg​ added

comment:1 by korli, 3 years ago

isn't the native resolution 1920x1080? this is what the app_server selected.

comment:2 by diver, 3 years ago

This is correct. I changed it to a lower resolution to make text more readable. However, that didn't affect the black parts.

comment:3 by korli, 3 years ago

It could be that it uses the inteface E: 

KERN: intel_extreme: SetDisplayMode: Digital Display Interface E 1920x1200
2662	KERN: intel_extreme: SetDisplayMode: Hardware mode will actually be 1024x768 at 60Hz

Actually the code ignores that the EDID is available and just uses the VBT.

comment:4 by korli, 3 years ago

Could you please check with ​https://review.haiku-os.org/c/haiku/+/5212 ? Thanks.

by diver, 3 years ago

Attachment: syslog.2​ added

comment:6 by diver, 3 years ago

Visually nothing changed.

comment:7 by korli, 3 years ago

Thanks, the loop didn't do anything. I updated the change.

comment:9 by diver, 3 years ago

This one worked right away. Very cool! :)

by diver, 3 years ago

Attachment: syslog.3​ added

comment:10 by diver, 3 years ago

I also noticed that changing brightness would freeze every now and then for a split of a second.

comment:11 by korli, 3 years ago

Milestone: Unscheduled → R1/beta4
Resolution: → fixed
Status: new → closed

Applied in hrev56024.

Each brightness change logs in the syslog, this could add a lag.

comment:12 by korli, 3 years ago

Blocking: 17683 added

comment:13 by diver, 2 years ago

Resolution: fixed
Status: closed → reopened

Tested again on hrev56320 and it looks like the problem is back. Upon boot resolution is set to 1024x768. When I set it to 1920x1200 all is good.

by diver, 2 years ago

Attachment: syslog.4​ added

comment:14 by korli, 2 years ago

is it a laptop or not?

comment:15 by diver, 2 years ago

It is a laptop.

comment:16 by korli, 2 years ago

OK. It looks like the check whether the transcoder is enabled for eDP doesn't work on this generation. Please test with an image built with ​https://review.haiku-os.org/c/haiku/+/5518

comment:17 by diver, 2 years ago

Fix confirmed, thanks! :)

comment:18 by korli, 2 years ago

Resolution: → fixed
Status: reopened → closed

Applied in hrev56322.

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