Opened 3 years ago

Closed 3 years ago

#17692 closed bug (fixed)

intel_extreme: changing brightness turns off backlight

Reported by: rjzak Owned by: pulkomandy
Priority: critical Milestone: R1/beta4
Component: Drivers/Graphics/intel_extreme/coffeelake Version: R1/Development
Keywords: Cc: pulkomandy
Blocked By: Blocking:
Platform: x86-64

Description

It seems that https://cgit.haiku-os.org/haiku/commit/?id=890aa41134bae3a6aa567b693f3af7c3a5fb47a7 introduced changing the brightness for the backlight. On my system it just turns it off.

Version: hrev56001 System: System76 Oryx Pro (oryp5) Display: Integrated graphics Intel i7-9750H

Attachments (2)

syslog.56001 (132.7 KB ) - added by rjzak 3 years ago.
syslog.old.56001 (512.1 KB ) - added by rjzak 3 years ago.

Download all attachments as: .zip

Change History (7)

by rjzak, 3 years ago

Attachment: syslog.56001 added

by rjzak, 3 years ago

Attachment: syslog.old.56001 added

comment:1 by rjzak, 3 years ago

Holding up a flashlight, I could see the screen and tried to adjust brightness, backlight didn't come back on. I was able to reboot, but the backlight was still off. Had to reboot again and blacklist the driver to get the backlight back. That said, I hope the logs contain useful information since there were two reboots.

comment:2 by waddlesplash, 3 years ago

Cc: pulkomandy added
Milestone: UnscheduledR1/beta4
Priority: normalcritical

That sounds bad. We should probably prefer no backlight support on such devices instead of that problem...

comment:3 by pulkomandy, 3 years ago

Owner: changed from rudolfc to pulkomandy
Status: newin-progress

comment:5 by waddlesplash, 3 years ago

Resolution: fixed
Status: in-progressclosed

Fix confirmed. Merged in hrev56006.

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