#12982: Screen is shifted a few pixels down leaving unused black space on the
top
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Reporter: FridayHaiku | Owner: pulkomandy
Type: bug | Status: assigned
Priority: normal | Milestone: Unscheduled
Component: Drivers/Graphics/intel_extreme | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by kallisti5):
Ok, he undid a lot of those horrible hacks in hrev50512. Looking at the
commits hrev50512 looks to contain the regression somewhere.
Regression causes:
**Strong Maybe**
Things I don't agree with and need some additional research on their
correctness. Intel docs say you *always* need to unlock the panel register
on PCH or they won't change when modified.
* LVDSPort init - No longer unlocking panel registers if PCH
* enable_lvds_panel - No longer unlocking panel registers if PCH
**Weak Maybe**
I want to beleve there was some research to this change as it "feels" ok
```^_^```
* ConfigureTimings - Checking for a transcoder before setting display
timings
I actually see the last change potentially causing the code to loop
forever... if the panel registers aren't unlocked, you can't modify them
to turn the panel on. If you can't modify them, the panel will never turn
on... thus the for loop runs forever.
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Ticket URL: <https://dev.haiku-os.org/ticket/12982#comment:7>
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