[haiku-bugs] Re: [Haiku] #8457: Blank screen after boot on Radeon Mobility 4670 HD
- From: "kvark" <trac@xxxxxxxxxxxx>
- Date: Tue, 23 Oct 2012 03:09:55 -0000
#8457: Blank screen after boot on Radeon Mobility 4670 HD
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Reporter: kvark | Owner: kallisti5
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Drivers/Graphics/radeon_hd | Version: R1/Development
Resolution: | Keywords: blank radeon
Blocked By: | Blocking:
Has a Patch: 0 | Platform: x86
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Comment (by kvark):
I've noticed 2 important messages in the syslog:
1) VESA knows about the native panel mode (1366x768), which is a single
mode reported under additional modes section. I have a feeling that these
additional (or "detailed") modes should be marked somehow on our end,
because they are always relevant (in contrast to ones in the standard mode
list).
2) radeon_hd does not even attempt to set the incorrectly detected mode
(1400x1050). Instead, it tries to switch to 1024x768. As far as I got,
it's the app_server that calls the accelerant to switch to this mode. I
have no idea why that happens, and will look into that; however, it's all
new to me, so the digging process is very slow :(
Any help and thoughts on the matter are very welcome!
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Ticket URL: <http://dev.haiku-os.org/ticket/8457#comment:17>
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