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<body class='hmmessage'><div style="text-align: left;">> So at this point, you are going to have to start instrumenting code. <br>> We are interested in figuring out which path the code goes down in<br>> lx_framebuffer_size() in drivers/video/geode/lxfb_ops.c.<br>> We are further interested in what happens in geode_has_vsa2() in<br>> arch/x86/kernel/geode_32.c. In particular, the value that is returned<br>> by the inw(VSA_VRC_DATA).<br><br>I am not an expert kernel hacker but if you give me some idea as to what statements to put (like printk) in those code files(lxfb_ops.c and geode_32.c) I can probably do that,compile, run and send you the outputs.<br><br>Please do let me know. Sorry for being unfamiliar with Kernel Debugging. This is a learning phase for me.<br> </div><br>Kushal Koolwal<br><br>I do blog at http://blogs.koolwal.net/<br><br><br><br>______________________<br><table style="height: 24px; font-family: 'Segoe UI',Tahoma,san-serif; font-size: 9pt; color: rgb(0, 153, 204);"><tbody><tr><td><a href="http://im.live.com/Messenger/IM/Home/?source=EML_WLHM_GreaterGood" target="_blank" style="color: rgb(51, 153, 102); text-decoration: none; font-weight: bold;"><img style="border-style: none;" src="http://gfx1.hotmail.com/mail/w2/ltr/i_charity.gif" alt="i'm"></a> EMAILING FOR THE GREATER GOOD</td></tr></tbody></table><br><br><hr id="stopSpelling">> Date: Thu, 12 Jun 2008 17:34:52 -0600<br>> From: jordan.crouse@amd.com<br>> To: kushalkoolwal@hotmail.com<br>> CC: mart.raudsepp@artecdesign.ee; linux-geode@bombadil.infradead.org<br>> Subject: Re: Geode lxfb framebuffer not working<br>> <br>> On 12/06/08 15:28 -0700, Kushal Koolwal wrote:<br>> > >It sounds like your BIOS is horribly misconfigured.<br>> > That might be true however the same configuration (BIOS and Hardware) works fine on a 2.6.22 kernel.<br>> > Also the problem of "/dev/fb0 not present" kicked in when I used the GIT kernel (2.6.26-rc5 release). <br>> > If I use the stable 2.6.25 from kernel.org, I do get those green lines (during boot) and the device /dev/fb0 is present.<br>> <br>> Its all the same problem.<br>> <br>> So at this point, you are going to have to start instrumenting code. <br>> We are interested in figuring out which path the code goes down in<br>> lx_framebuffer_size() in drivers/video/geode/lxfb_ops.c.<br>> <br>> We are further interested in what happens in geode_has_vsa2() in<br>> arch/x86/kernel/geode_32.c. In particular, the value that is returned<br>> by the inw(VSA_VRC_DATA). <br>> <br>> If we know these two things ,then I can formulate an opinion, but I don't<br>> have a GSW system nearby to test.<br>> <br>> Jordan<br>> <br></body>
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