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The_Great_Sephiroth
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PostPosted: Thu May 28, 2015 12:51 pm    Post subject: UniChrome graphics freeze... Reply with quote

I am installing Gentoo 64bit on an older Pentium D system to use as a file-server with BTRFS on a RAID1 array. I am attempting to boot into the system and it is freezing at "viafb: Finished I2C bus probing". I have to hold the power button at this point. This board has an S3 UniChrome Pro integrated chip on it. I did select the UniChrome drivers in the kernel for both the frame buffer and another location. I do not have any X stuff selected due to not running X. There is no log created yet as nothing is mounted. What can I do to figure this out?

*EDIT*

Kernel options:
Device drivers -> Graphics support -> Frame buffer devices -> VIA UniChrome Pro and Chrome9

I did not select the DRM driver since I do not run X on my shell-only file-servers.
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schentuu
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PostPosted: Thu May 28, 2015 5:32 pm    Post subject: Reply with quote

Quote:
Finished I2C bus probing

Just i wild gues, but do you really need I2C ?

I dont know if that card is doing some I2C magic, but usually you won't need I2C unless you want to communicate with an Arduino board or something comparable with an µProcessor on it ...
I2C is for communication between µProzessors and their periphery using a bus that uses only 2 wires.

So maybe you would want to try out what happenes if you disable I2C support in the kernel.
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The_Great_Sephiroth
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PostPosted: Fri May 29, 2015 12:39 pm    Post subject: Reply with quote

I have I2C enabled on the system because it has I2C components and I have verified that I have the correct one enabled. I will try disabling it, but what functionality will I lose? This Dell laptop has I2C enabled and it works fine.

*UPDATE*

That did nothing. The viafb driver still hangs on "Finished I2C bus probing". All I2C is disabled, so the driver must do its own thing.
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The_Great_Sephiroth
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PostPosted: Fri May 29, 2015 2:18 pm    Post subject: Reply with quote

I am trying something new. I only built VESA and EFI framebuffers and did not build the VIA one. I also re-enabled I2C. If it works, the VIA driver is bugged.

*UPDATE*

I2C is not to blame. Without the viafb driver, all is good. I am currently syncing with portage and am about to update the system.
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