[lfs-support] Blank screen when booting with 3.13.3 kernel. - LFS 7.5

rhubarbpieguy at gmail.com rhubarbpieguy at gmail.com
Wed Mar 12 14:40:30 PDT 2014

On 03/12/14 12:11, Duc Tran wrote:
> On 03/12/2014 11:11 PM, Armin K. wrote:
>> On 03/12/2014 05:09 PM, rhubarbpieguy at gmail.com wrote:
>>> On 03/12/14 10:19, Merell L. Matlock, Jr. wrote:
>>>> On 03/12/14 10:54, Armin K. wrote:
>>>>> On 03/12/2014 03:46 PM, rhubarbpieguy at gmail.com wrote:
>>>>>> I've built LFS 7.5 with the 3.13.3 kernel but receive a blank screen
>>>>>> upon booting.  As an experiment, I unselected AGP Support in my kernel
>>>>>> configuration and can successfully boot.  My thinking was perhaps
>>>>>> there's a problem with AGP support.
>>>>>> However, as I'm running LFS/BLFS 7.4, I compiled that 3.10.10 kernel in
>>>>>> my LFS 7.5 build and CAN successfully with with AGP support.  I compiled
>>>>>> the kernel with the same .config I used when compiling the LFS 7.5
>>>>>> 3.13.3 kernel.  I also received a blank screen with the 3.13.5 kernel,
>>>>>> so the problem isn't unique to 3.13.3.
>>>>>> It appears there's a problem with newer kernels.  However, I certainly
>>>>>> can't ignore the possibility of user error, as that's my "talent."  A
>>>>>> few questions:
>>>>>> Does it make sense it's a kernel version problem?
>>>>>> If not, what might I have done wrong?
>>>>>> Will there be problems running an older kernel (3.10.10) than the kernel
>>>>>> with which I built LFS 7.5 (3.13.3)?
>>>>> Have you enabled framebuffer console? CONFIG_FRAMEBUFFER_CONSOLE=y
>>>> Similar problem with me; mine was radeon related.  I had to blacklist
>>>> (/etc/blacklist.conf) the radeon module in 7.4 until I had finished
>>>> building X and Mesa.  I also spent almost a week before I found out that
>>>> I also needed firmware for my card as well.  Once I had all the pieces
>>>> in place, I removed the radeon entry from the blacklist, and it boots
>>>> fine, with the open-source drivers.  I test-built 7.5 RC-1, leaving
>>>> radeon totally out of the kernel config, and it booted fine.   I've been
>>>> off on an arc-tangent for awhile, and I'll get back to 7.5 later.
>>>> Merell Matlock
>> Could you post your kern.log from /var/log after you boot? (you can get
>> it from chroot after reboot iirc). Compress it before sending or it
>> might get blocked.
> Try to add "fbcon" into the "/etc/modules.conf" file. Just create a new
> file if the file does not exist.
> Duc Tran.
I created a /etc/modules.conf file containing fbcon with the same result.

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