More info on the issue: The display is connected to motherboard via mDP cable. The memory contains two 16gb memory sticks. I don't know whether the issue has something to do with the resolution. The resolution of Grub2 is 1920*1080 when Secure Boot is enabled, and it is 1024*768 when Secure Boot is disabled. This patch still does not work: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1785033/+attachment/5170756/+files/0001-i386-linux-Add-support-for-ext_lfb_base.patch
Hope this info helps a bit to fix the issue. binnan hao <haobin...@gmail.com> 于2018年8月3日周五 下午1:30写道: > Ok, thanks for the update. > > Steve McIntyre <st...@einval.com> 于2018年8月3日周五 下午12:17写道: > >> On Fri, Aug 03, 2018 at 11:54:27AM +0800, binnan hao wrote: >> >How to cooperate with debugging? >> >> For now, disable secure boot. We'll be announcing shortly once we have >> everything ready. >> >> -- >> Steve McIntyre, Cambridge, UK. >> st...@einval.com >> Dance like no one's watching. Encrypt like everyone is. >> - @torproject >> >> > > -- > *Hao Binnan* > *Isoo (Qinhuangdao) software development Co., Ltd. (China)* > http://www.eassos.com > > PGP Public Key: 4096R/9EF21740 / 9678 1E8C B21E 1E60 3997 811D F83B B359 > 9EF2 1740 > haobinnan <haobin...@gmail.com> > -- *Hao Binnan* *Isoo (Qinhuangdao) software development Co., Ltd. (China)* http://www.eassos.com PGP Public Key: 4096R/9EF21740 / 9678 1E8C B21E 1E60 3997 811D F83B B359 9EF2 1740 haobinnan <haobin...@gmail.com>