vt.handoff

For a smooth boot process, we want to display something other than a black screen as early as possible and leave it on screen until the desktop is ready. vt.handoff=7 is part of this. We have the boot loader display an aubergine background (we wanted to have an Ubuntu logo as well, but there are problems with different aspect ratios between the boot loader and the real system, so this is the next best thing). vt.handoff=7 then causes the kernel to maintain the current contents of video memory on virtual terminal 7, which is a new “transparent” VT type. The first time that the kernel is told to switch away from VT 7, either from Plymouth or manually (Alt-F1, etc.), these contents are lost and VT 7 reverts to text mode.

The upshot is that, when everything is working correctly, you get an aubergine background on the way out of the boot loader, then at some point Plymouth displays a logo and a progress indicator on top of that, and then the display manager comes up and smoothly replaces that with a login prompt.

Also, you asked about the search command in GRUB. That is documented in the GRUB manual.

shareimprove this answer
 
    
How i may sacefully unable the option “vt.handoff=7” from my grub.cfg configuration,so,that be it never adding again? – user52456 Mar 28 ’12 at 16:35
    
@deblanck: Edit /etc/grub.d/10_linux as explained here – Serrano May 21 ’12 at 15:01
    
So this is separate from the gfxpayload=keep option in GRUB? i.e. if you get a desirable graphics mode in GRUB menu, and you get the aubergine blank screen and the correct desktop but get “Mode Not Supported” instead of the Plymouth splash, then this is Plymouth’s fault? – Sam Brightman Sep 12 ’15 at 12:04
1  
gfxpayload=keep and vt.handoff=7 are two parts of the same overall scheme; gfxpayload=keep tells GRUB not to switch the video mode back to the firmware default before booting the kernel, and vt.handoff=7 tells the Linux kernel to behave as in my answer above. I don’t know where your error message comes from. – Colin Watson Sep 13 ’15 at 11:05

 

终于被 serverhold

2017-06-28 11:30:58
ceduo.site 被 serverhold

由于

cdn1–>CNAME–>cloudfront.net

cloudfront.net–>origin:data                   # cloudfront distribution 1

data–>CNAME–>ceduo.site

ceduo.site–> A record –> IP                # serverhold

由于最下层被 serverhold,导致最上层 cdn1 (Cloudfront URL) 连接失败

HTTP Response: 503 Service Unavailable。

 

why i915 driver so many bugs

sleep problem:

sleep twice led to machine forever running with black sceen,cannot sleep any more.

hibernation problem:

now or then, black screen on resume from hibernate. the longer the hibernation is, the higher possibility to resume fail.

display problem:

screen flickering(屏幕闪烁)

screen rendering glitching(花屏)

notebook lid problem

after sleep notebook, open lid again, blackscreen.

GPU Hang

sometimes fake BOSD(mouse can move, desktop freeze, no response when click any where.)

immitently(长相相似,找不到昨天看到的那个副词,间或,时不时地)

 

颓废2017.6

Cloudfront Statistics 2017-06-25

6.13_6.25

又颓废了。越是有正事要做,越是偏要找其它事做,我也不知道这种背时,是拖延还是逃避。

如果“看一个人怎么过一天,就知道他怎么过一生”为真,那么我很清楚,继续南辕北辙,我将一事无成。

可是常常躺下,就起不来了。

人本来就轻如鸿毛,细如尘埃,哪怕你今天消失于世间,知道的人也不会有几个。如果不弄出点动静来,那真的白来人世间走一趟了。

蚂蚁有蚂蚁的生活,大象有大象的生活。它们各自有各自的世界。不会因为蚂蚁渺小,它们的勤劳就失去意义;不会因为大象庞大,它们的行动就能造福众生。

如果和无限的宇宙相比,再大的生物都是渺小的,但只要它能在自己的世界找到属于自己的轨迹,那么就足够了。

“子非鱼,无需知鱼之乐。” 继续阅读“颓废2017.6”

cctv13_请扩大你的镜头

CCTV13 是当前中国中央电视台的新闻频道,24小时不间断报道国内外发生的大事件。但我觉得CCTV13的镜头还不够大,关注的焦点还太少,希望改进!

我有种感觉似乎中国的今天,就是印度的明天。印度会快速发展,所以我们也应当增多,并及时更新对这个国家的了解。因为改变对一个国家的既有印象,是件费时的事,有迟后效应。中国是一个贫穷落后国家的印象,至今还是许多外国人心中的刻板印象,甚至连同属中国,隔海相望的台湾,也是如此,居然对中国大陆移动支付感到惊讶,对中国大陆高铁世界领先觉得不可思议,更不用说其他和我们说着不同语言,接收的信息大部分来自西方媒体的欧、美人了。

不可否认,在这个信息化,全球化的时代,国家与国家间在文化交流上还有着国界之分,壁垒之隔。从我对中国邻国少得可怜的了解(也许除了国名,首都,地理位置,其它知之甚少),就可以知道这一点。所以我希望,中国的官方媒体可以更开放一点,少报道点美国枪击案,伦敦大火,韩国总统,日本首相——这些事情,管我们屁事,你关不关心,它们都在那里。为什么不多关心关心我们国内的民生、司法、百姓维权问题,难道我们国内每天都太平无事吗?为什么不多让人民了解一下周边国家的日常生活,风土人情,即时新闻?我想了解印度社会的愿望,超过英国;我想了解泰国文化的兴趣,超过美国;我想听到周边国家领导人演讲的声音期盼,超过特朗普。

我们周边每天一定会发生很多事,为什么只报道美国,美国,还是美国,同样的新闻甚至反复播放。说实话,中国最终能不能强大,最重要的因素还是中国人自己的能力。深刻了解美国国情的事,让那一帮研究员在空调房里年复一年的研究吧,请放过我的耳朵。