Gotchas with dual-headed X with RandR on ATI cards
Xinerama is the old general way to set up multi-headed X so that thingsactually knew that you had more than one display. In Fedora 8, many carddrivers (including radeon , the driver for ATI cards) have switched tousing the XRandR extension.
The Fedora 8 GUI configuration tools don't know anything aboutRandR-based dual-head configuration; if you try to use them anyways,nothing helpful happens. In theory you can do all of it on the fly with xrandr ; in practice this
太誇張了
從 熊一豆 那邊看回來。講刁民講暴民，我等戴皇冠的原來有排都未夠班。看到目瞪口呆。更有趣是隨便上網search一下，原來有人讀了有關新聞後的反應是「梁家傑你 為何不可以輸得漂亮，輸得乾脆，輸得灑脫 呢？」（其實輸的是譚
我要私奔
我Daisy一生人最痛恨填表，尤其痛恨填寫聯交所的A1表格。幫忙做這單deal的trainee卻聲稱自己病了，我唯有硬著頭皮去完成這件厭惡性工作。無奈一看到那疊厚厚的表格，頭痛、耳鳴、手震等「少年柏金遜」的徵狀，通通
My web spider technical requirements
I have been looking at the web server logs lately, which is usuallyan activity that's calculated to put me into a grumpy mood. As aresult of this, I have decided to write down in one place my technicalrequirements for web spiders, the direct things that I expect them to doand not do.
(This is excludes issues of basic functionality, like correctly parsingHTML, resolving relative links, and making correct HTTP requests, andbasic proper web spider behavior like respecting robots.txt .)
心口有個「勇」字
我們的活動主要玩敲擊及形體舞動。這個朋友仔令我好深刻，因為佢心口有個「勇」字的，他完全沒有因為看不到
The different types of hash collisions
When you're considering using hashes as indexes, people can wind upsaying that collisions aren't going to be a problem because the hashesare cryptographically sound. At such times, it's important to rememberthe distinction between deliberate hash collisions and accidental hashcollisions.
The distinction between deliberate hash collisions and accidentalones is that an accidental hash collision is one that just happens,while a deliberate hash collision is one that can be produced by anattacker. All hashes that are shorter than their inputs necessarilyhave accidental
答問
回答尖銳問題,究竟有什麼技巧?
"你現在收入多少?稿費又有多少?"答:"關你屁事."
"你最近有咩大作,點解咁耐無見你的文章?"答:"無你咁有才華,我封筆了."
"你咁耐無書出,係唔係同出版社關係唔好?"答
Linux virtual terminals and the X server
Linux virtual terminals have a simple conceptual model; you hit Alt-Fnand the kernel switches you to virtual terminal n. It even works with X,except that you have to remember to hit Ctrl-Alt-Fn when you're in X toswitch out of it. What I suspect many people don't know is that in thecase of X this simple conceptual model is a bit of a lie.
The issue is that text VTs and the X server VT are in different graphicsmodes, so
地盤
我對地盤有一種奇異的想像，這種想像超越了知識與理性，也超越了歡喜與厭惡，那是介於詛咒或被詛咒的心情。
有一陣子，我居住和工作的地方都有地盤在旁，後來，我們的城市就發展成一個大地盤，小民被迫活在沙石與磚堆
A lesson learned: Always upgrade Fedora with a respin CD
I spent a large part of today upgrading my office workstation fromFedora Core 6 to Fedora 7 (I wanted to go straight to Fedora 8, buteither I am too impatient or the Fedora 8 installer stalled duringdependency resolution). As usual, I did this by sticking in theFedora 7 DVD and telling it to do an upgrade install.
The problem with this is simple: an up to date machine running an oldFedora can have more recent versions of packages than are on the installmedia for the newer Fedora