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1answer
126 views

How to bisect upstream 12.10 kernel on 12.04?

I'd like to locate a kernel regression on ubuntu mainline kernel (from kernel-ppa/mainline - Kernel Ubuntu) between Quantal 3.6.1 and Quantal 3.6.2. I build on Mint 13 Maya (which is based on Ubuntu ...
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1answer
264 views

Cuda driver, CPU/GPU performances issue

I implemented a RNS Montgomery exponentiation in CUDA and on CPU for comparison. Everything nice everything fine. It runs on just one SM. However, I am going to tell you some strange regression in ...
4
votes
1answer
189 views

Is there a command like REISUB that only restarts X?

Is there a command like Ctrl + Alt + SysRq + R E I S U B that only restarts X - or drops down to shell (not a virtual console its broken)? Between Ubuntu, Unity/Gnome3, and the kernel ...
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2answers
5k views

NVidia Doesn't Show Up in Additional Driver + Power Regression Issue in Ubuntu 12.04

Thank you for reading. I am still having issue with power regression on my Asus K53SV after doing a fresh install of Ubuntu 12.04 (I have this issue with Ubuntu 11.10 as well). Thus a helpful guy told ...
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0answers
114 views

Firefox is really slow. Could my power supply or Ubuntu be the cause for this? [closed]

I have installed ubuntu 11.10 long time ago and since then i was experiencing graphic performance regressions. With updates some things got better, others remained the same. Things that remained the ...
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1answer
979 views

What is a realistic date for the kernel power regressions fixes?

Linux kernel has cumulated multiple power management regression bugs which make systems affected barely usable. A system that works at 30/30 temperatures on Windows during office work may work on ...
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0answers
101 views

Is the current drag to launcher behaviour the new default or a bug? [closed]

On Natty, I could drag a file to an icon on the launcher to bring up the window (e.g.: drag an image to the Firefox icon and wait for its window to show and then drop the file on, say, mediafire or ...
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3answers
2k views

Sandy Bridge Power Regression

Ubuntu 11.10 drives my Sandy-Bridge laptop fan crazy, just 1 week before official release! I thought it was a beta issue when testing daily builds on a regular basis, but I guess I was wrong... Is ...
6
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1answer
915 views

Linux kernel regression on power usage

Webupd8 reported this power management fix for the 2.6.38 Linux kernel regression: Add the following to the boot grub line "pcie_aspm=force" My question - how does this suggested fix differ from ...
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0answers
335 views

Low speed when transferring files between two computers [closed]

I am having issues when transferring files between two computers only on the local network, when downloading from the internet I have no issue (on either computer I am transferring from). I get speeds ...
2
votes
4answers
1k views

Backlight on/off button doesn't work on an Asus EEE PC 1005HAB [closed]

I've got an Asus EEE PC 1005HAB, and after upgrading to 11.04 I can no longer use Fn+F7 to turn on/off the screen backlight. The other Fn+FX keys I've tried so far all work. Is there some standard ...
2
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1answer
728 views

Broadcom BCM4312 wireless card does not work in 11.04 but did (out of the box) in 10.10

Here's my card : 02:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) When I try to install the Broadcom STA wireless drivers through 'Additional Drivers', it says ...
4
votes
1answer
164 views

How to troubleshoot a wireless networking regression?

I've been experiencing this perhaps slightly odd bug. It works flawlessly in Lucid, but not in Maverick and Natty. I find it seems to work when I'm booting a partition everyday (as I do for my main ...
1
vote
1answer
467 views

Losing Visual Effects settings after reboot

I recently upgraded to Ubuntu 10.10 from 10.04 and ran into a problem. If I right click on my Desktop, select Change background it takes me to the Appearance Preferences and then I go to the Visual ...
1
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1answer
802 views

How can I connect my HP Photosmart C3100 printer in 10.04 (regression from 9.x)

My printer was working under 9.x. It is a an HP Photosmart C3100 series. When I open Admin->Printing no local printers are found. I try to add via Other (My local choices are Serial and ...