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Xrandr changes resolution on it's own initiave

I am running Ubuntu 14.04 with bumblebee. I've got an HD 4000 and a 635m, and as many of you know the display is controlled by the intel card. I have a CRT that can reach refresh rates up to 120 hz. ...
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2answers
2k views

how to install intel HD 4000 ubuntu 14.04?

i am new to Ubuntu and i want to install the driver of intel hd 4000,any help? i tried a lot of thing but i got missing packages and make problems due to auto make versions mismatch, the graphics ...
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0answers
241 views

Xrandr error when using using 2560x1440 monitor

I have an 2560x1440 monitor on an Intel HD graphics adapter. Since Intel HD cannot by default drive a display higher than 1920x1200, I used in Ubuntu 12.04 the following trick (derived from ...
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52 views

Ubuntu really slow - Intel SSD

I'm still having problems with my laptop (not sure if this issue is related to this one). Acer v5-122p. I installed a new ssd on it but it's really slow. Please find below some benchmarks: ...
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1answer
302 views

Ubuntu 12.04 on Dell Latitude E6530 i5/HD4000/FHD

I am planning to buy Dell E6530 with Full HD display, i5 Ivy Bridge processor and Intel HD 4000 (without dedicated graphic card). I will buy it with Ubuntu 12.04 installed by Dell. Does somebody have ...
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358 views

"“The system is running in low-graphics mode” Acer 3820tg, Ubuntu doesnt boot :(

i'm Linux Newby and im using Ubuntu 12.04 (64bit) on Acer timeline 3820tg. Everything worked fine until I unplugged the power adaptor. Well In Batterymode everything was still okay, but when i tried ...
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0answers
101 views

Docky artifacting on edges [closed]

I've got 2 laptops running Quantal 32-bit, one with a 2nd gen Core i5 and another with a 3rd gen Core i3. On my i5 laptop, Docky in 3d mode produces a translucent green artifact on both the left and ...
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1answer
266 views

How much power does a dedicated graphics card consume when only the integrated card is used?

My desktop machine has an Intel i5 CPU with integrated graphics and a dedicated geforce card. Through blacklisting the nvidia driver in Linux and by using two cables, I'm planning to use the ...
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1answer
2k views

Acer Revo RL80 graphics unsupported?

I have just purchased an Acer Revo RL80 net top computer. I've been trying to get Ubuntu up and running on it with quite a bit of trouble. The only way I can get it to boot is through using the ...
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1answer
305 views

Ubuntu 12.10 and Lenovo X1 HDMI output

I'm trying desperately to output HDMI from my laptop to my Samsung 40EH6030 LED TV. I connected the HDMI1 on the TV to the computer, it shows that it detects the TV (40" Samsung Electric..) in the ...
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1answer
137 views

Icons in Dash show up in weird colors. OpenGL Issue?

I have a somewhat weird issue with my Precise setup (32bit). Since last Friday some colors are very different from the original ones. But only in the Dash (not in Nautilus or the panel). Moreover, the ...
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2answers
4k views

How do I deactivate dynamic contrast on a Dell XPS?

I am experiencing annoying automatic backlight brightness changes under ubuntu 12.04 LTS on my Dell XPS ultrabook. It seems to be connected to the amount of white pixels on the screen (switching ...