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My computer is dell xps 8700 , nvidia 745 gtx, intel core 7. I tried to install ubuntu willy werewolf on my desktop but it didn't work. The graphic look horrible. words aren't showing correctly. some letters are missing. I tried one month ago ubuntu 15.04 This version worked correctly. and it's 14.04 work correctly too.Please help. Your sincerely Agnieszka

Agnieszka Żwirska
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  • Try booting into recovery mode and switching back to open-source drivers (if you are using proprietary ones) – Rishabh Nov 03 '15 at 19:35
  • The problem is starrting when I try to install ubuntu 15.10 At the beggining. – Agnieszka Żwirska Nov 04 '15 at 08:04
  • As i understand you are trying to do a clean install? with a pendrive? Is the try ubuntu option working correctly? – Rishabh Nov 04 '15 at 08:40
  • The try ubuntu isn't working. Ad the boot of usb or dvd the problem is starting. I didnt have the problem on 15.04 vivid vervet. – Agnieszka Żwirska Nov 04 '15 at 08:45
  • did you try making the usb again? checked the checksum of downloaded wily? – Rishabh Nov 04 '15 at 08:49
  • On the lts version 14.04 trusty tahr my dell is working good and on vivid vervet 15.04 my dell is working goog too. I tried the instalation process many times with 3 diffrent usb and 3 diffrent dvds .I tried to install ubuntu on my friend computer and it was working correctly. I don't no what cause this problem. My drivers are working correctly beacause on windows 10 and 7, and 8,1 I didn't have any problems at all but I want to use ubuntu not windows. – Agnieszka Żwirska Nov 04 '15 at 08:51
  • I have a computer test installed in bios by dell I Tested my dell The test didn't show any problems with my computer – Agnieszka Żwirska Nov 04 '15 at 08:53
  • The checksum of willy was correct. – Agnieszka Żwirska Nov 04 '15 at 09:07

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I have the same hardware (xps 8700 with nvidia 745 gtx) and I confirm the problems: graphic looks horrible, words aren't showing correctly, some letters are missing. Moreover, login window (never seen in ubuntu live!) goes blank and then returns to the login screen again in a never ending loop when you try to access.

I can also confirm, with 15.04 all is fine (nouveau). I'm still investigating the problem. If you create a USB live with persistent capability (see How to create UEFI-only bootable USB live media?) passing 'nomodeset' argument to the kernel when booting (press 'e' on grub and insert 'nomodeset' before 'quiet' argument), you will able to run 15.10 in a low resolution and login window will disappear!

With this configuration, you can try to update ubuntu (apt-get update; apt-get upgrade) or to install nvidia driver since live session uses noveau as default. These systems have failed on my Dell so I think it is a bug related to the new kernel 4.2 (see also this post: http://ubuntuforums.org/showthread.php?t=2300068). Since live usb with persistency can't update the kernel, in the next week I will try to install Ubuntu on a removable device to try to find out the actual problem. Another way is to update 15.10 iso with a new kernel. Wait and see.

Update: a fresh install with 4.2.0-19-generic works fine using nvidia driver 352.63. As stated above, pass nomodeset argument to the kernel, update and upgrade ubuntu, and then enable the proprietary nvidia driver.

Community
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yelsma
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