Red Hat Bugzilla – Bug 802128
Last modified: 2013-02-13 03:16:59 EST
Created attachment 569181 [details]
Description of problem:
I can`t change the resolution at my new laptop hp envy 14 2050se. I have only 1024 x 768 pixels resolution but laptop have 1366 x 768 pixels
Version-Release number of selected component (if applicable):
fedora with last updates
Steps to Reproduce:
1. install fresh fedora
2. go to "system parameters" - "screen" - and see only settings 1024 x 768 pixels and 800 x 600 pixels
1024 x 768 pixels maximum resolution capable
switch to 1366 x 768 pixels
Created attachment 569182 [details]
[midnighter@localhost log]$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: ATI Technologies Inc NI Whistler [AMD Radeon HD 6600M Series]
Created attachment 569219 [details]
grub configuration has "nomodeset" parameter. Without this parameter I have got a black screen,
(In reply to comment #4)
> more info:
> grub configuration has "nomodeset" parameter. Without this parameter I have got
> a black screen,
Well that's your real problem. nomodeset gives you the vesa driver, which can't set arbitrary resolutions.
If you have two machines, boot without nomodeset but with 'drm.debug=0x4' on the kernel command line, then ssh into the broken machine and run dmesg. That output should show us the setup failure, I hope.
If you can't do that, then I think you have to try explicitly blacklisting one or the other of the radeon or i915 kernel drivers to figure out which one is causing the black screen.
I run ssh server on broken machine and try to connect from another. I could not to connect. Next I delete previous the /var/log/message file on broken machine, reboot machine and remove 'nomodeset' parameter. Then I switch off system by power button after see the black screen during some time and connect hard disk of broken machine to another machine. I could see any the /var/log/messages file. I thing broken machine hangs before the ssh server starts.
blacklist i965 or radeon no difference. I have got black screen in every case with removed 'nomodeset' parameter
mistake: "I could not see the /var/log/messages file"
I understand my problem. I have brightness set to zero when I booting. I login to KDE with black screen and see the kde workspace and get good resolution 1366 x 768 pixels. Could you please tell me how to set up more brightness with boot system?
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