Greetings. I recently purchased Dell Inpsiron 17R 5737. My driver specification is as follows: lspci | grep VGA VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) Any distribution I try with kernel version > 3.2 shows distorted resolution with purple-green colors. There have a few threads posted on Ubuntu forums (one of them is mine) but no solutions to this problem as of yet. I tried many different suggested approaches: updated nvidia driver, installed bumblebee driver, tried various suggested configurations, but none of them worked. At the end, I can only use distribution with kernel <= 3.2 version, but I *cannot* take full advantage of GPU feature nor can I adjust display's brightness or change timing parameters when screensaver starts. It would appear that any distribution I try with kernel <= 3.2 has a default video driver somehow making colors and resolution appear properly, but I have no control over any other display's features. There is obviously something in kernel version > 3.2 that causes distorted resolution and purple-green colors and it doesn't seem to be distribution-specific problem as it appears to stem directly from linux kernel. Therefore, I would ask you to please address this problem in any future kernel developments as all linux distributions simply use the kernel that you provide and the root of the problem seems to exist in how kernel interacts with video hardware. Please let me know if you require any additional information. Thank you, Victor.
Moving to i915 driver.
A few things: - Please uninstall the nvidia blob driver and retest without that. If the intel driver works with that config, please get support from Nvidia. - Since this is a regression, can you please bisect the offending commit? Ubunut has nice howtos for this. - Please boot with drm.debug=0xe added to your kernel cmdline with the broken monitor setup, then attach the output of dmesg to this report.
(In reply to Daniel Vetter from comment #2) > A few things: > - Please uninstall the nvidia blob driver and retest without that. If the > intel driver works with that config, please get support from Nvidia. > > - Since this is a regression, can you please bisect the offending commit? > Ubunut has nice howtos for this. > > - Please boot with drm.debug=0xe added to your kernel cmdline with the > broken monitor setup, then attach the output of dmesg to this report. Timeout. Please reopen if the problem persists with recent kernels.