Bug 54171
| Summary: | black screen after boot screen with intel gma 4500m (acer travelmate) | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | thubten topgyal (thubtop) |
| Component: | Video(DRI - Intel) | Assignee: | Jani Nikula (jani.nikula) |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | aaron.lu, borgdylan, daniel, intel-gfx-bugs, t |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 3.x | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Bug Depends on: | |||
| Bug Blocks: | 56331 | ||
| Attachments: |
Output of lspci -vmmnn without loading module
the output of lspci -vmmnn after the modprobe command |
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Description
thubten topgyal
2013-02-20 19:38:36 UTC
Looks like this is a bug of the graphics drm driver issue. Please try booting with the i915.invert_brightness=1 module parameter. (Many live CDs will allow you to edit the kernel command line before booting too.) If this helps, please attach output of 'lspci -vmmnn' on your machine. Ping, please try the suggestion from comment #2 and report back. (In reply to comment #2) > Please try booting with the i915.invert_brightness=1 module parameter. (Many > live CDs will allow you to edit the kernel command line before booting too.) > > If this helps, please attach output of 'lspci -vmmnn' on your machine. topgyal, please provide the info to make some progress on this bug. Hello, I have the same problem. So I tried it: > admini@laptop2 ~ $ modprobe -v -a i915.invert_brightness=1 > WARNING: Module i915.invert_brightness=1 not found. I also tried: > admini@laptop2 ~ $ insmod -v i915.invert_brightness=1 > insmod: can't read '-v': No such file or directory > admini@laptop2 ~ $ insmod i915.invert_brightness=1 > insmod: can't read 'i915.invert_brightness=1': No such file or directory > admini@laptop2 ~ $ insmod i915.invert_brightness > insmod: can't read 'i915.invert_brightness': No such file or directory Thomas131 Created attachment 101181 [details]
Output of lspci -vmmnn without loading module
Also I wasn't able to run the module, I tried lspci -vmmnn. Here's the result.
(In reply to comment #5) > Hello, > I have the same problem. So I tried it: What makes you think you have the same problem? > > admini@laptop2 ~ $ modprobe -v -a i915.invert_brightness=1 > > WARNING: Module i915.invert_brightness=1 not found. That should be 'modprobe i915 invert_brightness=1'. But are you sure you don't already have i915 loaded at that point? 'lsmod | grep i915' should tell you. To be on the safe side, you should try adding i915.invert_brightness=1 to the kernel command line in your boot loader instead. (In reply to comment #7) > What makes you think you have the same problem? Because I also have an Acer Travelmate with an Intel GMA 4500mh(I don't know if the letters are true because the laptop doesn't work at the moment) Chip and When I searched on the internet, I found out that this is a problem of the blacklights. > That should be 'modprobe i915 invert_brightness=1'. But are you sure you > don't > already have i915 loaded at that point? 'lsmod | grep i915' should tell you. > > To be on the safe side, you should try adding i915.invert_brightness=1 to the > kernel command line in your boot loader instead. I will try it, when I set up the laptop with Linux Mint 15 in some days. Thomas131 Created attachment 106641 [details]
the output of lspci -vmmnn after the modprobe command
Hello,
Sorry for writing back so late.
I have successfully excuted the modprobe command. Then I've created this new output of lspci -vmmnn.
Thomas131
Thomas131, you say that you have successfully executed the modprobe command. Does that mean having i915.invert_brightness=1 module parameter makes a difference or not? Does the screen light up with the parameter, but not without the parameter? This is the crucial question. Hello, Thanks for writing back. Sorry for my late answer. I have had problems to log in to bugzilla. So I gave up about 5 times. The modprobe command doesn't seem to work. The boot parameters worked! m.f.G.:Thomas131 Shotgun approach patch sent to use inverted brightness for all gen4 gm45 acers. http://mid.gmane.org/1379678731-31098-1-git-send-email-jani.nikula@intel.com Presumed fixed by commit ee1452d7458451a7508e0663553ce88d63958157 Author: Jani Nikula <jani.nikula@intel.com> Date: Fri Sep 20 15:05:30 2013 +0300 drm/i915: assume all GM45 Acer laptops use inverted backlight PWM which on its way to 3.13. This fix broke already working laptop displays (as of 3.12) (Acer Extensa 5635Z) Looks like we'll have to revert the fix referenced in comment #13 due to regressions, and reopen this bug. Revert is on its way. Revert is merged, thanks for reporting this regression. (In reply to Daniel Vetter from comment #17) > Revert is merged, thanks for reporting this regression. Daniel, you got it backwards. This needs to be reopened because the fix was reverted. :) The fix has been merged to drm-intel-nightly as commit e107db4002a5cb98db1b3e121f47cf5d31d5a704 Author: Jani Nikula <jani.nikula@intel.com> Date: Mon Jan 13 17:30:34 2014 +0200 erm/i915: quirk invert brightness for Acer Aspire 5336 It should eventually flow back to stable kernels. Thanks for the report. (In reply to Jani Nikula from comment #19) > commit e107db4002a5cb98db1b3e121f47cf5d31d5a704 Make that d2ce50dd1cc9e702428b7fe761aa6e46e758068c |