[Bug 796485] New: kernel-desktop-3.7.1-17.1.x86_64 gives low brightness when using vgaswitcheroo
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c0 Summary: kernel-desktop-3.7.1-17.1.x86_64 gives low brightness when using vgaswitcheroo Classification: openSUSE Product: openSUSE 12.2 Version: Final Platform: x86-64 OS/Version: openSUSE 12.2 Status: NEW Severity: Major Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: fedev@gmx.net QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Firefox/17.0 As mentioned on the subject, when using kernel-desktop-3.7.1-17.1.x86_64 (from tumbleweed), switching to the ATI card with vgaswitcheroo does the switch however the brightness level is minimum and can't be adjusted. The Intel card works as usual. This seems to affect only the ATI card. Reverting to kernel 3.6.10-3-desktop solves the issue. Reproducible: Always Steps to Reproduce: 1.echo "DDIS" > /sys/kernel/debug/vgaswitcheroo/switch 2.Restart GDM 3.See GDM restarting with an extremely low brightness Actual Results: The switch is done but the brightness level is extremely low. The screen is barely visible. Expected Results: The switch should be done without affecting the screen's brightness. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c1 --- Comment #1 from Federico Vecchiarelli <fedev@gmx.net> 2013-01-16 02:54:44 UTC --- Kernel 3.7.2-18-desktop has the same issue. Is no body looking at this ticket? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c2 --- Comment #2 from Federico Vecchiarelli <fedev@gmx.net> 2013-02-12 13:38:53 UTC --- The issue persists in kernel 3.7.6-23-desktop. Could anyone acknowledge reading this? I tried several backlight kernel parameters however there is no change. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c Federico Vecchiarelli <fedev@gmx.net> changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|Major |Critical -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c3 --- Comment #3 from Federico Vecchiarelli <fedev@gmx.net> 2013-03-11 02:41:40 UTC --- The issue keeps happening on kernel 3.8.1-30-desktop. I'm not sure if this is of any interest by dmesg is providing the below output: [ 8834.387593] Pid: 12799, comm: switch-vga.sh Tainted: G W O 3.8.1-30-desktop #1 [ 8834.387594] Call Trace: [ 8834.387606] [<ffffffff81004748>] dump_trace+0x88/0x300 [ 8834.387613] [<ffffffff815ab3bc>] dump_stack+0x69/0x6f [ 8834.387620] [<ffffffff81044f39>] warn_slowpath_common+0x79/0xc0 [ 8834.387629] [<ffffffffa04b539b>] __wait_seqno+0x4db/0x500 [i915] [ 8834.387662] [<ffffffffa04eceaf>] intel_enable_gt_powersave+0x45f/0x830 [i915] [ 8834.387715] [<ffffffffa04d521a>] intel_modeset_init_hw+0x3a/0x50 [i915] [ 8834.387747] [<ffffffffa04a21a9>] __i915_drm_thaw+0xd9/0xf0 [i915] [ 8834.387754] [<ffffffffa04a2513>] i915_resume+0x73/0xc0 [i915] [ 8834.387760] [<ffffffffa04a4876>] i915_switcheroo_set_state+0x96/0xb0 [i915] [ 8834.387766] [<ffffffff813af4bc>] vga_switchon+0x2c/0x40 [ 8834.387770] [<ffffffff813af920>] vga_switchto_stage1+0x30/0x40 [ 8834.387772] [<ffffffff813afd2a>] vga_switcheroo_debugfs_write+0x28a/0x370 [ 8834.387777] [<ffffffff811747a7>] vfs_write+0xa7/0x180 [ 8834.387780] [<ffffffff81174af1>] sys_write+0x51/0xa0 [ 8834.387784] [<ffffffff815be2ad>] system_call_fastpath+0x1a/0x1f [ 8834.387789] [<00007f0134e45230>] 0x7f0134e4522f [ 8834.387791] ---[ end trace 0e1b3cf52180bdc3 ]--- -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c4 --- Comment #4 from Federico Vecchiarelli <fedev@gmx.net> 2013-03-11 02:43:14 UTC --- I'm waiting until 12.3 is released. I will then file the bug under 12.3 since it is likely to be still present on it. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c5 --- Comment #5 from Federico Vecchiarelli <fedev@gmx.net> 2013-03-15 17:27:30 UTC --- Just completed the upgrade to 12.3. Now running kernel 3.7.10-1.1-desktop. The issue is still present. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c Federico Vecchiarelli <fedev@gmx.net> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P2 - High Component|Kernel |Kernel Product|openSUSE 12.2 |openSUSE 12.3 Target Milestone|--- |Final OS/Version|openSUSE 12.2 |SUSE Other -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c6 --- Comment #6 from Federico Vecchiarelli <fedev@gmx.net> 2013-03-15 17:58:01 UTC --- Created an attachment (id=530004) --> (http://bugzilla.novell.com/attachment.cgi?id=530004) Dmesg from 12.3 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c7 --- Comment #7 from Federico Vecchiarelli <fedev@gmx.net> 2013-03-16 05:53:24 UTC --- I tested it again, reverting to kernel 3.6.10-3 or earlier solves the issue. There must be something changed between the kernels that is affecting the backlight. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=796485 https://bugzilla.novell.com/show_bug.cgi?id=796485#c8 Federico Vecchiarelli <fedev@gmx.net> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |CLOSED Resolution| |UPSTREAM --- Comment #8 from Federico Vecchiarelli <fedev@gmx.net> 2013-04-15 20:58:39 UTC --- As there was no reply to this case and given that the issue was still present in a vanilla kernel, I created the below kernel bug report: https://bugzilla.kernel.org/show_bug.cgi?id=55311 Whoever needs any information about this case, please refer to that ticket. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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