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Filed from caserun https://tcms.engineering.redhat.com/run/100139/#caserun_3856463 Version-Release number of selected component (if applicable): Build : RHEL-7.0-20131111.1 xorg-x11-server-Xorg-1.14.99.901-5.20131101.el7.x86_64 xorg-x11-drv-ati-7.2.0-6.20131023gitf1dc677.el7.x86_64 kernel-3.10.0-48.el7.x86_64 Steps to Reproduce: Get your display highest supported resolution, use xrandr for example (it is the first resolution in the list, 1680x1050 in my case). 1. Run xrandr and set higher resolution that you have supported xrandr --output LVDS --panning 1600x1200 Note: replace "LVDS" with real name of your output interface. Actual results: """ [test@dhcp46-252 Desktop]$ xrandr --output default --panning 1600x1200 xrandr: Failed to get size of gamma for output default xrandr: screen cannot be larger than 1680x1050 (desired size 1680x1200) """ Panning didn't turn on but I tried setting it to 0 anyway: """ [test@dhcp46-252 Desktop]$ xrandr --output default --panning 0x0*0+0 xrandr: Failed to get size of gamma for output default X Error of failed request: BadRRCrtc (invalid Crtc parameter) Major opcode of failed request: 139 (RANDR) Minor opcode of failed request: 29 (RRSetPanning) Crtc id in failed request: 0x17c Serial number of failed request: 21 Current serial number in output stream: 21 [test@dhcp46-252 Desktop]$ """ Expected results: Make sure the screen is panned and you can tavel in panned space. No crashes/ errors at display should appear.
Bug also affects AMD/ATI Kaveri [1002:1304]
You need linux-kernel-firmware >= 20131106-0.2.git7d0c7a8
This need to be retested but here i can not reproduce with : linux-firmware-20140102-0.2.git52d77db.el7.noarch kernel-3.10.0-89 mesa-dri-drivers-9.2.5 xorg-x11-drv-ati-7.2.0-8.20140113git3213df1 xorg-x11-glamor-0.5.1-4.20140115gitfb4d046c Note that bonaire GPU are still likely to lockup you will have something like : radeon 0000:01:00.0: GPU lockup In the kernel log. When GPU lockup screen is likely to go black.
We believe this is already fixed but moving to 7.1
This should already work in 7.0 but reassigning to kernel as if it is an issue than it is a kernel issue.
Retested on build : RHEL-7.1-20141006.1 linux-firmware-20140911-0.1.git365e80c.el7.noarch kernel-3.10.0-175.el7.x86_64 mesa-dri-drivers-10.2.7-3.20140910.el7.x86_64 xorg-x11-drv-ati-7.4.0-1.20140918git56c7fb8.el7.x86_64 xorg-x11-glamor-0.6.0-2.20140918git347ef4f.el7.x86_64 No longer affects: Radeon HD 8770 [1002:6650] No longer affects: AMD/ATI Kaveri [1002:1304]